Re:connect M 203 Loewe Interface - Revox

of 

of 

Re:connect 

M 203 

Loewe 

Interface 

Dominating Entertainment. 

Revox of Switzerland.

M203 Loewe Re:connect 

Attention Software Update !!! 

Unlike the software for the M203 Single RS232 interface, the M203 

software for the Loewe controller is premium-priced and therefore copy 

protected. 

Under no circumstances should you load any other software than the 

M203 Software Loewe when carrying out an update. If a different 

software is loaded, the Loewe software is then blocked and has to be 

reloaded at the Revox Head Office in Villingen, Germany. 

Not every television from Loewe can be controlled through the M203 

interface. You will find a list of the models that are supported on page 6. 

1


Table of Contents 

Attention Software update 

Table of contents 

M203 interface 

Installation 

Connection Plan 

Connection 

M51 Link IN 

M51 Link OUT 

RS 232 

IR-LINK 

Setup key 

Slot selection 

Serial Port Mode 

Serial Interface 

RS-232 Link 

RS-232 Filtered 

Video Controller 

Connection plan 

Loewe Controller 

Gefen HDMI Switcher 

Setup # 1 

Select Device 

Auto Standby 

Overview video products 

Gefen HDMI-Switcher 4x1/ 4x2 

Gefen HDMI-Switcher 6x2 

Loewe Individual Compose 40 

Loewe Individual Compose 46 

Changing the Loewe IR codes 

SCART cable for dual- channel 

Setup # 2 

1. Selecting audio source 

Unknown audio sources 

2. Assigning video input 

Disable 

Setup #2 Reset 

Technical data 

Guarantee 

Included in delivery 

2 

1 

2 

3 

3 

3 

4 

4 

4 

4 

5 

5 

6 

6 

7 

7 

7 

8 

9 

9 

9 

11 

11 

11 

12 

12 

12 

13 

13 

14-15 

15 

16 

16 

16 

17 

18 

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19 

19 

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M203 Loewe 

Like Revox, Loewe is a name 

with a tradition behind it. Our 

customers, like those of Loewe 

appreciate the intuitive 

operation, the timeless design 

and the high quality offered by 

our products. With the M203 

Loewe Interface, we would like 

to offer both sets of customers 

the opportunity to unite the 

worlds of Revox and Loewe, in 

an elegant way. 

Installation 

The M203 interface can be 

installed easily and quickly. 

There are two types of fixing 

available. 

Connection plan 

3 

The Revox M203 Loewe 

Interface controls the Loewe TV 

through its serial interface, so that 

automatically, the correct picture 

input will be selected when the 

customer operates his Revox 

equipment, for example. In 

combination with the Revox 

M208 Remote control, even the 

Loewe screen’s motor-supported 

stand can be operated. 

1) The four outside fixing holes 

are used for a permanent 

installation. 

2) Revox recommends using 

the two slots on the side for a 

variable installation. 

Connection to the M51 

Connection to further external M51-Interfaces 

IR-/ wall-mounted remote control M204/ M218 

RS232 seriell interface 

Slotted hole 

Serial interface activity display 

Setup button


Connection: 

M203 with M51 

Socket: M51 LINK IN 

The M203 interface is 

connected to the M51 LINK 

socket on the back of the M51 

with the telephone cable 

supplied. 

If you want to use a different 

cable for some reason, you 

should use only a noncrossed, 

4-core telephone 

cable with an RJ11 plug (6P4C 

modular). 

Cables up to 100* metres in 

length can be used. 

Connection: 

M203 with external interfaces 

Socket: M51 LINK OUT 

The M51 LINK can be used to 

connect additional external 

interfaces to the M203 interface. 

These could, for example, be 

the M201 IR interface, a M200 

Domotic interface, a M202 

Ethernet interface or simply an 

additional M203. 

You should use only a noncrossed, 

4-core telephone 

cable with an RJ11 plug (6P4C 

modular) for this connection. 

* Max. cable resistance: 0.1 Ω /m 

4 

Connection: 

M203 with seriell interface 

Socket: RS232 

The M203 Interface can be 

used with other (TV) devices, 

which also have a serial interface. 

