1-4
The 4100 internal communications bus can carry data from the CPU in the main cabinet
to expansion equipment in an adjacent cabinet. 4100 data from the CPU may be routed to
remote cabinets (RTUs) in a MINIPLEX system by using the external RUI
communications bus. An RUI line, routed from the CPU Motherboard in the 4100ES,
allows the data to travel long distances.{xe "transponder interface card (TIC): RUI
and"}{xe "RUI (remote unit interface): about"} Once the RUI line terminates at a remote
cabinet, the TIC (4100ES) in that cabinet distributes the CPU’s data to the other modules
within the cabinet.
Power has to be supplied locally within each RTU, or routed from the main FIP.
Figure 1-2, below, outlines this process in a typical MINIPLEX setup.
Figure 1-2. MINIPLEX/RTU 4100ES System
MINIPLEX/RTU Configuration, Continued
RUI Communication
4100ES
RUI Risers - 4 MAX (same channel)
(from CPU Motherboard or Remote
Unit Interface Card)
Transponders may be located
further a
art
within the 750m
limit) as called for by the
application requirements.
Risers from 4100ES to
Remote Transponders
RUI
9th Floo
Transponde
Unit
6th Floo
Transponde
Unit
3rd Floo
Transponde
Uni
RUI I/F Slave
Slave Slave
RUI I
F Slave
Slave Slave
RUI I/F Slave
Slave Slave
Note:
lthou
h not shown, nested
RUI is supported up to one
level deep.
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