KD-HD8X8BT - Key Digital

Rev 0 – June 2012 

Key Digital ® , led by digital video pioneer Mike Tsinberg, 

develops and manufactures high quality, cutting-edge 

technology solutions for virtually all applications where 

high quality video imaging is important. Key Digital ® 

is at the forefront of the video industry for Home 

Theater Retailers, Custom Installers, System Integrators, 

Broadcasters, Manufacturers, and Consumers. 

KD-HD8X8BT 

8 Inputs to 8 Outputs HDBT/HDMI/DVI via Single CAT6/STP 

Matrix Switcher with Audio Distribution System 

Also Available in Configurable Models Below: 

KD-HD8X8BT-1X15, 2X14, 3X13, 4X12, 5X11, 6X10, 7X9 

KD-HD8X8BT-15X1, 14X2, 13X3, 12X4, 11X5, 10X6, 9X7 

Setup Guide 

Key Digital ® Systems :: 521 East 3rd Street :: Mount Vernon, NY 10553 

Phone : 914.667.9700 Fax : 914.668.8666 Web : www.keydigital.com 

The Experts in Digital Video Technology and Solutions

2 3 

Table of Contents 

1. About KD-HD8X8BT. ....................................................... 3 

2. Connections, LEDs and Button Map ........................................... 4 

3. Application Example. ....................................................... 6 

4. Quick Setup Guide. ........................................................ 7 

5. EDID Control .............................................................11 

6. Advanced Switching Options .................................................13 

7. Audio Distribution Features ...................................................17 

8. Control Routing via Digital IQ ................................................19 

9. Digital IQ Control Routing with Compass Control System ............................24 

10. IR Remote Command List ................................................. 28 

10. RS-232 Control Codes .................................................... 29 

11. Firmware Update Wizard ................................................... 32 

12. Specifications. .......................................................... 34 

13. Important Product Warnings & Safety Instructions. ............................... 36 

14. How to Contact Key Digital ® ................................................ 37 

15. Warranty Information. ..................................................... 38 

Always follow the instructions provided in this Operating Manual. 

© 2012 Key Digital, Inc. All rights reserved. 

1. About KD-HD8X8BT 

Key Digital ® Digital IQ Series KD-HD8X8BT is a HDBT/HDMI/DVI Matrix Switcher capable 

of switching up to 8 HDMI/DVI Video Sources/Inputs to 8 independent Zones/Outputs via 

HDMI/DVI and CAT6/STP. Features card slot architecture providing flexible Input/Output 

configurations. 

Advanced HDMI ® Features 

½½ 

3D – Capability to pass 3D stereoscopic signal formats 

½½ 

4K – 4096x2160/24 video resolution support for commercial applications such as Digital Movie 

Theaters, CAD, Post Production, Graphics, etc. 

Key Features 

½½ 

Full switching of 5 independent matrixes: Video, Analog/Digital Audio, HDMI Audio, IR, RS-232 

½½ 

Control routing function to source/destination connections for Bi-Directional IR and RS-232 

Control adds approximately 32 ports to KD-MC2500 Master Controller 

½½ 

Supports all SD, HD, and VESA (VGA, SVGA, XGA, WXGA, SXGA, UXGA) resolutions up to 

1080p (60Hz & 50Hz) 

½½ 

Internal EDID Library features 12 default EDID configurations, in addition to Native EDID data for 

any Output/Display 

½½ 

TMDS re-clock for support of long HDMI/DVI or CAT6/STP connections and daisy chain 

configurations 

½½ 

Full Buffer Technology – Full matrix buffering of HDCP and EDID for seamless switching and 

viewing of any source/input with any display/output, regardless of multiple output viewing relation 

½½ 

Supports switching of lossless compressed digital audio: 

»» 

Dolby ® TrueHD, Dolby ® Digital Plus and DTS -HD Master Audio 

½½ 

AudioFlex System – system in which Multi-Channel audio can be routed to capable zones, 

while 2-Channel audio is routed to zones with this requirement 

½½ 

Flexible I/O configuration from 1x15 to 15x1 and multi-unit configurations from 8x16 to 32x32 

½½ 

CAT6 outputs implement HDBaseT ® format 

Key Benefits 

½½ 

Transmits 1080p/60Hz signals up to 400 ft. and 1080p/24, 1080i, 720p signals up to 600 ft. 

when used with KD-CATHD500Rx receive baluns and KD-CAT6STP1X CAT6/STP cabling. 

Compatible with third-party CAT6/STP with lesser distance performance. 

½½ 

Fully automatic CAT6/STP cable equalization 

½½ 

16 active outputs (8 HDMI/DVI and 8 CAT6/STP) enable flexible integration 

½½ 

Full Audio control per output for volume, treble, bass, balance, and lip-sync for 2-ch stereo 

formats from analog or digital sources 

½½ 

Serial IR, Optical IR, Front Panel & RS-232 control. Supports major control systems such as 

Compass Control ® , AMX ® , Control4 ® , Crestron ® , RTI ® , Universal ® . 

Accessories 

»» 

External +12V/8.33A (100W) Power Supply – KD-PS12V8A 

»» 

IR Remote control with two batteries; HDMI Cable Clips (16); 6 ft. USB Data Cable

4 5 

2. Connections, LEDs and Button Map 

Front Panel 

Main Control Panel 

Operation Mode Switch 

Switch to “Program” mode 

when updating firmware 

Rear IR Eye (Receiver) 

Rear IR receiver for 

remote control 

Power 

12V/8.33A (100W) 

Power Supply 

Left Selector 

Use to access Main Menu 

and select sub-menu choices. 

(see Quick Setup Guide section 

for more information) 

LCD Screen 

Displays Menu selections, Input and 

Output information, system settings and 

status information 

Right Selector 

Use to access sub-menus 

within the Main Menu. 

(see Quick Setup Guide 

section for more information) 

IR Eye 

TCP/IP 

This is the main TCP/IP port for interfacing 

with control systems. It supports the same 

control commands as the RS-232 port 

and it can support TCP/IP to RS-232 

conversion & routing. 

USB 

The USB port is for 

software upgrades 

only. It is not used for 

control interface. 

RS-232 

The main RS-232/DB9 

port for interfacing with 

a control system. 

Serial IR 

To Input from Control interface 

for controlling unit via Serial IR 

and IR routing 

HDMI Input and Output Numbering 

Generically configured, KD-HD8X8BT contains 8 Input cards and 8 Output cards. The Input cards 

are addressed from 01-08, and the Output cards from 01-08. 

Rear Panel 

Rx Input Card (KD-HD8x8BTIC) 

Looking at the rear panel, card slots are numbered from left to right 

Left Analog Audio / PCM Audio Input 

Supports Left channel Analog Audio Input or 

use for Coaxial Digital Audio Input 

HDMI Input 

To Input source components 

Right Analog Audio Input 

Supports Right channel Analog Audio Input 

Serial IR / RS-232 

Use the KD-HD8X8BT as a Control Router for 

devices integrated into your system 

Link LED 

Indicates that input connection is stable 

Input Cards 1-8 (KD-HD8x8BTIC) 

Please see p. 5 for detailed description 

Output Cards 1-8 (KD-HD8x8BTOC) 

Please see p. 5 for detailed description 

Main Control Panel 

Please see p. 5 for 

detailed description 

Tx Output Card (KD-HD8x8BTOC) 

Left Analog Audio / PCM Audio Output 

Send Left channel Analog Audio or Coaxial 

Digital Audio to your Display or other devices 

CAT6/STP Output 

Use the KD-CATHD500Rx Receive Balun to carry Video, 

Audio, and Control to your Display (or other) devices 

HDMI Output 

To Output to Display 

Right Analog Audio Output 

Send Right channel Analog Audio 

to your Receiver or other devices 

Serial IR / RS-232 

Use the KD-HD8X8BT as a Control Router for 

devices integrated into your system 

Link LED 

Indicates that output connection is stable

6 7 

3. Application Example 

Desktop PC 

VGA 

HDMI 

L/R/PCM 

KD-VP1250 

HDMI 

Transmits: 

»1080p/60Hz resolution up to 400 ft. 

»1080p/24, 1080i, 720p and 480i/p resolutions up to 600 ft. 