In this way, TV units from Loewe 

and Pioneer as well (using M203 

Pioneer), can be conveniently 

integrated into the Revox world. 

Which models are supported and 

how the integration is achieved is 

described, starting from Page 6. 

The M203 Interface is also 

suitable as an interface to 

domestic facility management 

systems such as AMX or 

Crestron, which have a special 

Revox protocol. 

Even a Windows PC with the 

M230 control program can be 

connected to the serial interface 

on the M203. 

You will find further information 

from Page 5. 

Serial cables with a maximum 

length of 10 metres can be used.


Connection: 

M203 with IR controller 

Socket 

CONTROL: IR- LINK 

The connection to an IR 

receiver or a wall-mounted 

remote control is done through 

the 3-pin, screw-fixable Phoenix 

plug connection. 

Revox recommends the use of 

a 2-core screened cable 

(microphone cable), where the 

screening is used as ground. 

This cable may be a maximum 

of 30 metres in length. 

Please ensure that you use 

the correct polarity when 

setting up as otherwise you 

might damage your equipment. 

Symbols: 

+ � Pos. voltage. 20V (DC) 

IN � IR Signal 

- � Ground 

The maximum number of IR 

receivers that can be switched 

in parallel per M203 is 3. 

5 

Setup key 

Using the Setup key, you can 

call the M203 menu, which 

appears in the M51 display. 

Using the Softkeys 

you can get to pages #1 and #2


Slot Selection 

If a second M203 (M200) is 

connected to the M51 Link 

output, a different address must 

be assigned through the slot 

selection so that both M203s don’t 

occupy the same slot address. 

This would cause errors. In the 

case of a double assignment, 

neither of the two M203s would be 

shown in the M51 Version list. 

Slot addresse: #11 or #12 

Important: 

Only one M203 may be connected 

to the M51 Link for the 

address selection. You should 

separate the one M203 from the 

M51 Link while assigning the 

address to the other. If the 

addresses are correctly set, both 

M203s (M200) will appear in the 

M51 version list. 

You will find further information 

on this topic in the M51 manual 

in the Introduction chapter 

under the Version function. 

6 

Serial Port Mode 

The function of the serial interface 

(Serial Port) can be configured 

for the following 

applications: 

• RS-232 Link 

• RS-232 Filtered 

Video Control of: 

• Gefen HDMI Switcher 4x2, 4x1 

• Gefen HDMI Switcher 6x2 

• Loewe Individual Compose 40* 

• Loewe Individual Compose 46* 

* In order to ensure problem-free operation, 

the Loewe Individual Compose 

must meet the following requirements: 

Loewe TV Service Menu: System data 

TV application software version: ≥ V2.2.x 

Firmware I2CUART version: ≥ V3.1.x 

As an option, it is also possible to 

purchase a licence, with which the 

following plasma devices from the 

Pioneer company can be operated: 

• Pioneer PDP 5000 EX 

• Pioneer PDP 506 FDE 

• Pioneer PDP 506 XDE - Cabel 

• Pioneer PDP 506 XDE - DVBT 

• Pioneer PDP 507 XA 

• Pioneer PDP 507 XD 

• Pioneer PDP 60 MXE20 

• Pioneer PDP 615 EX 

(Status quo July 2007)


Serial Interface 

RS-232 Link. 

Standardised serial interface 

(RS232 protocol) for connection 

to a PC or another serial 

interface. 

Application: 

You should select this setting if 

you want to use the M230 

control program for PCs or if 

you want to access the Revox 

System through domestic 

facility management equipment 

such as Crestron and AMX. 

7 

RS-232 Filtered. 

Data-reduced RS232 protocol. 

Only M51-specific data is 

transferred, so-called display 

and broadcast messages. 

Application: 

Simple controllers with low data 

traffic requirements.


Video Controller. 

If a device controller was 

selected as Port Mode on page 

#1, a second menu page, 

Setup #2 is available. This 

page enables you to selectively 

switch on and/or between video 

inputs on a Loewe TV or an 

HDMI Switcher from the Gefen 

company, dependant on the 

selected M51 source. 

