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Cadac CM-MD64 and CM-DT64 Group

Audio Network Bridges

Overview

Cadac's network bridges enables MegaCOMMS to connect to other popular protocols,

including MADI via the CM-MD64 Network Bridge and Dante via the CM-DT64 Network Bridge.

CM-Network Bridg: Welcomes
CM-Network Bridges: Introduction
Cadac CM-MD64 and CM-DT64 audio network bridges

CM Bridges

Cadac CM logo

Introduction

Cadac network bridges enables simple, fuss free MegaCOMMS integration with other popular protocols, including MADI via the CM-MD64 Network Bridge and Dante via the CM-DT64 Network Bridge.

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Both the CM-DT64 and the CM-MD64 support up to 64 bi-directional connections to map between MegaCOMMS ports and the relevant third party network.

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Connection between the bridge and console is done via Cadac’s proprietary hi-speed data protocol - MegaCOMMS - which carries 128 channels of 24-bit, 96 kHz audio, plus control data and clock, bi-directionally, up to 150 metres via a pair of RG-6 coaxial cables.

CM-Network Bridges: Hardware Overview
Cadac CM-MD64 and CM-DT64 MegaCOMMS audio network bridges

Hardware

Overview

  • 2 pairs of MegaCOMMS ports on RG6 BNC connectors

  • CM-DT64: Two Dante Ethernet network ports A and B

  • CM-DT64: Unit configuration via Dante Controller software

  • CM-MD64: Two MADI network ports A and B on BNC or optical

  • CM-MD64: Config switch to set sample rates Word Clock

  • CM-MD64: Word Clock IN / Word Clock OUT on BNC

  • Word Clock status indicators

  • 75 Ohm switch

  • Synchronisation status indicators

  • Dual internal PSU

  • 1U rack space

CM-Network Bridges: Features Overview
Cadac CM-MD64 and CM-DT64 Dante and MADI network bridges

Features

Highlights

  • Up to 64 inputs and outputs

  • 96 kHz or 48 kHz operation

  • Word Clock modes - Lead or Follow

  • Dual internal, redundant, auto switching PSUs

  • BNC ports glow either red for receive (Rx) or blue for transmit (Tx)

Simple Integration

Cadac's network bridges allows simple, fuss free, integration into a range of industry standard protocols.

CM-Network Bridges: Features

MegaCOMMS PORTS

Cadac CM-MD64 and CM-DT64 MegaCOMMS audio connectors

  • There are two pairs of MegaCOMMS ports - on RG6 BNC connectors - carry all audio and control data between the control surface and other MegaCOMMS devices - stage racks or consoles.

  • Individual ports have a signal present LED.

  • The BNC ports glow red for receive (Rx) or blue for transmit (Tx), perfect for low light identification.

CM-DT64 DANTE PORTS

Cadac CM-DT64 Danti audio connectors

  • Two Ethernet Dante network ports, A and B, are available to provide the required 64 input / output channel count.

  • Each has a primary and secondary connection; the secondary connections are for redundant network connections only.

  • Each A and B port has a connection OK LED.

  • IO FS LED indicates the sample rate (FS) of the inputs and outputs - 48 kHz or 96 kHz.

CM-MD64 MADI PORTS

Cadac CM-MD64 MADI audio connectors

  • Two MADI network ports, 1 and 2, are available to provide the required 64 input / output channel count.

  • Ports are available with the option of BNC coax or optical connections.

  • The optical connection can carry the audio stream up to a distance of 2 km.

  • Each type of connector has a LED indicating successful receipt of data.

  • IO FS LED indicates the sample rate (FS) of the inputs and outputs - 48 kHz or 96 kHz.

WORD CLOCK

Cadac CM-MD CM-DT64 48k and 96k word clock

  • CM-MD64: Word Clock IN or OUT on BNC ensures the synchronisation of the digital signal with the network. 

  • CM-DT64: Word Clock OUT only.

  • The Word Clock status LED indicates whether the unit is set to be Following an external clock, or whether the unit is set to be the Lead clock.

  • The Synchronisation LED indicates the unit is Following a Word Clock connected via the Word Clock IN BNC on the CM-MD64 , or is Following a Word Clock set by a third-party unit within the audio network, or the unit itself is the Lead Word Clock for both the CM-DT64 and CM-MD64.

PSU

Cadac CM-MD64 dual internal power supplies

  • Both units feature dual internal, auto switching, redundant PSUs.

  • Front panel LEDs indicate the ON status of each of the two power supplies.

  • There is a convenient front panel switch to turn the unit ON / OFF.

  • The PSU connectors accept both standard and locking IEC cables.

Gallery

Specification

General Specification

PSU

2 x internal PSUs

100-240V AC 50-60 Hz

Output requirements: +17 V, -17 V, +12 V

MADI

MADI (AES10 compliant) network bridge with up to 64 bidirectional channels at 48 kHz and 32 bidirectional channels at 96 kHz

Operates up to 500m over optical fibre link and 200m coaxial copper link

Optical transmission on SC Duplex connectors

Cooper transmission on 75 ohm coaxial BNC connectors

DANTE

2 x Brooklyn cards

32 inputs and 32 outputs simultaneous streams on each card at 96 kHz

Audio buffering of up to 2000 samples per channel

MegaCOMMS

2 x Cadac MegaCOMMS on:

4 x BNC connectors

DIMENSIONS

482.60mm x 43.60mm x  252.50mm

WEIGHT

4.5kg / 9.92lb (approx.)

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