Frequencies Available For Use With Pso Module - Siemens GCP5000 Instruction & Installation Manual

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(IPITC II). While designated primarily for use as the island track circuit at highway crossings, the
system satisfies any application requiring a short, high-definition, audio frequency track circuit.
The PSO Module is configurable to use up to five different address codes and a wide variety of
carrier frequencies. Sixteen PSO Module carrier frequencies, ranging from 156 Hz to 4000 Hz,
are available for use in non-electrified territory and an additional 31 common frequencies,
ranging from 500 Hz to 10200 Hz, typically used by non-Siemens equipment, are also available
for use. For electrified territory, ten frequencies are available ranging from 645 Hz to 4000 Hz.
Fourteen standard island frequencies are available for the Island functionality and range from
2.14 kHz to 20.2 kHz; an additional 15 alternate island frequencies, used by non-Siemens
equipment that range from 2.3 kHz to 10.2 kHz are also available. For installations where
multiple circuits are required on the same track, the PSO Module has two sets of eight
frequencies (five for electrified territory) each that can be connected as required with negligible
interference.
The GCP5000 (GCE) can communicate to other GCE units via vital ATCS messages sent from
between the CPUs in each system via Ethernet or Echelon.
The integrated SEAR IIi Internal Event Recorder records 180,000 events and is expandable to
390,000, controls non-vital I/O, and can optionally issue alarms.
1.4

Frequencies Available for Use with PSO Module

NEVER USE AN APPROACH FREQUENCY THAT IS THE SAME AS
THE ISLAND FREQUENCY.
The standard Siemens PSO frequencies depicted in Table 1-2 are available for use with GCE
when utilized as a PSO transmitter or receiver. The alternate frequencies depicted in Table 1-3
are those typically used by other equipment and are available for use with the PSO module. The
standard Siemens PSO Island frequencies depicted in Table 1-2 are available for use with GCE
when utilized as a Crossing. The alternate frequencies depicted in Table 1-3 are those typically
used by other equipment and are available for use with the PSO module. However, the alternate
frequencies use Siemens modulation patterns and are not directly compatible with non-Siemens
transmitters or receivers. When PSO module Receiver-Transmitter pairs are deployed, they can
be substituted for other non-PSO II/III legacy overlay equipment operating on the same channel.
When mixing standard and alternate frequencies, several frequencies
may not be compatible due to harmonic content.
SIG-00-22-02
Version: B.1
WARNING
NOTE
1-5
JUNE 2022 (Revised September 2022)
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