Expansion - The High-Speed Channel (Hsc); Hsc Data - Vocality V100 Technical Manual

C H A P T E R 4 F E A T U R E S
The Voice Configuration for Node3 (Green)
Note that it is also possible for simultaneous point-to-point connections to be made as normal by
specifying the destinations in the usual way. Here, a 2-wire telephone connection is made between the
Hub on channel 2 and Node1(Red) on channel 2. This also provides the illustration that broadcast channel
numbers are LOGICAL numbers, not PHYSICAL numbers which relate to ports, since for example at the
hub, port 1:3 is chosen to supply broadcast TX channel 2. Whenever this channel is to be received at the
remotes it must be referred to as broadcast receive channel 2, so in the case of Node1(Red) we enter
BTR4,2.
All broadcast feeds must be given a unique number – it is not sufficient to start numbering the TX
channels from 1 at each node. In this example, feeds 1, 2 and 3 are provided at the hub and feeds 4, 5
and 6 at red, blue and green respectively.
4.9 Expansion – The High-Speed Channel (HSC)
The 9-way D-type connector on the rear panel of the V100 may be used to link a second chassis to
expand the number of available channels at a single site, effectively building a larger multiplexer. The
High-Speed Channel(HSC) presented on this port is a full-duplex synchronous serial bus running at
4Mbps, which is used to transfer data and control information between units without overhead penalty
and with low latency. The HSC is configured on the System Settings menu.
4.9.1

HSC Data

One chassis must be configured as Master and will poll all other possible node numbers (from 0 to 240
excluding itself) on a rotating basis. The other unit must be configured as a Slave. The master and slave
V100 Versatile Multiplexer Technical Manual Version 2.2
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