BASIC APPLICATION GUIDELINES & PROGRAMMING
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5-3
SIG-00-22-02 JUNE 2022 (Revised September 2022)
Version: B.1
5.2 PSO Application and Programming
WARNING
THE GCP5000 (GCE) SHOULD ONLY BE UTILIZED IN APPROPRIATE
APPLICATIONS REQUIRING THE USE OF PHASE SHIFT OVERLAY
TRACK CIRCUITS. ANY OTHER APPLICATIONS SHOULD USE
REGULAR GCP4000 IN MOTION SENSOR OR PREDICTOR MODES.
WHEN USING PSO RECEIVERS IN NON-CROSSING APPLICATIONS,
VERIFY THAT NO UNITS OF THE SAME FREQUENCY ARE WITHIN
TWO ADJACENT TRACKS OR HAVE INSULATED JOINT
PROTECTION.
RAILROADS OR AGENCIES ARE RESPONSIBLE FOR ENSURING
THAT ONLY PROPERLY TRAINED AND/OR AUTHORIZED
PERSONNEL HAS ACCESS TO THE MODEL GCP5000 (GCE).
VERIFY THAT GCE IS PROGRAMMED AS SPECIFIED BY THE
RAILROAD’S OR AGENCY’S APPROVED WIRING OR
INSTALLATION DIAGRAM. FAILURE TO DO SO MAY LEAD TO
INCORRECT OR UNSAFE OPERATION OF THE TRACK CIRCUIT.
INSTALLATIONS WHERE POOR SHUNTING MAY BE EXPECTED
ADD FIVE SECONDS TO THE DESIGNATED RECEIVER PICKUP
DELAY.
NOTE
A minimum 2-second receiver pickup delay is recommended.
5.2.1 Introduction And Overview
The PSO Module allows many application functions to be configured in software, reducing the
equipment and wiring needed by older generation track occupancy information systems. The
following application programming guidelines are provided to assist in planning PSO Module
usage. In this section, the following items are addressed:
•
Logic programming (see Section 5.2.2)
•
External controlling of the PSO Module by use of Inputs (see Section 5.2.2.3)
•
External track circuit replacing a Crossing Assembly component (see Section 5.2.3)
•
Out of Service (OOS) operations (see Section 5.2.6)
5.2.2 Logic Programming
The PSO Module provides programming options that reduce the need for external crossing
relays and timers, wiring between inputs and outputs, and wiring to external relays. The logic
programming controls Directional Stick Logic and Stick Cancel Timers.