Example: 

A SAT receiver can conveniently 

be integrated through the 

automatic selection of the video 

input on the TV by the M51. Its 

picture output is connected, for 

example, to the S-Video input on 

the plasma TV, while the audio 

signal is connected to the Optical 

digital input on the M51. 

Please also refer to the picture on 

the next page. 

If you now select the source SAT 

(Optical) at the M51, the plasma 

TV automatically transmits the 

SAT receiver picture over the 

S-Video input 

8 

and the sound from the SAT 

receiver is transmitted over the 

M51. 

The convenient integration can 

of course also be used for the 

M51’s integrated DVD player. In 

this case, you only need to 

establish a video connection 

between the M51 and the TV. 

Please refer to the picture on 

the next page – Connection : 

Video 1). 

IR Link 

The infrared interface IR Link 

was integrated especially for the 

video controller. Connect the 

small M204 IR receiver, which 

is available in four different 

models, to the IR Link and 

locate it near to the TV. Now 

you can locate the M51 in a 

concealed location or outside 

the normal range of your remote 

control, without having to forego 

any of the convenience of using 

the remote control. 

� 

An M218 wall-mounted remote 

control, with integrated IR 

receiver, can be connected 

instead of the M204 IR receiver.


Connection plan: Loewe controller 

9 

A


Connection A plan: HDMI switcher 

Note 

The HDMI output on the M51 is only available if the DVS module is installed 

Gefen ® : Registered trademark of the Gefen Company/US 

10


Setup #1 – Select device 

Using the softkeys Port Mode ± 

on page 1, select the TV model 

or the HDMI Switcher that you 

want to control through the 

RS232 interface. 

You will find an exact 

description of the individual 

products and their specific 

cabling, starting from page 10. 

When you select a video 

device, the menu point Auto 

Standby appears automatically. 

This is described in the 

following section. On the other 

hand, this menu point does not 

appear in Serial Port Mode 

RS232 Link and RS232 

Filtered, because it is only used 

to control video devices. 

11 

Auto Standby 

The Auto Standby function 

enables the Plasma TV to 

remain switched on, even in the 

case of selected audio sources 

that do not activate a video 

input at the Plasma TV, e.g. the 

M51 radio tuner. 

Auto Standby: ON 

The Plasma TV switches itself off 

automatically as soon as an audio 

source is selected, which either 

cannot activate a Plasma input, 

e.g. Tuner, or which is disabled. 

Auto Standby: OFF 

After the Plasma TV has been 

switched on, it remains on 

permanently until the M51 is 

switched off, irrespective of which 

audio source is selected at the 

M51.


Overview Video products 

Gefen HDMI Switcher 4x2 

(Switcher 4x1) 

Control software for the HDMI 

Switcher 4x1 and 4x2 from the 

Gefen Company (www.gefen.com) 

The HDMI inputs on the HDMI 

switcher are activated, dependant 

on the M51 source. If there is no 

assignment, the HDMI input that 

was last selected remains active. 

Setting is done on page #2 in the 

M203 Setup. 

Product features: 

- 4 HDMI inputs 

- 1 HDMI outputs (4x1) 

- 2 HDMI outputs (4x2), 

whereby both outputs can be 

operated in parallel 

- Resolution up to 1080p 

- HDCP-enabled 

- Optical audio digital output 

A crossed Sub-D cable (plug – 

plug) is required for the 

transmission. 

9 pin - 9 pin 

pin 2 - pin 3 

pin 3 - pin 2 

pin 5 - pin 5 

Gefen products are freely 

available through specialist 

retail outlets. 

12 

Gefen HDMI Switcher 6x2 

Control software for the HDMI 

Switcher 6x2 from the Gefen 

Company (www.gefen.com) 

The HDMI inputs on the HDMI 

switcher are activated, dependant 

on the M51 source. If there is no 

assignment, the HDMI input that 

was last selected remains active. 

Setting is done on page #2 in the 

M203 Setup. 

Product features: 

- 6 HDMI inputs 

- 2 HDMI outputs, whereby both 

outputs can be operated in 

parallel 

- Resolution up to 1080p 

- HDCP-enabled 

- Optical audio digital output 

A crossed Sub-D cable (plug – 

plug) is required for the 

transmission. 