» When used with KD-CATHD500Rx Receiver Baluns 

and KD-CAT6STP1X cabling 

CAT6/STP 

HDMI/DVI 

Audio 

IR/RS-232 

VGA 

570’ 

KD-CATHD500 

IR 

Display 1a 

(mirrored) 

Apple TV 

HDMI 

IR 

480’ 

KD-CATHD500 

HDMI 

IR 

Satellite 1 

CAT6/STP 

HDMI 

IR/RS-232 

Display 2a 

(mirrored) 

IR 


HDMI 

Display 1 Display 2 

Display 4 

Display 6 

CAT6/STP 

IR/RS-232 

HDMI 

Display 3 

Satellite 2 Cable 1 Cable 2 

HDMI 

IR 

RS-232 

HDMI 

RS-232 

HDMI 

IR 

HDMI 

IR/RS-232 

HDMI 

HDMI 

IR/RS-232 

RS232 Control 

L/R/PCM 

CAT6/STP 

Serial IR 

Optical IR 

Display 5 

IR/RS-232 

IR 

HDMI 

CAT6/STP 

L/R/PCM 

Blu-Ray 

Blu-Ray 

IR 

HDMI 

IR 

HDMI 

KD-MC2500 

IR 

RS-232 

RS-232 

USB 

TCP/IP 

500’ 

450’ 

Surround Rcvr. 

KD-CATHD500 KD-CATHD500 

IR 

HDMI 

IR 

HDMI 

Display 7 

Display 8 

4. Quick Setup Guide 

Initial Setup & Operation for HDMI via Front Panel 

1. Connect Input & Output Devices 

»» 

Slots 1-8 are labeled Rx, and are Input Card Slots 1-8. 

»» 

Slots 9-16 are labeled Tx, and are Output Card Slots 1-8. 

»» 

Connect your source components to the Input cards 

»» 

Connect your displays to the Output cards 

»» 

For output devices connected via CAT6/STP, use KD-CATHD500Rx via the RJ45 port 

»» 

Power up all sources and displays 

2. Establish an HDMI Handshake for Each Source 

»» 

Push the left selector to access the Main Menu choices 

»» 

Using the left selector, scroll to the “EDID Setup” Menu 

»» 

Press the right selector to navigate to the EDID sub-menus 

»» 

With the left selector, scroll to the Input source you wish to provide the EDID to 

»» 

Using the right selector, scroll to the HDMI or CAT6/STP Output you wish to establish an 

HDMI handshake from, or select a Default EDID 01-12 from the EDID library 

»» 

Press the right selector to set the Handshake for that combination 

»» 

Continue this procedure for all Inputs 

»» 

The EDID control and HDMI input set up is stored in a non-volatile memory back up and is 

only required during initial set up or when a new display or source is added to the system. 

»» 

Establish a default handshake for ALL Inputs: 

»» 

Using the ‘EDID Setup’ Menu, select ‘ALL Inputs’ and scroll to the Output number 

you wish to copy the EDID from (HDMI, CAT6/STP or a Default EDID setting) and press 

the right selector 

3. Switching via Front Panel 

»» 

Push the left selector to access the Main Menu choices 

»» 

Using the left selector, scroll to the “Video Switch” Menu 

»» 

Press the right selector to navigate to the Video Switch sub-menus 

»» 

Using the left selector, scroll to the Output you wish to select 

»» 

Using the right selector, scroll to the Input you wish to select 

»» 

Finally, press the right selector to make the switch 

4. Sending your output via KD-CATHD500Rx CAT6/STP Receive Balun(s) 

»» 

Both HDMI and CAT6/STP Outputs are active on all Output Card Slots, therefore no 

configuration is necessary to activate the CAT6/STP Output for each Tx Card Slot.

8 9 

Front Panel Menu Selection Controls: 

Power On 

½½ 

The unit will power up with a push on either the left or right Selector. 

Power Off 

½½ 

The unit will power off through IR, Remote, RS-232 or TCP/IP commands only. 

Left Selector 

½½ 

Main Menu: To access the Main Menu push this selector once. 

½½ 

To Select Main Menu Options: Turn selector left or right to select Menu Options 

½½ 

Sub-Menu values: Turn this selector to scroll through the sub-menu selections. There will be left 

and right sub-menu choices. Use the left selector to change left side options 

½½ 

To Go-Back to a previous menu: from whatever menu you are presently in you may return to the 

previous menu by pressing this selector once. You will return to the menu you were previously in. 

Right Selector 

½½ 

Sub-Menu: After selecting a specific Main Menu (1-9) option with the left selector, press the right 

selector to select its Sub-Menu. You will be taken to the sub-menu for the main menu option you 

had previously selected. 

½½ 

Sub-Menu values: Turn this selector to scroll through the sub-menu selections. Use the right 

selector to change right side options. After a sub-menu choice has been made, push this 

selector once to enter it. The display will blink to acknowledge your choice. 

Menu Tree on LCD Display 

Main Menu Selections: 

Using the left selector, choose from the following Main Menu options; 

1. Video Switch 

2. Audio Switch 

3. Volume Control 

4. Audio Output Set Up 

5. Audio Input Set Up 

6. EDID Set Up 

7. TCP/IP Set Up 

8. Factory Default 

Using the right selector, push to enter the sub-menu for any of the selected main menu options 

above; 

Sub-Menu Selections: 

1. “Video Switch” options: 

»» 

Output 01–08 

»» 

All Outputs 

Use the left selector to choose these. 

For each Output number selected, ‘01-08’ and ‘All’, there are Input sub-menu choices; 

»» 

Input 01–08 

Use the right selector to choose these and push to confirm your choice for both 

Select an Output number with the left selector and then select an Input number you wish to feed 

that output by turning the right selector. Push the right selector to select that combination. The 

display will blink to acknowledge your choice. This will immediately switch your Output to the Input 

selected. 

2. “Audio Switch” options: 

»» 

Output 01-08 plus All Outputs 


For each Output number selected, ’01-08’ and ‘All’, there are Audio Location sub-menu choices: 

»» 

HDMI 

»» 

External Analog 

»» 

External Digital 

Use the right selector to choose these and push to confirm choice. 

These correspond to which Audio signal type will be passed to the selected Output number from 

your previously selected Input number. 

3. “Volume Control Set Up” options: 

»» 


Use the left selector to choose Output number desired. 

Use the right selector to choose Volume level desired (00-99) and push to confirm choice. 

Continue for all Outputs you wish to change 

4. “Audio Output Set Up” options: 

»» 



For each Output number selected, ’01-08’ and ‘All’, there are Audio Output sub-menu choices: 

»» 

Digital 

»» 

Analog 


These correspond to the RCA connectors only and choose which format will be passed to the 

Output selected. 

5. “Audio Input Set Up” options: 

»» 

Input 01-08 plus All Inputs 


For each Input selected, ’01-08’ and ‘All’, there are Audio Input sub-menu choices; 

»» 

Digital 

»» 

Analog 


These correspond to the RCA connectors only and choose which format will be accepted by the 

Input selected.

10 11 

6. “EDID Set Up” options: 

»» 

Input 01-08 plus All Inputs 


For each Input selected, ’01-08’ and ‘All’, there are EDID Set Up sub-menu choices: 

»» 

HDMI Output 01 through 08 

»» 

CAT6/STP Output 01 through 08 

»» 

For each Input (source) selected with the left selector there is a choice to copy the EDID 

information from either the HDMI or CAT6/STP connected Output (display) using the right 

selector depending on which is connected. 

»» 

The Default choices (listed below) copy the EDID from a stored library of EDID configurations 

to the selected Input card 

»» 

Default EDID 1 - (1080i Video, 2ch PCM Audio) 

»» 

Default EDID 2 - (1080i Video, DTS/DOLBY Audio) 

»» 

Default EDID 3 - (1080i Video, DTS/DOLBY/HD Audio) 

»» 

Default EDID 4 - (1080p Video, 2ch PCM) 

»» 

Default EDID 5 - (1080p Video, DTS/DOLBY Audio) 

»» 

Default EDID 6 - (1080p Video, DTS/DOLBY/HD Audio) 

»» 

Default EDID 7 - (3D/1080p Video, 2ch PCM) 

»» 

Default EDID 8 - (3D/1080p Video, DTS/DOLBY Audio) 

»» 

Default EDID 9 - (3D/1080p Video, DTS/DOLBY/HD Audio) 

»» 

Default EDID 10 - (DVI 1280x1024 Video, No Audio) 

»» 


»» 


Use the right selector to choose these and push to confirm choice. You will receive a “Completed” 

message when successful, or a “Failed” message if unsuccessful. 

