Cable and connector details are easy to overlook when traffic signal heads and controllers are quoted separately. They should be treated as system interfaces: the project must identify what is supplied, what is installed on site, and how the connection is documented.
Document the interface at both ends
For each circuit, record the signal head connection, cable entry, terminal or connector reference, controller or cabinet connection, voltage, and available wiring drawing. Where an existing system is retained, include clear photos and label information where permitted.
RFQ checklist
- Signal head and controller configuration reference.
- Required voltage, circuit identification, and approved wiring information.
- Cable route, estimated lengths if supplied by the project, and installation environment.
- Connector, terminal, gland, conduit, or cable-entry requirement shown on the drawing.
- Responsibility for cable supply, field termination, testing, and commissioning.
Do not infer compatibility from appearance
Two signal heads may appear similar while using different wiring arrangements, connectors, or controller requirements. A cable quotation should not be finalized from a photo alone. Ask the responsible project engineer or integrator to confirm the approved interface before the order is released.
Keep installation scope visible
Separate product supply from field cable pulling, conduit work, termination, and testing. These activities depend on local site conditions and project responsibility. A clear scope note helps avoid an unpriced or unassigned installation task.
For controller-side information, start with the controller RFQ checklist. Send wiring references and the project schedule through GQ Traffic.
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