9 pin - 9 pin 

pin 2 - pin 3 

pin 3 - pin 2 

pin 5 - pin 5 

Gefen products are freely 

available through specialist 

retail outlets.


Loewe Televisions 

Individual Compose 40* 


The Loewe models listed above 

require a crossover serial cable, 

also known as a null modem 

cable, as the control cable between 

the M203 and the plasma 

television. 

For this reason, you should use 

the enclosed crossover adapter 

with the supplied Revox 1:1 

cable. 

Connection type: plug - plug 

9 Pin - 9 pin 

Pin 5 - Pin 5 

Pin 2 - Pin 3 

Pin 3 - Pin 2 

Stecker - Sub-D 9 pol 

5 4 3 2 1 

9 8 7 6 

5 4 3 2 1 

9 8 7 6 

Buchse - Sub-D 9 pol 

* In order to ensure problem-free operation, 

the Loewe Individual Compose 

must meet the following requirements: 

Loewe TV Service Menu: System data 

Loewe TV application Fernseher 

software version: V2.2.x or higher 

Firmware I2CUART version: V3.1.x or higher 

13 


Individual Compose 46*


Changing the Loewe IR code at the television 

In order to avoid IR conflicts between the Loewe television and the 

Revox system, the system address at the Loewe television and the 

remote control must be changed. The reason for this is as follows: 

Both Revox and Loewe use an RC5 code with the system address 00 

for the television. For this reason, both systems will react to some of 

each other’s commands. This IR conflict can be solved if the system 

address 02 is selected for the Loewe television, instead of the 00. 

The system address is changed in the following way: 

At the Loewe television (board operating element): 

� Press the M button briefly 

� Press the - button briefly 

Then, at the Loewe Assist 1 remote control: 

� press the MENU button within 1 second 

Now, the service menu should be visible. Select the sub-menu “Other 

adjustments” from this menu. Select the menu “RC subsystem” from 

the “Other adjustments” menu. The factory setting for the “RC 

subsystem” menu is to set the system address to 00. Now set this to 

02. 

The Loewe TV now reacts to the system address 02 as well as to the 

originally set 00. 

14


Changing the Loewe IR code at the remote control 

The remote control must also be set to the system 

address 02. This is done as follows: 

Hold the Mute button together with the 2 button 

pressed, until the red LED under the mute button 

starts to flash, after about 3 seconds. 

The IR code is now set to the system address 02. 

If the system address 02 is already used for another 

device, the address 01 or 08 can be used instead (see 

light-coloured marking). 

In such a case, the system address of the Loewe 

television must also be set to 01 or 08 accordingly. 

Address 00 is the factory setting. 

Sound switching with SCART connection between M51 

and Loewe television 

Sound switching for dual-channel transmissions is only possible at the 

Loewe television’s audio output (Cinch socket), not at the SCART output. 

This means that if the Loewe television is connected with the M51 using a 

SCART cable, Eurosport, for example, can be heard in parallel in German 

through the lefthand channel and in English through the righthand channel. 

That cannot be changed. 

Using a special SCART cable, available from Revox under the Part no.: 54 

429 110, the channel switching can be used correctly again. In this case, 

the lefthand and righthand sound channels are disconnected and supplied 

through the external audio output. Please refer to the graphic. 

Loewe TV outlet: SCART 2 AV 2 (RGB) 

Loewe TV 

outlet: 

Audio Out 

15 

M51 outlet: DVD-SCART


Setup #2 - Setup 

1. Selecting audio source 

To start with, using the 

Source ± softkey, select the 

M51 audio source that later 

should activate a particular 

video input on the television/ 

HDMI Switcher. 

Assignment example 

Using the Source+ and Source- 

softkeys, you can step forwards 

and backwards respectively, 

through a loop of audio inputs, 

which are currently available on 

the M51. 

If the name of an audio source 

has been changed, the modified 

name also appears in the list. 

This feature offers a high 

degree of user comfort, as well 

as giving a better overview. 