7. “TCP / IP” options: 

»» 

IP address 

»» 

Sub net Mask 

»» 

Port 

½½ 

The default IP address is; ‘192.168.000.233’ This can be changed to accommodate your 

particular configuration or controller. 

½½ 

The default Sub net mask is ‘255.255.255.000’ and may also be changed to accommodate your 

particular configuration. 

½½ 

The default Port number is ‘23’ 

Select the TCP/IP option by pressing the right selector. Highlight the group of numbers you wish to 

change by turning the left selector. Change the group of numbers using the right selector. Continue 

this procedure until all numbers are chosen. Press the right selector to enter the changes. You may 

then press the left selector to return to the previous menu if desired. 

8. “Factory Default” options: 

This option will return the unit to its Factory Default settings. Please see the list of default settings 

below. When this menu option is chosen, you will be presented with a choice of EDID’s from the 

default EDID library. Choose one of these default EDID’s (typically default 1-1080i 2Ch PCM) using 

the left selector, then press the right selector to confirm. The unit will then reset to the default 

configuration including the EDID you have chosen. 

Factory Default Settings: 

»» 

Input = 1 

»» 

Input Audio = Analog 

»» 

Output Audio = Analog 

»» 

Audio = HDMI 

»» 

Port = HDMI 

»» 

Output Volume = 50 

»» 

Output Bass = 12 

»» 

Output Middle = 12 

»» 

Output Treble = 12 

»» 

Output Balance = 20 

»» 

Output Delay = 00 

»» 

EDID = Choice of default EDID library 01-12 

(see menu EDID Set Up for a list of default EDID choices pg.10) 

»» 

TCP / IP = 192.168.0.233 

5. EDID Control 

EDID Control HDMI Handshaking 

EDID (Extended Display Identification Data) is a data structure provided by a digital display to 

describe its capabilities to a video source. This data is also known as a “handshake” and typically 

includes manufacture name and serial number, product type, resolutions supported by the display, 

display size, pixel mapping data, etc. 

In a one-to-one source-display system, the EDID process is relatively simple. However, HDMI 

matrix systems enabled by the Digital IQ Series products are far more sophisticated as a source 

may be selected by multiple displays- with a variety of EDID information provided- at any given time. 

Key Digital EDID Control allows the integrator to choose the handshake that will be provided to 

each source device of the system. The EDID handshake is relayed to the source from the Digital IQ 

matrix, not from any of the displays/output devices of the system. This handshake will always be 

the EDID information that the source device receives. 

EDID Control handshaking can be provided to each source independently, or to all sources 

simultaneously. 

The EDID information is provided to a source in any of three methods: 

½½ 

From the internal Default Library of EDID files located within the Digital IQ software 

½½ 

From a copy of the EDID provided by any display/output device connected via the HDMI output 

connection 

½½ 

From a copy of the EDID provided by any display/output device connected via the CAT6/STP 

output connection 

½½ 

Providing an EDID Handshake from the Default Library: 

The Default Library features generic EDID handshakes that are compatible with a majority 

of source equipment and meet a wide-spectrum of demands desired in a variety of 

application types. 

½½ 

The Default Library is subject to change as new standards and desired application updates are 

requested.

12 13 

½½ 

The EDID Control library can be revised on your Digital IQ matrix via a firmware update. To verify 

the Default Library of your unit’s firmware, use the RS-232 Help command (“H”). See the RS-232 

Control Codes sections for more information. 

»» 

Default Library EDID Control Table: 



Default EDID 3 - (1080i Video, DTS/DOLBY/HD Audio) 



Default EDID 6 - (1080p Video, DTS/DOLBY/HD Audio) 


Default EDID 8 - (3D/1080p Video, DTS/DOLBY Audio) 

Default EDID 9 - (3D/1080p Video, DTS/DOLBY/HD Audio) 




½½ 

After executing EDID Control handshaking for your system, it is recommended to observe video 

and audio performance in all zones. 

Providing a Default Library EDID handshake to a specified source: 

½½ 

Via RS-232 (recommended): 

»» 

“SPCEDIDxxDyy” 

Where xx = input card number or “A” (all) 

Where yy = default library selection 

»» 

After giving the source device a few moments to adjust its output, you may verify the 

handshake has been properly received and the source has complied with the handshake by 

using the RS-232 Input status command “STPIxx”. 

½½ 

Via the Front Panel: 

»» 

In the Main Menu, select “EDID Setup” 

»» 

Scroll to the Input Source (or all sources) that you wish to provide the Default EDID to. Press 

the selector knob to proceed. 

»» 

Scroll to the desired Default EDID number, using the Default EDID table or descriptive text as 

a reference. Press the selector knob to proceed and execute the EDID Control handshake. 

How to provide a copy of the EDID of any connected (HDMI or CAT6/STP) display/ 

output device 

½½ 

Digital IQ products are able to poll any connected output device for its EDID information and 

provide that EDID to the specified source. 

½½ 

It is possible to poll any output device connected via the HDMI or CAT6/STP RJ45 output 

connections 

½½ 

An exact copy of the EDID file provided by the specified output device is relayed to the specified 

source. 

½½ 

This EDID file is not stored in the Digital IQ unit’s software. Therefore, it is not possible to 

relay the copy EDID of an output device unless it is connected at the time of prompting the 

handshake. 

½½ 

Bear in mind that relaying an exact EDID handshake from one of the connected output devices 

may result in optimum performance in that respective output zone, but may also result in 

incompatibilities in other zones viewing that source with different display equipment. 

½½ 

After executing EDID Control handshaking for your system, it is recommended to observe video 

and audio performance in all system zones. 

How to provide a copy EDID of any connected display/output device 

½½ 

Via RS-232 (recommended): 

»» 

“SPCEDIDxxH/Cyy” 

Where xx = input card number or “A” (all) 

Where yy = Output card number (01-08) 

Where H or C = output device connected via HDMI (H) or CAT6/STP (C) output connection 

»» 

After giving the source device a few moments to adjust its output, you may verify the 

handshake has been properly received and the source has complied with the handshake by 

using the RS-232 Input status command “STPIxx”. 

½½ 

Via the Front Panel: 

»» 

In the Main Menu, select “EDID Setup” 

»» 

Scroll to the Input Source (or all sources) that you wish to provide the copy EDID to. Press 

the selector knob to proceed. 

»» 

Scroll to the output number of the desired output device from which the EDID will be copied. 

Press the selector knob to proceed and execute the EDID Control handshake. 

6. Advanced Switching Options 

Digital IQ Series products deliver fully-independent matrix switching of video and audio. 

Additionally, there are multiple audio connections on each input card; HDMI, L/R Analog Audio 

and PCM Digital Audio. The L/R Analog and PCM Digital audio connections are referred to as the 

external audio connections. 

Each switching selection satisfies three variables: 

½½ 

Video Input Card 

½½ 

Audio Input Card 

½½ 

Audio Input Location (ie. HDMI, L/R Analog, or PCM Digital)

17 18 19 20 21 22 23 24 

25 26 27 28 29 30 31 32 

14 15 

99 

A switching selection example which chooses Video on Input Card 01, and Audio on Input Card 01’s 

L/R Analog connection 

Although some Advanced Switching Options “SPCIR0917” 

are achievable via IR or Front-Panel control, it is 

IR 

recommended IR that you control your Digital 

“SPCIR1018” 

IQ via RS-232 or TCP-IP if your application will utilize an 

“SPCRSS1119” 

RS-232 

CAT6/STP 

Advanced Switching 


Option. 

KD-CATHD500Rx 

Systems that do not require independent video and audio matrix switching or selection of the 

external audio input connections will typically utilize the “SPOxxSIyy” RS-232 switching command. 

CAT6/STP 

For systems that do require the available Advanced Switching Options, there are a variety of 

switching commands available that are detailed in this section. 


SPOxxSIyy 

CAT6/STP 

»» 

Where xx = Output Card Number or “A” (all) 


»» 

Where yy = Input Card Number (video & audio) 

The Advanced Switching Options are very useful in a variety of sophisticated A/V systems, and 

below we examine three application requirements that epitomize their utility: A system requiring 

Independent Video & Audio Matrix Switching, a system featuring DVI Sources with Separate 

Audio, and a system requiring a variety of audio formats selected by the various output zones 

(referred KD-CATHD500Rx to as AudioFlex KD-CATHD500Rx Systems) 


2 

IR 


»» 

Where yy = Input Card Number (audio) 

RS-232 

3 

IR 

IR 

IR 


Independent Video and Audio Matrix Switching 

IR 


IR 


Independent Video and Audio Matrix Switching is possible and is achieved by selecting Video from 

any specified source, while selecting Audio from a separate source or location. 

