Revision 1 2017
CDC seven
13
Data protocol: MegaCOMMS
Communication between the remote MegaCOMMS I/O devices and the control
surface is via a proprietary Cadac high speed protocol called MegaCOMMS,
using high-speed 75 ohm coaxial cable terminated in BNC connectors.
Two interconnection paths are provided, A and B, each of which requires a
transmit and receive cable. The maximum capacity of each path is 128 audio
channels in each direction.
The maximum recommended cable run between any two system components
(i.e., surface to I/O device, or between I/O devices) is 150 m (492 ft).