2.2.3 Frequency Selection; Table 2-7 Track Frequency Groups - Siemens GCP5000 Instruction & Installation Manual

GENERAL GCP5000 (GCE) APPLICATION INFORMATION
_________________________________________________________________________________________________________
INCORRECT SETTING OF RECEIVER THRESHOLD CAN CAUSE
BROKEN RAIL DETECTION TO NOT OPERATE.
An engineering study should be conducted to eliminate interfering
harmonics.
Applications requiring broken rail detection are possible. In these
applications use of the Receiver Threshold may be required.

2.2.3 Frequency Selection

The application of PSO frequencies is generally accomplished by separating the frequencies
into two groups with one channel separation between frequencies in each group as follows.
Table 2-1, Table 2-2, and Table 2-3 reflect these groups. Avoid using adjacent frequencies in
the same block.
One channel separation between frequencies is provided by dividing the 16 PSO frequencies
into two groups of eight frequencies each as follows.
All frequencies within a group are compatible and may be intermixed without
restriction on the same rails without insulated joint separation. See 2.1.2.2
for AFTAC II unit frequency groupings and 2.1.2.3 for AFO unit frequency
groupings.
SIG-00-22-02
Version: B.1

Table 2-7 Track Frequency Groups

Group 1 (Hz) Group 2 (Hz)
156
285
430
645
970
1,450
2,140
3,240
2-10
WARNING
NOTE
211
348
525
790
1,180
1,770
2,630
4,000
NOTE
JUNE 2022 (Revised September 2022)