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 Bridges
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.
​
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.
​
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.
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
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.
MegaCOMMS PORTS
-
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
-
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
-
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
-
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
-
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.)