IGD 2-Wire Systems, Installer'S Manual

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Cascading Controllers and/or Hubs
Note that on the top level master panel only cable 1 and cable 2 support cascading.
Hub cards can be cascaded together. This can be to allow master and slave panels to network
systems together or to gain extra distance on a cable network or add more cable highways. The
two wire system can be cascaded down two levels. With its capability to transmit up to 1000M,
cascading down 2 levels means systems can be up to 3KM long.
In this example the main master panel at
the start of the cascade will see all the
detector nodes and relay cards installed
on panels below it.
-L2
IMPORTANT NOTE
Ensure Cable Screens Are
Earthed to PSU Earth.
+L1
Failure to observe this will result
in damage to the hub card
The Cascaded links between
panels are polarity sensitive as:
+L1
-L2
Ports not used for
cascading links each
support 32 detector nodes
or relay cards
Hubs cards can operate without displays
and can be DIN rail mounted into
enclosure systems such as IGD’s range of
field boxes
Cabling between panels/hubs can
be up to 1000M