| State | Cause | Solution |
|---|---|---|
| All LED indicators are OFF after power supply is connected | The power line is not operational | Check the voltage of the power line connected to Nayar Switch |
 |
|
In case of using the 12V Output of the GSR, verify that GSR is powered on |
| |
Wiring of DC connector is incorrect | Check the wiring of the DC connector |
| Internet connectivity LED is not lit up (Machine room Nayar Switch) | GSR is not providing Internet connectivity | Check that GSR is powered on |
| |
|
Confirm RJ45 cable is on LAN connector |
| |
RJ45 cable is not working correctly | Substitute RJ45 cable |
| Internet connectivity LED is not lit up (Lift car Nayar Switch) | Microswitch configuration is incorrect | Verify that the configuration of bus termination resistors at 3.3.- Configuration of bus termination resistors |
| |
IPBUS wiring is incorrect | Check IPBUS wiring from installation schematic shown at 3.3.- Configuration of bus termination resistors |
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