IR 

SPOxxSVyy 

»» 



»» 

Where yy = Input Card Number (video) 

“SPCIROM00003F00” 

SPOxxSAyy 

»» 


Example: To select video from source 01 and select audio source 02 on all outputs: 

»» 

“SPOASV01” 

1 

»» 

“SPOASA02” 

2 

IR 

RS-232 

3 

IR 


1 

DVI Sources with Separate Audio 

The external audio input connections are ideal for integrating sources that do not feature audio 

embedded on the video connection. For example, DVI sources are able to be fully integrated by 

connecting DVI to the HDMI input connection (using DVI to HDMI adapters where necessary) and 

the respective audio to the L/R Analog Audio input connection. 

First, an Audio-Video Association should be made the default for the specified source: 

SPIxxAAyyz 

»» 

Where xx = Input Card Number (video) 

»» 

Where yy = Input Card Number (audio) 

»» 

Where z = Input Location (audio) 

»» 

1 = HDMI 

»» 

2 = External PCM Digital 

»» 

3 = External L/R Analog 

»» 

Note: Audio-Video Associations are typically only made during initial setup. 

Then, switching can be performed using the Audio-Video Association switching command: 

SPOxxSByy 

»» 


»» 

Where yy = Input Card Number (video & associated audio) 

A DVI video source can be connected via HDMI, while the audio from the source is connected 

via L/R Analog (depicted above) or PCM Digital Audio. 

Example: To establish an Audio-Video Association for a DVI source connected to input 03 with DVI 

Video and L/R Analog Audio during initial setup, and then to select this source on output 05: 

»» 

“SPI03AA033” 

»» 

“SPO05SB03”

16 17 

AudioFlex Systems (systems requiring a variety of audio formats) 

Digital IQ’s external audio connections enable systems in which multi-channel audio is able to be 

routed to capable zones, while 2-channel audio is routed to zones with this requirement. 

This sort of system is possible with the following setup in place: 

½½ 

The source device has received an EDID handshake supporting multi-channel audio (ie. Default 

EDID 2, 3, 5, 6, 8 or 9 or an EDID copy from a connected AV Receiver). 

½½ 

The source features at least two audio output connections: 

»» 

Multi-channel audio is output from the source’s HDMI connection and is connected to the 

HDMI input connection on the Digital IQ’s input card. 

»» 

2-channel audio is output from the source’s L/R Analog or PCM Digital (recommended) 

output and is connected via RCA to the Digital IQ’s external audio connection on the 

respective input card. Note that it is often necessary to enter your source devices Digital 

Audio setup menu to ensure that the PCM Digital Audio output is limited to 2-channel. 

»» 

Selection of the source by a multi-channel capable zone chooses video from the HDMI input 

connection and audio from the HDMI input connection 

»» 

Selection of the source by a 2-channel capable zone chooses video from the HDMI input 

connection and audio from the external audio input connection (L/R Analog or PCM Digital) 

SPOxxSyyz 

»» 


»» 

Where yy = Input Card Number (video & audio) 

»» 

Where z = Input Location (audio) 

»» 

1 = HDMI 

»» 

2 = External PCM Digital 

»» 

3 = External L/R Analog 

Two sources connected via HDMI and PCM Digital Audio. For AudioFlex systems, the HDMI 

connections carry video + multi-channel audio, while the PCM Digital audio connection carries 

2-channel audio 

Example: A system in which Output Zone 01 supports multi-channel audio while Output Zone 02 

requires 2-channel audio and both zones would like to select source 08. 

Switching selection by the multi-channel capable zone: 

SPO01S081 

»» 

Where xx = 01 = Output Zone which supports multi-channel audio 

»» 

Where yy = 08 = Input Card Number (video & audio) 

»» 

Where z = HDMI Input Audio Location 

Switching selection by the zone requiring 2-channel audio: 

SPO02S082 

»» 

Where xx = 02 = Output Zone which requires two-channel audio 

»» 

Where yy = 08 = Input Card Number (video & audio) 

»» 

Where z = PCM Digital Input Audio Location 

7. Audio Distribution Features 

Digital IQ features external audio output connections that are active in many cases and are ideal 

for integrating with amplifiers, multi-zone audio distribution systems, or AV Receivers. The external 

audio outputs feature a variety of audio control options such as Volume Control, Balance, Multi- 

Band EQ, and Lip-Sync Control that is able to add up to 600ms delay. 

Refer to the following Audio Processing Chart to determine the activity of the external audio output 

connections in your application: 

Input RCA Digital Out RCA Analog Out HDMI Out Audio Controls 

HDMI 2CH LPCM Yes Yes Yes Yes 

HDMI MULTI CH 

LPCM 

No No Yes No 

DOLBY/DTS Yes No Yes No 

HD Audio No No Yes No 

Configuring the Audio Distribution Connections 

Although it is possible to configure much of your Digital IQ’s Audio Distribution settings via the front 

panel, it is recommended to do so via RS-232 because of the superior status feedback possible. 

Please note that there is a single audio processor per output card, therefore any feature configured 

applies to the respective output card’s HDMI, RJ45, and External Audio connections. 

½½ 

To configure the External Audio RCA connection as L/R Analog (Default) or PCM Digital: 

SPOxxRCAy 

»» 


»» 

Where y = L/R Analog or PCM Digital 

»» 

1 = L/R Analog 

»» 

2 = PCM Digital

18 19 

½½ 

To mute audio: 

SPOxxAE/D/T 

»» 


»» 

Where E/D/T = Enable/Disable/Toggle, respectively 

½½ 

To control output audio volume: 

SPOxxAVyy 

»» 


»» 

Where yy = 00-99, U (up), or D (down) 

½½ 

To control output audio balance: 

SPOxxAByy 

»» 


»» 


½½ 

To control output audio bass frequency: 

SPOxxALyy 

»» 


»» 


½½ 

To control output audio mid frequency: 

SPOxxAMyy 

»» 


»» 


½½ 

To control output audio treble frequency: 

SPOxxAHyy 

»» 


»» 


½½ 

To control output audio delay: 

SPOxxADyy 

»» 


»» 


»» 

Note: each delay increase/decrease represents +/-6ms, respectively 

8. Control Routing via Digital IQ 

In addition to Audio and Video matrix switching, Digital IQ products are able to route IR and RS-232 

commands to peripheral devices via the 3.5mm connections on each card slot and via the IR and 

RS-232 connections on the KD-CATHD500Rx. 

Utilizing Digital IQ’s Control Routing feature significantly extends the reach of your control system 

– adding up to 32 control ports to your control system without requiring additional master control 

units. 

There are two methods of Control Routing: Card to Card, and Main to Card / Card to Main. 

It is possible to utilize both control routing methods within your Digital IQ matrix, but keep in 

mind that settings may interfere with each other and result in undesired control source - control 

destination connections. 

For seamless integration that fully-utilizes the Digital IQ control routing features, Key Digital 

Compass Control system is recommended. The Compass Control RS-232 and TCP-IP Manager 

Databases feature individual drivers for independent IR and RS-232 matrix switching. 

A look at the 3.5mm, RJ45, and Main ports and their respective number assignments utilized in 

control routing. Note that in some custom configurations, card slots 01-08 may be populated with 

Input cards and therefore would feature RJ45 ports 

01 02 03 04 

17 18 19 20 21 22 23 24 

IR 

IR 

RS-232 


05 06 07 08 09 

10 11 12 13 14 15 16 

25 26 27 28 29 30 31 32 




CAT6/STP 

00-IR 

00-232 

Theory: Card to Card Control Routing, and Main to Card / Card to Main Control Routing 

Card to Card Control Routing works much like a traditional matrix switch; control sources 

(inputs) are able to be routed to destinations (outputs). Digital IQ control routing is fully bidirectional, 

enabling any control connection to be configured as a control input or destination, not 

simply limiting the input connections as control sources and the output connections as control 

destinations. The control sources (inputs) and control destinations (outputs) can be connected to 

any 3.5mm control port or control port on the KD-CATHD500Rx balun. A control source is able to 

be sent to one or many control destinations just a true matrix switch enables. 

