| GF82.20-P-4102A | Door contact switches, location/purpose/design/function | 15.12.96 |
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Location | GF82.20-P-0002-01B | |
| Purpose | The status of the vehicle doors (open, closed) is indicated as an electrical signal by the door contact switches. | ||
| Design | The door contacts are designed as normally closed switches. (Switching contacts are open when doors are closed). | ||
| Function | If the door is open, the door contact switch then connects an input of the pneumatic system equipment (PSE), combined functions (A37) to ground. The PSE transmits the status as a CAN message. |