Installation Manual

Versus Technology, Inc.
DT10000-A0001 26 Revision 8 December 1998
8.6 Local Powered Collectors
Collectors are provided with a 24V-power supply that must always be used for each collector, providing local
operating power. No other power supply is adequate to power collectors.
8.7 Collector Network Wiring Connections
Concentrator End Connections
The 2-pair collector network connects to the concentrator unit using a modular connection with a RJ-12
modular jack (6 wire). This provides a means to easily disconnect the collector network for testing of the 2-pair
wires or for service of the collector unit.
Collector End Connections
The 2-pair collector network connects to the collector module via a modular connector with a RJ-12 modular
jack (6 wire). A modular-to-modular jumper is then used from one collector unit to the next collector unit. This
provides a means to easily disconnect the collector unit for testing of the 2-pair wires or for service of the
collector unit.
NOTE:
If the voltmeter is applied to a sensor pair, a slight drop in voltage can be observed when the
sensor is receiving a transmitting ID tag. This can be used to identify sensors in lieu of
complete system operation.
CAUTION:
A shorted sensor pair will not cause immediate damage to the collector. However, if allowed
to remain, some heating of collector components will occur which is undesirable. If shorted
pairs are noted in the sensor voltage test, remove the collector power and resolve the shorts as
soon as possible. If the system must be powered with the short unresolved, remove the
Punch-block bridging clips to disable the disruptive sensor until the wiring can be repaired.