An “Unknown” Source must be 

deleted manually. You will find 

more information about this in the 

next section. 

16 

Unknown audio sources 

During the initial configuration, 

unknown sources can be 

present, caused by the swap or 

the de-installation of modules. 

It can take a few seconds for 

the M203 interface to identify all 

the sources, after switching the 

M51 on. 

Any unknown sources should 

be deleted by pressing the 

Disable softkey twice and then 

pressing the Delete softkey.


2. Assigning video inputs 

In the second step, a video 

input from the television / HDMI 

Switcher is assigned to the 

selected M51 audio source, 

using the Input ± softkey. Using 

the Input± softkey, you can 

step through a loop of video 

inputs that are available to the 

television. 

As the televisions that can be 

selected from have different 

video inputs, only those video 

inputs that the corresponding 

device has, are actually 

displayed. 

z.B.: 

S-Video 

RGB 

YUV 

VGA 

… 

17 

The softkey Store appears as 

confirmation each time the 

Input is changed. Press Store if 

you want to save your changes. 

Otherwise the original setting is 

retained. 

The following display appears, if 

a video input is called by one or 

more audio sources: 

Assignment example 

This example shows you that, 

as well as the currently 

displayed audio source (DVD), 

a further audio source has also 

been assigned to this video 

input (here CVBS). Using the 

Source ± softkeys, you can 

search for the audio source that 

also calls this video input. 

Several audio sources are 

always required if, for example, 

the M300/M301 Video switch is 

used, which bundles several 

video sources together to one 

video input on the television.


Disable 

Using the Disable function, you 

can undo or disable the assignment 

of an audio source to a 

video input. 

To do this, select the required 

audio input using the Source ± 

softkeys and then press the 

Disable softkey. The Store 

softkey then appears that you 

need to press to confirm your 

change. 

If you don’t press Store, the 

original setting is retained. 

18 

Setup #2 Reset 

If you want to return the settings 

in Setup #2 menu to the factory 

settings, simply press and hold 

the Disable softkey until the 

Setup- #1 page appears again. 

This resets all input assignments 

and restores the factory 

settings.


Technical data 

IR-LINK: 

+ � Positive voltage 10-20V (DC) 

IN � IR signal 

- � Ground (GND) 

Dimensions: 113 x 25 x 50 mm (WxHxD) 

Weight: 150 g 

Power consumption: 35 mA (without IR receiver) 

Max. cable length: 100 m* (M203- M51) 

Max. cable length: 30 m* (M203 - IR receiver) 

* Max. cable resistance: 0.1 Ω /m 

System requirements for the Loewe Individual Compose : 

Loewe TV Service Menü : System data 

TV application software version: V2.2.x or higher 

Firmware I2CUART version: V3.1.x or higher 

E & OE 

Product subject to technical modifications. 

Description: Version M203-4 0.71 

Guarantee 

The guarantee period is 24 

months from the date of purchase. 

Your dealer should be 

your first contact if you need 

service. If he can't give you the 

help you need, send your M203 

interface carriage free and 

without any accessories to your 

national Sales Office. Please 

supply a complete description of 

the problem and a full return 

postal address. 

19 

Included in delivery 

� M203 Loewe interface 

� M51 Link cable ( 2 m ) 

� Serial PC cable 

(plug – plug) 

(1:1 – length 2 m) 

� RS232 Cross adapter 

� Manual


20


GERMANY 

Revox GmbH, Am Krebsgraben 15, D-78048 VS-Villingen 

Telefon +49 7721 8704 0, Fax +49 7721 8704 29 

info@revox.de, www.revox.de 

SCHWEIZ 

Revox Schweiz AG, 

Wehntalerstrasse 190, CH-8105 Regensdorf 

Telefon +41 44 871 66 11, Fax +41 44 871 66 19 

info@revox.ch, www.revox.ch 

Zentralservice 

Revox GmbH, Am Krebsgraben 15, D-78048 VS-Villingen 

Telefon +49 7721 8704 43, Fax +49 7721 8704 49 

info@revox.de 

Manual M203 Loewe interface 

21

Re:connect M 203 Loewe Interface - Revox

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