GTT Opticom GPS System Installation Manual page 55

52
Location/Terminal
Black/White wires into card rack
Pins A and B on card edge
connector
Green LED inside card rack
(Power Supply)
24 VDC terminal on front of
phase selector
Brown to Brown/White
Violet to Violet/White
Intersection Equipment Installation Instructions
Table 9-2. Expected Voltages
Expected Voltage
120 VAC
24 VDC
On
Approximately 21 VDC
(When power applied through
card edge connector)
Approximately 8.3 VDC
Approximately 9.0 VDC
Notes
To power phase selector.
Check fuse if LED is off.
Check fuse.
External 24 VDC attached to this
terminal may also be used to
power phase selector.
GPS power source, check for at
least 5 seconds.
Powered even when phase
selector is switched off.
Radio power source, check for at
least 5 seconds.