NC-NXS - Crest Audio

NETWORK MODULE
FOR CKS, CKV & CKX SERIES
POWER PROCESSING AMPLIFIERS
NC-NXS Full NexSys ® Functions & Control
Product Information
The NC-NXS is the ‘central’ NexSys interface module that supports all
NexSys functions, including Load, AC and Line-Level Output Audio
Return Monitoring, Amplifier ID, Module ID, and NexSys-initiated
Sequential Turn-On/Off. It fits in the Network bay located on the rear
panel of Crest Audio CKS, CKV & CKX Series Power Processing
amplifiers.
CLASS 2
WIRING MAY
BE USED
Output
–
+
+
A
B
– Signal
Ground
Lift
Jumper
Architects and Engineers Specifications - NC-NXS.
The module shall plug into Crest Audio CKS or CKV Power Processing amplifiers in the
Network bay. The module shall provide a 5mm 3-pin Phoenix connector for connection to a
NexSys data bus and another for “daisy-chaining” to other amplifiers. Two rotary switches
shall assign the module a NexSys data bus address.
The NC-NXS requires both an NC-IPN (or any other programmable
Input Processor NC Module) and a compatible Power/Output NC
Module. Connection to the NexSys data bus is via two 5mm three-pin
Phoenix connector. Data bus address selection is via two recessed rotary
switches. A Data LED indicates data signal presence.
Firmware is upgradable thru the NexSys system.
Features
• Microprocessor-based NexSys network interface • Provides for all NexSys functions
• NexSys-downloadable firmware permits easy future upgrade path • Data signal present LED
• Twisted-pair data bus connection via two 5mm 3-pin Phoenix connectors • Monitoring of amplifier status
• Level, load and line monitoring • Computer sequential turn-on/off (STO) control
NC-NXS connections
+
--
Designed & manufactured in the USA by:
Model
Name
CKV 100
CKV 200
CKV 400
CKV 800
CKV 1600
CKV 2400
Network
Output Power
@70.7V
50W
100W
200W
400W
800W
1200W
+ – + –
NexSys Bus
Data
Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
Model
Name
CKS 100
CKS 200
CKS 400
CKS 800
CKS 800-2
CKS 1200-2
CKS 1600-2
--
+
2
3
4
5
6
1
7
Output Power
@8Ω/Ch.
8
F
9
Hi
E
D
A
50W
100W
200W
400W
400W
600W
800W
Address
C
B
2
3
4
5
6
1
7
8
F
9
Lo
E
D
A
C
B
Power
Processing
Modules
Model
NC-NXS
N-Coder
Data
Port
A green LED shall indicate when data is being sent from or received by the module. The
module shall require a Power/Output module which, by definition, provides the power supply
required for the Network module. The module shall be fully compatible with NC-STI,
NC-SAC, and NC-SLM Power/Output modules. The module shall be designated the Crest
Audio model NC-NXS.

BLOCK DIAGRAM
NexSys
Bus
Conn.
ADDRESS
SWITCH
NexSys
SPECIFICATIONS
NC-NXS Network Module
PORT
Full NexSys Functions & Control
Microcomputer
AMP STATUS
FLASH
Connectors: Two 5mm 3-pin Phoenix
NexSys network connectors
Controls: Two NexSys network address dials
Indicators: Data present LED
v. 2.1 4/7/97
*A3300028*
I/F
ADC
Internal
Module Bus
CONTROL OPTIONS
VU
LOAD SIGNALS
LINE SIGNALS
The NC-NXS microprocessor-based network
interface provides for all NexSys functions,
including:
• Monitoring of amplifier status, level, load;
• Line monitoring;
• Sequential turn-on/off (STO) control.
Refer to specific module data sheets for more
information.
Crest Audio reserves the right to make improvements in manufacturing or design which may affect specification. Crest Audio specification literature is available in electronic form to qualified users.
Contact Crest Audio Inc. for more information. NexSys is a registered trademark of Crest Audio Inc. ©1996 Crest Audio Inc.
Crest Audio Inc.
100 Eisenhower Dr., Paramus NJ 07652 USA
TEL: 201.909.8700 FAX: 201.909.8744
http://www.crestaudio.com
Printed in USA