Green Sense Wiring With Auxiliary Interface Panel - GTT Opticom GPS System Installation Manual

Intersection Equipment Installation Instructions
5.5.4 Green Sense Wiring with
Auxiliary Interface Panel
NOTE: Wire gauges from 22 to 16 AWG may be
used with the Opticom™ GPS System Auxiliary
Interface Panel. See Section 5.4.3 for
information about the auxiliary interface panel
installation.
WARNING
This procedure may expose you to AC
voltage and the risk of electric shock or
electrocution. Turn off the AC mains and
use accepted and recognized safety
precautions to avoid exposure to the risk of
electric shock or electrocution. Electric
shock may cause severe injury or death.
1. Locate and identify the load bay field wire
connections (AC+) for each phase green in the
traffic control cabinet.
2. Determine the appropriate length of wires
required to connect the auxiliary interface
panel to the wiring points in the load bay of
the traffic control cabinet.
3. Strip 1/4 inch of insulation from both ends of
the wires being used.
4. Insert one end of each wire into the desired
terminal of the auxiliary interface panel and
tighten the screw. (For example, Phase 1
green is labeled GRN PHASE 1 on terminal
block TB2.)
5. Repeat step 4 for all desired phase greens.
6. Route the wires through the traffic control
cabinet to the AC side of the load switches in
the load bay. Install spade lugs on the wires.
7. Insert one wire at a time into the correct
terminal in the load bay and tighten the
screw.
8. Locate and identify the AC neutral connection
in the traffic control cabinet.
9. Determine the appropriate length of wire
required to connect the auxiliary interface
panel to the wiring point of the AC neutral
connection in the traffic control cabinet.
10. Strip 1/4 inch of insulation from both ends of
the wire being used.
11. Insert one end of the wire into the AC neutral
terminal (AC NEUTRAL on TB2) of the
auxiliary interface panel and tighten the
screw.
12. Route the wire through the traffic control
cabinet to the AC neutral terminal. Install a
spade lug and connect the wire to the AC
neutral terminal.
13. Verify that your wiring is correct, and the
connections are tight.
14. Verify that the green sense wires are
connected correctly.
To do this, open ITS Explorer and select
Intersection Configuration, then Real-Time
Activity, then View Vehicles and Intersections
Heard. When the Real-Time Status window
opens, select the Tracking Status tab and
compare the Current Greens field to the active
greens indicated on the controller or conflict
monitor/MMU.
Reconnect any green sense wires that may be
incorrect.
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