Card to Card Control Routing in Brief: 

½½ 

IR/RS-232 signals from Control System to I/O Card slot are routed to specified I/O destination 

½½ 

Benefit: Consolidation of IR/RS-232 signals onto single CAT6 wire to I/O 3.5 ports or RJ45, 

establishing of full bi-directional channels. 

½½ 

Con: Any Card to Card combination is possible, but may require many commands to establish 


98 

99

20 21 

00-IR 

98 

Main to Card / Card to Main Control Routing utilizes a technique referred to as “masking”. Two 

masks are available; an Input Mask and an Output Mask. 

In order to maintain a Card to Card control routing system simultaneously with a Control Masking 

system, each card is able to be included or excluded in the control mask with the IR or RS-232 

Mask Enable commands. 

Output Control Masking enables a highly-customizable, large configuration IR or RS-232 

distribution block. A control signal fed into the 3.5mm port (IR) or DB-9(RS-232) on the Digital 

IQ’s Main Board is distributed to any number of destinations. All, one, or any combination of 

destinations is determined by a masking command that is sent via RS-232 or TCP-IP to the Digital 

IQ preceding the control signal that is to be distributed. 

Input Control Masking is available for IR only and enables any combination of 3.5mm or RJ45 

ports on the card slots to be routed to the Main Board 3.5mm. Much like Output Control Masking 

can be compared to a highly-customizable control distribution block, Input Control Masking can be 

compared to a highly-customizable control switch. 

Card to Main / Main to Card Control Routing in Brief: 

½½ 

Signals from Control System to/from the main control ports are routed to/from specified I/O 

3.5 ports or RJ45 

½½ 

Benefit: Any specified combination of destinations (Output Control Masking) or control sources 

(Input Control Masking) are granted connection to the Digital IQ’s main control ports via a 

minimal amount of commands. 

½½ 

Con: Programming can be complex, as commands featuring Hex values may need to be issued 

frequently depending on how dynamic the system is. 

Implementing the Control Routing Features: 

How to Set Card to Card Control Routing (IR & RS-232) 

1. Configure control format (IR or RS-232) type for each I/O card’s 3.5mm port: 

»» 

a. “SPCCSh1h2h3h4” 

»» 

i. Where h1 is a binary value for slots 16-13 

»» 

ii. Where h2 is a binary value for slots 12-9 

»» 

iii. Where h3 is a binary value for slots 8-5 

»» 

iv. Where h4 is a binary value for slots 4-1 

»» 

b. Note: Default is SPCCS0000, meaning all I/O cards are configured for IR format 

»» 

c. Each KD-CATHD500Rx balun features both IR and RS-232 connections, therefore 

configuring the control format of each RJ45 output is not necessary. 

»» 

d. Hex Key: 0 = IR 1 = RS-232 

Hex Binary Hex Binary Hex Binary Hex Bin 

0 0000 4 0100 8 1000 C 1100 

1 0001 5 0101 9 1001 D 1101 

2 0010 6 0110 A 1010 E 1110 

3 0011 7 0111 B 1011 F 1111 

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 00-232 

»» 

Determine source and destination for control signal(s): 

17 18 19 20 21 22 23 24 25 26 27 28 

»» 

a. For IR Control Routing Systems: “SPCIRxxyy” 

29 30 31 32 

»» 

i. Where: xx = Destination (01~8 = CAT01~CAT8, 9~24 = 3.5mm 01~16) 

»» 

ii. yy = Source (01~8=CAT01~CAT8, 9~24 = 3.5mm 01~16, 00 = Serial IR, 98=Sensor, 99 

99=TCP-IP 

»» 

b. For RS-232 Control Routing Systems: “SPCRSSxxyy” 

»» 

i. Where: xx = Destination (01~8 = CAT01~CAT08, 09~24 = 3.5mm 01~16) 

»» 

ii. yy = Source (01~8=CAT01~CAT08, 9~24 = 3.5mm 01~16, 00 = Main DB9, 99=TCP-IP 

2. Send IR/RS-232 command to be routed 

3. (Optional) Disconnect all source-destination relationships: 

»» 

a. For IR Control Routing Systems: “SPCIRA97” 

»» 

i. Where A = All destinations 

»» 

ii. Where 97 = Disconnect from source 

»» 

b. For RS-232 Control Routing Systems: “SPCRSSA97” 

»» 

i. Where A = All destinations 

»» 

ii. Where 97 = Disconnect from source 

A Card to Card Control Routing example with IR and RS-232 Control Routing taking place 

IR 

IR 

RS-232 


IR 




How to Set Main to Card/Card to Main Control Routing 

IR 

KD-CATHD500Rx KD-CATHD500Rx KD-CATHD500Rx KD-CATHD500Rx 

»» 

i. Where h1 is a binary value for slots 16-13 

IR 

CAT6/STP 

CAT6/STP 

CAT6/STP 




1. Configure control format (IR or RS-232) type for each I/O card’s 3.5mm port: 

»» 

a. “SPCCSh1h2h3h4” 

»» 

ii. Where h2 is a binary value for slots 12-9 

»» 

iii. Where h3 is a binary value for slots 8-5 

»» 

iv. Where h4 is a binary value for slots 4-1 

»» 

c. Note: Each KD-CATHD500Rx balun features both IR and RS-232 KD-MC2500 connections, therefore 

configuring the control format of each RJ45 output is not necessary. 


IR 


IR 


»» 

b. Note: Default is SPCCS0000, meaning all I/O cards are configured for IR format. 

IR 

IR 


KD-MC2500

00-IR 

22 98 23 

01 02 03 04 

05 06 07 08 09 

10 11 12 13 14 15 16 

00-232 

2. Route 3.5mm and RJ45 ports to the main IR or RS-232 ports: 

»» 

a. To route all 3.5mm and RJ45 ports to the Main IR or RS-232 port: 

»» 

i. IR: SPCIRA00 

»» 

ii. RS-232: SPCRSA00 

»» 

iii. Note: this command may interrupt existing card to card routes in place 

»» 

b. To avoid interruption of existing card to card routes, route individually: 

»» 

i. IR: SPCIRxx00 

»» 

1. Where: xx = Destination (01-16 = CAT01-CAT16, 17-32 = 3.5mm 01-16) 

»» 

2. Where 00 = Serial IR 

»» 

ii. RS-232: SPCRSxx00 

»» 

1. Where: xx = Destination (01-16 = CAT01-CAT16, 17-32 = 3.5mm 01-16) 

»» 

2. Where 00 = Main DB9 

3. Choose 3.5mm and RJ45 ports to which mask applies: 

»» 

a. IR Mask Enable command: 

»» 

i. SPCIROMENh1h2h3h4h5h6h7h8 

»» 

b. RS-232 Mask Enable command: 

»» 

i. SPCRSOMENh1h2h3h4h5h6h7h8 

»» 

c. Hex values for the above commands: 

»» 

i. h1 is a hex value for 3.5mm control destinations on slots 16-13 

»» 

ii. h2 is a hex value for 3.5mm control destinations on slots 12-9 

»» 

iii. h3 is a hex value for 3.5mm control destinations on slots 8-5 

»» 

iv. h4 is a hex value for 3.5mm control destinations on slots 4-1 

»» 

v. h5 is a hex value for RJ45 control destinations on slots 16-13 

»» 

vi. h6 is a hex value for RJ45 control destinations on slots 12-9 

»» 

vii. h7 is a hex value for RJ45 control destinations on slots 8-5 

»» 

viii. h8 is a hex value for RJ45 control destinations on slots 4-1 

4. Establish Output/Input Mask: 

»» 

a. Hex Key: 0 = Connection Disabled 1 = Connection Enabled 

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 

»» 

v. h5 is a hex value for RJ45 control destinations on slots 16-13 

»» 

vi. h6 is a hex value for RJ45 control destinations on slots 12-9 

»» 

vii. h7 is a hex value for RJ45 control destinations on slots 8-5 

»» 

viii. h8 is a hex value for RJ45 control destinations on slots 4-1 

»» 

c. IR Output Masking Command: 

»» 

i. SPCIROMh1h2h3h4h5h6h7h8 

»» 

d. RS-232 Output Masking Command: 

»» 

i. SPCRSOMh1h2h3h4h5h6h7h8 

»» 

e. Hex values for the below Input Masking command: 

