2.4.5 Island Circuit Wiring; Ancillary Equipment Application Guidelines; 2.5.1 Ac Track Circuit/Cab Signal Filter, 7A417-X - Siemens GCP5000 Instruction & Installation Manual

GENERAL GCP5000 (GCE) APPLICATION INFORMATION
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2.4.5 Island Circuit Wiring

Use #6 AWG for track wires. Use twisted-pair wires with at least two turns per foot for
connections between the track and the GCP bungalow. Provide as much separation between
transmit and receive wire pairs as practical. The total wire length from the bungalow to transmit
wire rail connections and bungalow to receive wire connections should not exceed 600 ft.
(182.9m).
USE PROPER PRIMARY SURGE PROTECTION ON THE TRACK WIRES,
GCP5000 BATTERY WIRES, AND ALL GCP5000 LINE CIRCUITS.
2.5

Ancillary Equipment Application Guidelines

In some AC/DC coded/CAB applications, additional filters may be
required. Contact Siemens Applications Engineering.

2.5.1 AC Track Circuit/Cab Signal Filter, 7A417-X

Verify proper Signal System operation per railroad instructions after
installation of the 7A417-X.
Cab Signal Filter, 7A417-X is designed for use in AC track circuit territory where 60, 90, 100, or
200-Hz frequencies are used. The filter should be installed on the primary side of the track
transformer as shown in Figure 3-13.
For Cab Signal Filter, 7A417-X equipment description, see Section 3.4.1; for mounting
dimensions, see Section 3.4.2 and Figure 3-14; and for application installation drawings, see
Section 3.4.3 and Figure 3-13. Correct frequency and relay mounting base type must be
specified in the railroad's written instructions and the couplers should be installed per the
railroad's written instructions.
SIG-00-22-02
Version: B.1
VERIFY PROPER SIGNAL SYSTEM OPERATION PER RAILROAD
INSTRUCTIONS AFTER INSTALLATION OF THE 7A417-X.
CAUTION
NOTE
WARNING
NOTE
2-14
JUNE 2022 (Revised September 2022)