CIC Card and CTB (Backplane)
3.16.1 Overview
The CIC is the Plus
+
communications hub and provides controller power distribution for the remote
nodes, via the street wiring. Its main role is to provide safe communications to remote nodes such
as RAG, Wait and Nearside nodes in order to control the traffic signalling. It provides the facility to
disable the 48V power supply to selected nodes in the event of safety events.
The CIC, fitted to its associated CTB, is situated within the controller cabinet in a similar fashion to
how the ST950 ELV controller mounts its LSLS assemblies and are typically mounted on the side
walls of the controller. In order to maintain consistency of mounting arrangements the size of the
CIC is constrained to 6U and the CTB retains the same footprint as the LSLS backplane.
The CTB is a passive backplane used for the termination of various signals including 48V Power,
on street cabling (including power and communications), ST950 (power and communications),
and control for ancillary equipment.
Up to three CICs may be fitted in the controller cabinet.
Figure 28 – CIC and CTB (Backplane)
To Next Page
Loading...