»» 

i. h1 is a hex value for 3.5mm control sources on slots 16-13 

»» 

ii. h2 is a hex value for 3.5mm control sources on slots 12-9 

»» 

iii. h3 is a hex value for 3.5mm control sources on slots 8-5 

»» 

iv. h4 is a hex value for 3.5mm control sources on slots 4-1 

»» 

v. h5 is a hex value for RJ45 control sources on slots 16-13 

»» 

vi. h6 is a hex value for RJ45 control sources on slots 12-9 

»» 

vii. h7 is a hex value for RJ45 control sources on slots 8-5 

»» 

viii. h8 is a hex value for RJ45 control “SPCIR0917” sources on slots 4-1 

IR 

»» 

f. IR Input Masking Command: 

IR 


RS-232 

»» 

i. SPCIRIM h1h2h3h4h5h6h7h8 “SPCRSS1119” 

CAT6/STP 


5. Send IR/RS-232 command to be distributed from main control KD-CATHD500Rx 

ports (output masking), 

or routed to main control ports (input masking) 

CAT6/STP 

6. (Optional) Disconnect all destinations: 


»» 

a. IR Output Masking: SPCIROM00000000 

»» 

b. RS-232 Output Masking: SPCRSOM00000000 

CAT6/STP 

»» 

c. IR Input Masking: SPCIRIM00000000 


»» 

d. RS-232 Input Masking: SPCRSIM00000000 

A Main to Card Control Routing example in which a command is distributed to RJ45 outputs 

99 

Hex Binary Hex Binary Hex Binary Hex Bin 

0 0000 4 0100 8 1000 C 1100 


IR 


IR 


IR 


IR 


IR 


IR 

1 0001 5 0101 9 1001 D 1101 

2 0010 6 0110 A 1010 E 1110 

3 0011 7 0111 B 1011 F 1111 

IR 

»» 

b. Hex values for the below Output Masking commands: 

»» 

i. h1 is a hex value for 3.5mm control destinations on slots 16-13 

»» 

ii. h2 is a hex value for 3.5mm control destinations on slots 12-9 

»» 

iii. h3 is a hex value for 3.5mm control destinations on slots 8-5 

»» 

iv. h4 is a hex value for 3.5mm control destinations on slots 4-1 





1 

RS-23 

IR 

R 

IR

24 25 

IR 

IR 

9. Digital IQ Control Routing with Compass Control ® RS-232 

System 





Key Digital’s Compass Control ® System features drivers to maximize the KD-CATHD500Rx 

capacity and ease of use 

for Digital IQ Control Routing. Each control routing matrix (IR and RS-232) features an independent 

CAT6/STP 

driver in the Key Digital RS-232 Manager database, essentially treating each independent routing 

matrix as its own independent device. The drivers are named KD-HD8x8BT_IR KD-CATHD500Rx and 

KD-HD8x8BT_RS. 

CAT6/STP 

Integrating Digital IQ with Compass Control utilizes a method of Control Routing that is a hybrid 

of the Card to Card and Main to Card methods because it takes advantage KD-CATHD500Rx of the KD-MC2500’s 

(Compass Control Master Controller) flexible port configuring which does not limit each port’s 

protocol to the protocol of the single assigned device. Instead, the protocol of each KD-MC2500 

port is determined by the device that the control signal is intended for and multiple devices can be 

assigned to any port. For example, a single port can issue an RS-232 command at 9600 bits per 

second, and then issue the next command at 57,600. It is important to ensure that proper delays 

KD-CATHD500Rx KD-CATHD500Rx KD-CATHD500Rx KD-CATHD500Rx KD-CATHD500Rx KD-CATHD500Rx 

have been added to the sequence. 

The flexibility of the KD-MC2500 ports enables a minimal amount of connections from the master 

controller to the Digital IQ. Providing three ports from the master controller to the Digital IQ is 

recommended, and will provide connections to control the Digital IQ’s independent matrix layers 

(Video, Audio, IR, RS-232), external IR devices (via control routing), and external IR RS-232 devices (via 

control routing). 


Recommended connectivity between Digital IQ and KD-MC2500: 

1) Is a DB-9 to DB-9 Straight cable, providing control over the Digital IQ, “SPCIROM00003F00” 

2) Is a 3.5mm Mono which will be the IR source for control routing to external IR devices 

3) Is a 3.5mm Stereo which will be the RS-232 source for control routing to external RS-232 devices 

IR 


IR 

IR 

IR 

CAT6/STP 

IR 

IR 

»» 

“KD-HD8x8BT_IR ” is the connection that carries the IR signals intended to 

be routed to IR destinations. In the Compass Navigator Control Connectivity Tree, the 

“KD-HD8x8BT_IR ” device can be connected to the Main IR or any of the eight 

3.5mm multifunction ports of the KD-MC2500 (as long as the ports are pre-configured to 

IR) and doing so will create a tree expansion for 32 IR destinations 

Brand: Key Digital → Device Type: IR Router → KD-HD8x8BT_IR 


1 

2 

IR 

RS-232 

3 

Adding the KD-HD8x8BT_IR and KD-HD8x8BT_RS to your Compass Navigator System 

Configuration Device Library will add two device icons: 

»» 

Adding KD-HD8x8BT_IR inserts “KD-HD8x8BT_IR ” and “KD-HD8x8BT_IR ”. 

»» 

“KD-HD8x8BT_IR ” carries the RS-232 command determining IR destination 

and IR source matrix switching and is depicted with connection number 1 in the 

above diagram. In the Compass Navigator Controlling Flow Connectivity Tree, the 

“KD-HD8x8BT_IR ” device should be connected to the Main RS-232 port 

of the KD-MC2500. 

2 

IR 

RS-232 

3 

1 

Adding “KD-HD8x8BT_IR ” to the Main IR Port 

(“IRout-60”) provides 32 additional IR connectivity points. 

Ports 13 and 14 (RJ45 ports on Outputs 5 and 6, respectively) 

are routing control to the “Lab” and “Lobby” displays.

26 27 

»» 

Adding KD-HD8x8BT_RS inserts “KD-HD8x8BT_RS ” and “KD-HD8x8BT_RS ”. 

»» 

“KD-HD8x8BT_RS ” carries the RS-232 command determining RS-232 

destination and RS-232 source matrix switching and is depicted with connection number 

1 in the above diagram. In the Compass Navigator Controlling Flow Connectivity Tree, 

the “KD-HD8x8BT_RS ” device should be connected to the Main RS-232 port of 

the KD-MC2500. 

»» 

“KD-HD8x8BT_RS ” is the connection that carries the RS-232 signals intended to 

be routed to RS-232 destinations. In the Compass Navigator Control Connectivity Tree, 

the “KD-HD8x8BT_RS ” device can be connected to the any of the eight 3.5mm 

multifunction ports of the KD-MC2500 (as long as the ports are pre-configured to RS- 

232) and doing so will create a tree expansion for 32 RS-232 destinations. 

Brand: Key Digital → Device Type: RS232 Router → KD-HD8x8BT_RS 

Adding “KD-HD8x8BT_RS ” to the Main IR Port (“RS-1”) provides 32 additional RS-232 

connectivity points. Ports 9, 10, 11, and 12 (RJ45 ports on Outputs 1, 2, 3, and 4, respectively) are 

routing control to the “Board Room” and “Conference Room”, “Cafeteria”, and “Training” displays.

28 29 

10. IR Remote Command List 

Below are listed some of the most common remote commands. A complete list of all IR Remote 

commands can be found at the Key Digital website www.keydigital.com 

The following commands assume an 8x8 configuration. 

»» 

XX = Output Card Number (Range 01~08) [Outputs 1-8] 

»» 

YY = Input Card Number (Range 01~08) [Inputs 1-8] 

»» 

ZZ = Numeric Keypad Number (Range 00~99) 

»» 

Arrows = Up – Down – Left - Right 

»» 

Power On = “Power On” 

»» 

Power Off = “Power Off” 

Switching Commands 

Switching Video / HDMI Output to Input 

»» 

To Switch Output and Input cards by numeric keypad: 

“R1 – XX – Video Mode – YY” 

»» 

Example: To switch Input 3 to Output 2 press; “R1–02–VideoMode–03 

»» 

Note: For basic systems utilizing the HDMI input connections for Video & Audio, the above 

switching command applies can be used to switch Video & Audio together. 

Switch Audio Input Source Location 

»» 

To Switch Audio source of Output Card by numeric keypad: 

“R1 – XX – Audio Mode – ZZ” 

»» 

Where ZZ is: 01 = HDMI 

02 = RCA COAX SPDIF 

03 = RCA ANALOG 

»» 

Example: To switch the audio source for output 2 to RCA Analog press: 

“R1–02–AudioMode–02” 

Front Panel Commands Using Remote 

The Remote can be used to navigate through the front LCD display options. 

