FAQ:Cab Bus Connectors
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Using a 5 pin 180º DIN connector. From the left, with keyway at the bottom, going clockwise:
- +12 Volts (nominal)
- "A" lead of RS-485 signal
- "B" lead of RS-485 signal
Three Pin (TRS) Phone Plug
- Tip: +12 Volts (7.5 to 16 Volts DC is OK)
- Ring: RS-485 "A" lead
- Sleeve: Ground
- Main article: Modular Connector
This connection is used for the Cab Bus. The UTP (Utility Throttle Panel) has these connections.
- +12 VDC
- A lead of RS-485 signal
- B lead of RS-485 signal
Only the 4 inner wires are used. This is the preferred interface.
It is very important to get the correct type of cable. Using a cable which flips connections will damage your equipment.