
GCP5000 (GCE) INSTALLATION, CALIBRATION AND SYSTEM OPERATIONAL CHECK
_________________________________________________________________________________________________________
6-7
SIG-00-22-02 JUNE 2022 (Revised September 2022)
Version: B.1
Figure 6-7 Threshold Adjustment
14.
Enter a value for the Threshold that is 10% higher than the highest value in Step 8 or
Step 11 of the previous procedure.
15.
Conduct a broken rail simulation for both rails (steps 7 through 14 of the previous
procedure). Ensure that the receiver registers occupied (Signal Level Drops below that
used in Step 14).
16.
If it does not, adjust the RX Threshold level to reflect the simulated broken rail value.
Record the final RX Threshold level on the Program Sheet.
WARNING
ENTERING AN INCORRECT THRESHOLD VALUE IN STEP 14 OR
FAILURE TO COMPLETE VERIFICATION IN STEPS 15 AND 16 CAN
RESULT IN FAILURE TO DETECT BROKEN RAIL.