½½ 

Use the Left and Right Arrow keys to choose options normally made by rotating the Left Selector. 

½½ 

Use the Up and Down Arrow keys to choose options normally made by rotating the Right Selector. 

½½ 

Use the ‘R2’ button to enter choices normally made by pushing the Right Selector. 

½½ 

Use the ‘R4’ button to enter choices normally made by pushing the Left Selector. 

11. RS-232 Control Codes 

»» 

Baud Rate: 57600 

»» 

Data Bits: 8 

»» 

Parity: None 

»» 

Stop Bits: 1 

»» 

Flow Control: None 

»» 

Carriage Return: Required 

»» 

Line Feed: Required 

Initial Setup & Operation via RS-232 

Familiarize yourself with RS-232 help “H” and status “STA” commands to maximize product 

understanding. A complete list of RS-232 Commands can be found at Key Digitals website: 

www.keydigital.com 

1. Insert HDMI cables into card slots 1 through 8 

»» 

Slots 1-8 are labeled Rx, and are Input Card Slots. 

»» 

Slots 9-16 are labeled Tx, and are Output Card Slots. 

2. If integrating your output via KD-CATHD500Rx CAT6/STP Receiver Balun(s) 

»» 

Both HDMI and CAT6/STP Outputs are active on Output Card Slots, therefore no 

configuration is necessary to active the CAT6/STP Output for each Tx Card Slot. 

3. Establish an HDMI Handshake for Each Source 

»» 

Copy EDID to Rx Card (xx) from Tx Card (yy) using ‘SP C EDID xx H/C/D yy’ 

»» 

Where xx = Card Slot # of desired Input (01-08) 

»» 

Where H = HDMI, C = CAT6/STP or D = Default EDID Library (01-12) 

»» 

Where yy = Card Slot of # of desired Output (if H or C) (01-08) 

»» 

-------------------OR--------------------- 

»» 

Where yy = Default EDID library # (01-12) (if D) *see Default EDID list pg.10 

4. Matrix Switching via RS-232 

»» 

Use RS-232 command “SP Oxx SI yy” 

»» 

xx = Card Slot # of desired Output 

»» 

yy = Card Slot # of desired Input 

½½ 

NOTE: Spaces between RS-232 commands are shown for clarity only. 

Actual RS-232 commands do not need any spaces between characters. 

RS-232 Commands 

RS-232 cable pin out 

Pin 5 – Ground 

Pin 3 – Receive 

Pin 2 – Transmit 

Command 

Name 

Command Value Description 

Status STA Gives full listing of Unit’s Status 

Help H Gives full listing of RS-232 Commands 

Power Off 

Power On 

PF 

PN

30 31 

Set RCA Audio 

Input type 

Set Output to 

Video Input 

Set Audio Input 

Source Location 

Set Output 

Volume 

Input and Output numbers assume an 8x8 configuration. 

Values for Commands: 

Inputs: yy = 01-08 or A = All, U = Up, D = Down 

Outputs: xx = 01-08 or A = All, U = Up. D = Down 

System Input Setup Commands, xx = [01-08, A], (A=All): 

SPIxxRCAy 

xx = Input number 

y = RCA Audio 

type (1-Analog, 

2-Digital) 

To set which Audio input type will be active. 

Example: To set RCA input number 2 to Analog, 

issue the command: ‘SPI02RCA1’ 

Example: To set ALL RCA inputs to Analog, issue 

the command; ‘SPIARCA1’ 

Example: To set RCA input number 2 to Digital, 

issue the command; ‘SPI02RCA2’ 

System Output Setup Commands, xx = [01-08, A], (A=All): 

SPOxxSIyy 

SPOxxSAyy 

SPOxxAVyy 

xx = Output 

number (01-08) 

yy = Input number 

(01-08) or [U, D] 

(U=Up, D=Down) 

xx = Output 

number 

yy = choice of 

Audio Input type 

desired, routed to 

that Output. 

(01-HDMI, 

02-EXT PCM, 

03- EXT ANALOG) 

xx = Output 

number 01-08 

or A (for All) 

yy = Volume value 

00-99 

System Control Setup Commands: 

To switch Video Inputs to an Output. 

Example: To switch Video at input 2, to output 6, 

issue the command; ‘SPO06SI02’ 

Example: To step through each input going 

up through the inputs, issue the command; 

‘SPO01SI(U)’, each time this command is issued, 

the selected output (1 in this case) will step through 

the inputs in ascending order starting with the 

presently selected input.To step through the inputs 

in descending order from the presently selected 

input, use ‘SPO01SI(D)’. (Do not add parentheses). 

*NOTE: the above parameters are for an 8x8 

configuration. 

To set which Audio format is routed to which 

Output. 

Example: To set output 6 to route External Analog 

Audio, issue the command; 

‘SPO06SA03’ 

NOTE: This command must be issued in concert 

with the above switching command for Video only. 

To set the Output Volume per Output number 01- 

08 or ALL outputs. 

Example: To set Output 6 to 60, issue the 

command; ‘SPO06AV60’ “ 

Copy EDID 

information to 

Rx card slot, 

from Tx card 

slot yy via 

HDMI/CAT6 ult 

EDID library 

Front Panel 

Buttons 

Reset to Factory 

Defaults 

SP C EDID 

xx H/C/D yy 

xx = Input card 

number (01-08), 

H = HDMI, 

C = CAT6/STP, 

D = Default EDID 

library 

yy = (01-08), 

01-08 Output card 

number when ‘H’ 

/ ‘C’ is selected 

–OR- 

(01-12) Default 

EDID library when 

‘D’ is selected. 

SPCFBE/D E = Enabled / 

D = Disabled 

SPCDFxx 

xx = 01-12 and 

represents the 

default EDID 

choice desired 

after reset. (See 

EDID Set Up 

options for default 

EDID choices) 

To copy the EDID information from an Output card 

(display), to an Input card (source). 

Example: To copy the EDID information from HDMI 

Output 2, to HDMI Input 4, issue the command; 

‘SPCEDID04H02’ 

Example: To copy the EDID information from 

CAT6/STP Output 2, to HDMI Input 4, issue the 

command; ‘SPCEDID04C02’ 

Example: To load ‘DEFAULT2’ EDID library for Input 

card 3, issue the command; ‘SPCEDID03D02’ 

Below are the Default EDID library choices when 

selecting ‘D’ as a variable: 



Default EDID 3 - (1080i Video, DTS/DOLBY/HD 

Audio) 



Default EDID 6 - (1080p Video, DTS/DOLBY/HD 

Audio) 


Default EDID 8 - (3D/1080p Video, DTS/DOLBY 

Audio) 

Default EDID 9 - (3D/1080p Video, DTS/DOLBY/ 

HD Audio) 




To Enable or Disable the front panel buttons. 

Example: To Disable the front panel buttons, issue 

the command; ’SPCFBD’ 

To reset factory default settings by type. 

Example: To reset to 1080p HD Audio EDID, issue 

the command; ‘SPCDF06’ 

Please see our website product page for a complete list of all RS-232 commands: 

www.keydigital.com

32 33 

12. Firmware Update Wizard 

5. Select Auto Update selection box, and then begin the firmware update by selecting Next 

Digital IQ units are firmware upgradeable via USB. Connecting your Digital IQ unit to your PC will 

open the KD-HD8x8BT Firmware Download Wizard, a device manager in which you are able to 

check and adjust firmware and IP settings. 

1. Toggle Operation Mode switch to “Program” position 

Note: Program position is only utilized during firmware updates. 

2. Connect the Digital IQ unit to your PC via USB to automatically open the KD-HD8x8BT 

Firmware Download Wizard 

3. Select Download, in the KD-HD8x8BT Wizard Home Page 

6. Observe status of the firmware update through completion 

4. Wait for confirmation that the PC has established a connection with the Digital IQ unit 

7. Select Finish to close 

8. Return Operation Mode switch to “Normal” position

34 35 

13. Specifications 

»» 

Video Output Interface (HDMI Output Card): 

»» 

Features both HDMI and CAT6/STP(RJ45) outputs, and provides both simultaneously. 

