BUTTON RELAY
4) SIGNAL FAIL ALARM CIRCUIT
OR
Signal Lamp Failure Acknowledgement Button Relay (GXACKNR)
- If any signal become blank, GXR drops, which activate the signal failure buzzer and light up the signal failure indication on the panel.
- The SM acknowledge by pressing signal lamp failure ACK button thereby signal lamp failure acknowledgement button relay(GXACKNR) energizes.
Step 1
Step 2
- Thereby the buzzer stop ,but the indication remains ON till the lamp is
replaced or the fault is rectified by S&T personal.
- GXR is made slow to release there by it does not drop during aspect changing
period and give false alarm.
4) SIGNAL FAIL ALARM CIRCUIT
OR
Signal Lamp Failure Acknowledgement Button Relay (GXACKNR)
- If any signal become blank, GXR drops, which activate the signal failure buzzer and light up the signal failure indication on the panel.
- The SM acknowledge by pressing signal lamp failure ACK button thereby signal lamp failure acknowledgement button relay(GXACKNR) energizes.
Step 1
Step 2
- Thereby the buzzer stop ,but the indication remains ON till the lamp is
replaced or the fault is rectified by S&T personal.
- GXR is made slow to release there by it does not drop during aspect changing
period and give false alarm.
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