Figure 4-14 Assigning Inputs For External Crossing Controller - Siemens GCP5000 Instruction & Installation Manual

SSCC APPLICATIONS & PROGRAMMING GUIDELINES
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4.12 External Crossing Controllers
An external crossing controller may be used with the GCP5000 (GCE) to replace the internal
crossing controllers or to supplement the lamp current provided by the internal crossing
controllers. An appropriate crossing controller such as the SSCC IIIA, SSCC III Plus, or SSCC
IV may be used.
4.12.1 External Crossing Controller Or Relay Based Control
To accommodate an external crossing controller or relay-based crossing control the AND 1 XR
signal of the GCP5000 (GCE) must be mapped to an external output as shown in Figure 4-14.
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The external output can be connected to an XR relay.
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The external output can be connected to the appropriate activation input of the
crossing controller.
For additional information, see Section 4.6, External Crossing Controllers, of this manual.

Figure 4-14 Assigning Inputs For External Crossing Controller

4.12.2 External Crossing Controller For Additional Lamp Current
Where the lamp current requirements of the crossing exceed the 40 Amp combined capacity of
the two internal crossing controller modules, an external controller may be used to provide
supplemental lamp current. Either SSCC-1 or SSCC-2 may be used to activate the external
controller. The setup to enable activation by SSCC-1 is as follows:
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On the SSCC 1 Configuration menu set Aux-1 Xng Ctrl Used to Yes and the Aux-1
Xng Ctrl Hlth IP to Yes.
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When the Aux-1 Xng Ctrl Used is set to Yes, this enables two additional outputs,
AUX-1 Xng Control and AUX-1 Lmp Control.
Map Aux-1 Lmp Control to an output and set an input as Aux-1 Xng Ctrl Hlth as shown in
Figure 4-15. Connect this output to the appropriate gate position input of the external crossing
controller. Connect this input to the gate output of the external SSCC.
SIG-00-22-02
Version: B.1
4-32
JUNE 2022 (Revised September 2022)