»» 

Supports HDMI Advanced Features: 3D, 4K Resolution 

»» 

CAT6/STP(RJ45) works only with KD-CATHD500Rx Balun and HDMI with 

KD-CATHD150 (Tx and Rx) Baluns 

»» 

Audio Input Interface (HDMI Input Card): 

»» 

Supports both PCM and Analog Stereo Audio inputs. The PCM Input shares the same 

RCA connector as Left Analog stereo and only one of these audio inputs / formats can 

be selected at a time. 

»» 

The Analog Stereo Audio input is processed at 48kHz sampling rate. 

»» 

Audio Output Interface (HDMI Output Card): 

»» 

Supports both PCM and Analog Stereo Audio Outputs. The PCM Output shares the 

same RCA connector as Left Analog stereo and only one of these audio outputs / format 

types can be selected at a time. 

»» 

1. When the PCM Output is selected and its source is from the external PCM Input, PCM 

(at 48 kHz) will be in bypass mode to pass Dolby Digital, DTS, or 2Ch PCM and will be 

without audio control. 

»» 

2. The Analog Stereo Audio Input is processed (at 48 kHz) and will be converted to digital 

audio at the PCM Output if desired. Full audio control will be available in this case. 

»» 

3. When HD Audio (HD-Dolby Digital, HD-DTS etc.) or multi-channel PCM is carried 

by HDMI, it will be muted at the PCM Output if HDMI is selected as the audio input 

source. 

»» 

Control Interface (HDMI Input/Output Card): 

»» 

Supports both RS-232(up to 115200bps) and Serial IR and shares the same stereo minijack. 

Only one control protocol can be selected through control port settings. 

»» 

RS-232 and Serial IR support bi-directional paths. Output signal level is +5V TTL and 

has +/-12V tolerance. 

»» 

Control Interface (Power Board): 

»» 

Supports one RS-232(DB9), one TCP/IP(RJ45), one USB(B Type) for service only 

(software upgrade), one Serial IR and one IR Eye 

»» 

RS-232 baud rate for control of unit is fixed at 57,600bps (carriage return and line feed 

are required) 

»» 

RS-232 and TCP/IP share same control commands 

»» 

Serial IR supports bi-directional path. Output signal level is +5V TTL with +/-12V tolerance 

»» 

IR Eye is only for Remote IR receiving sensor 

»» 

Front Panel Interface: 

»» 

2 row LCD Display, two rotary knobs(left and right) with push-to-select action to control 

menu choices for front panel control, and IR Eye 

»» 

IR Eye is only for Remote IR receiving sensor 

Technical: 

»» 

Input (Each): 1 HDMI; Left and Right Stereo on two RCA, or one SPDIF digital audio on Left 

RCA connector; 1 wired IR or RS-232 on 3.5 mm stereo jack connector per input 

»» 

Output (Each): 1 HDMI; 1 CAT6/STP on RJ-45 connector; Left and Right Stereo on two 

RCA, or one SPDIF digital audio on Left RCA connector; 1 wired IR or RS-232 on 3.5 mm 

stereo jack connector per output 

»» 

Configuration: 8 input sections and 8 output sections in standard configuration 

»» 

Bandwidth: TMDS bandwidth 10.2 Gb/s 

»» 

Control: Front panel push buttons and LCD display; Infrared IR front; RS-232 Tx and Rx 

lines; Full bi-directional operation 

»» 

Video/Audio Matrix Switching: Full Matrix switching of 3 independent matrixes: 

HDMI Video, HDMI Audio, Analog/Digital Audio 

»» 

RS-232 Control Matrix: RS-232 input/output can independently control the system 

or output through attached KD-CATHD500Rx Balun. Full bi-directional RS-232. 

»» 

Wired IR Control Matrix: Each input/output section wired IR and unit wired IR can be 

switched into matrix in bi-directional operation to any of the inputs/outputs 

»» 

EQ adjustment: On Rx Balun. Precise auto-adjustment, distance measurement 

»» 

Compliance with HDMI ® Standards: Supports HDMI ® 1.4 features (3D Ready, 

4K Resolution Support), HDMI ® 1.3a/b, HDMI 1.2, HDMI 1.1, DVI 1.1, and HDCP 

»» 

Link and Range: Single Link Range: 1080p/60, 1920x1200 max. 400’ with KD-CAT6STP1X 

cabling / 300ft with third-party CAT6/STP. For 1080i/60; 720p; 1080p/24 600’ with KD- 

CAT6STP1X cabling / 500ft with third-party CAT6/STP. 

»» 

Lossless Compressed Digital Audio: Support lossless compressed digital audio 

(Dolby ® TrueHD, Dolby ® Digital Plus and DTS -HD Master Audio) 

»» 

DDC Signal (Data): Input DDC Signal: 5 Volts p-p (TTL) 

»» 

HDMI Video/Audio Signal: Input Video Signal: 1.2 Volts p-p 

»» 

HDMI Connector: Type A, 19 Pin Female 

»» 

RJ45 Connector: Link Connector: RJ-45 Shielded 

»» 

DDC Communication: EDID and HDCP Bi-Directional Transparency from Display to Source 

»» 

RS-232: RS-232 Tx and Rx line active and bi-directional up to 115,200 baud rate 

»» 

Wired IR: IR line modulated or not modulated, active and bi-directional 0-5V TTL 

»» 

Power: External Power Supply. 12V/8.33A 

General: 

»» 

Regulation: CE, RoHS, WEEE 

»» 

Rack Mount: 3RU, Full Rack Width (rack ears included) 

»» 

Enclosure: Black Metal 

»» 

Product Dimensions: L = 17.5” W = 9.25” H = 5.25” 

»» 

Shipping Carton Dimensions:L = 20” W = 12.4” H = 8” 

»» 

Product Weight: 14 lb. » Shipping Weight: 24 lb. 

»» 

Accessories: IR Remote Control, UL Certified Power Supply - 12V / 8.33A, 16 HDMI Cable 

Clips, 6 ft. USB Data Cable

36 37 

Important Product Warnings: 

1. Connect all cables before providing power to the unit. 

2. Test for proper operation before securing unit behind walls or in hard to access spaces. 

3. If installing the unit into wall or mounting bracket into sheet-rock, provide proper screw support 

with bolts or sheet-rock anchors. 

Safety Instructions: 

Please be sure to follow these instructions for safe operation of your unit. 

1. Read and follow all instructions. 

2. Heed all warnings. 

3. Do not use this device near water. 

4. Clean only with dry cloth. 

5. Install in accordance with the manufacturer’s instructions. 

6. Do not install near any heat sources such as radiators, heat registers, stoves, or other 

apparatus (including amplifiers) that produce heat. 

7. Only use attachments/accessories specified by the manufacturer. 

8. Refer all servicing to qualified service personnel. Servicing is required when the device has 

been damaged in any way including: 

»» 

Damage to the power supply or power plug 

»» 

Exposure to rain or moisture 

Power Supply Use: 

You MUST use the Power Supply provided with your unit or you VOID the 

Key Digital ® Warranty and risk damage to your unit and associated equipment. 

How to Contact Key Digital ® 

System Design Group (SDG) 

For system design questions please contact us at: 

½½ 

Phone: 914-667-9700 

½½ 

E-mail: sdg@keydigital.com 

Key Digital Trainings 

For questions about Key Digital ® Trainings please contact us at: 

½½ 

Phone: 914-667-9700 

½½ 

E-mail: training@keydigital.com 

Customer Support 

For customer support questions please contact us at: 

½½ 

Phone: 914-667-9700 

½½ 

E-mail: customersupport@keydigital.com 

Technical Support 

For technical questions about using Key Digital ® products, please contact us at: 

½½ 

Phone: 914-667-9700 

½½ 

E-mail: tech@keydigital.com 

Marketing and Public Relations: 

For marketing and public relations information, please contact us at: 

½½ 

Phone: 914-667-9700 

½½ 

E-mail: marketing@keydigital.com 

Repairs and Warranty Service 

Should your product require warranty service or repair, please obtain a Key Digital ® Return Material 

Authorization (RMA) number by contacting us at: 

½½ 

Phone: 914-667-9700 

½½ 

E-mail: rma@keydigital.com 

Feedback 

Please email any comments/questions about the manual to: 

½½ 

E-mail: customersupport@keydigital.com

38 39 

Warranty Information 

All Key Digital ® products are built to high manufacturing standards and should provide years of 

trouble-free operation. They are backed by a limited two-year parts and labor warranty.

KD-HD8X8BT - Key Digital

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