Electro-Voice CM-1 EDS User Manual

CM-1

CobraNet

Interface Module

Key Features:

• 100BASE-TX Ethernet Interface – 100Mbit/s
full-duplex Ethernet Interface; IEEE 802.3u
compatible.

• Secondary 100BASE-TX Ethernet Interface –
Second Ethernet Interface for the connection
of a redundant network to establish fault­tolerant systems.

• Four serial output ports – Internal audio output interface for the transmission of 32 digital audio
channels with 48 / 96 kHz sample rate and 16, 20 or 24-bit word length.

• Four serial input ports – Internal audio input interface for receiving 32 digital audio channels with
48 / 96 kHz sample rate and 16, 20 or 24-bit word length.

• SNMP and TFTP support – Control, monitoring, configuration and firmware updates via Ethernet
protocol.

TM

• Status LEDs – Link, Activity, F ault and CobraNet™ Conductor status indication via Ethernet
connectors.

General Description:

CobraNet™ is a network technology for multi-

Technical Specifications:

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channel transmission of digital audio data. The CM­1 is a compact interface module for connection to
a CobraNet™ network allowing the simultaneous
transmission of up to 32 digital audio input signals
and 32 digital audio output signals.

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Status LEDs:

Yellow: Interface in use
Blinking: Device is a CobraNetTM Conductor

Green: Link okay
Blinking: Communication active

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Fatal Error: Yellow LEDs on both sockets flashing

Block Diagram:

POWER
SUPPLY

+3.3V
+5V

24.576 MHz

VCXO

HOST /

SERIAL

FPGA

MODULE INTERFACE

AUDIO IN

AUDIO OUT

4 x 8 Channels

4 x 8 Channels

DSP

Installation:

1. Turn off power of the unit and pull mains plug

2. Remove cover plate (6 screws on the sides, 3 screws on top, 4
screws on the rear)

3. Remove the blind on the rear panel (2 screws)

4. Install the CM-1 module (see picture); first, secure it with 2 screws
on the rear panel (A), then with 2 screws on the bolt (B), tighten the
screws

5. Make the following cable connections:

- J1 on CM-1 module with CN28 on main board 80500 (65mm flat wire

cable) (C)

- J3 on CM-1 module with CN5 on DSP-Board 80496 (190mm flat wire

cable) (D)

6. Reinstall the cover plate

7. Plug in the mains cord and turn the unit’s power on.

8. Configure CM-1 module parameter in the user-interface according to
application needs.

PHY

MAC

SRAM

PHY

FLASH

Dimension Drawings:

Front View

CM-1 Block Diagram

PRIMARY
RJ-45

COBRANET
INTERFACE

SECONDARY
RJ-45

12000 Portland Avenue South, Burnsville, MN 55337
Phone:[phone], Fax:[phone]

www.electro voice.com

© Telex Communications, Inc. 1/2006

Part Number LIT -0000XX Rev 1

Side ViewTop View

All Dimensions in Millimeters

CM-1 Part Number:

CM-1 -- D170327

U.S.A. and Canada only. For customer orders, contact Customer Service at:

800/392-3497 Fax: [phone]

Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:

+ 49 9421-706 0 Fax: + 49 9421-706 265

Other International locations. For customer orders, contact Customer Service at:

+ 1 952 884-4051 Fax: + 1 952 736-4212

For warranty repair or service information, contact the Service Repair department at:

800/685-2606

For technical assistance, contact Technical Support at: 866/78AUDIO

Specifications subject to change without notice.