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Silent Knight
5207
Bus Trouble

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Troubleshooting Tip

When diagnosing codes, always check the event history log first. Many trouble conditions are intermittent and tied to environmental factors like temperature or moisture.

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BUS TROUBLE: SK-5207 Trouble Code | Fire Alarm Resource Center

BUS TROUBLE

trouble

Silent Knight SK-5207

91 views·0 field notes

What This Code Means

The annunciator data wires are shorted or reversed.

Common Causes

1Incorrect wiring at the annunciator
2Shorted communication bus
3Reversed polarity on data lines

Resolution Steps

Check the wiring between the panel and the 5230 annunciators for shorts or reversed connections.

Manual References(2)

1silent knight5207Installation2003p. 80, 87, 17, 32, 51 +4Open

2silent knight5207Operations1995Open

Field Notes

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Related Codes

A1Indicates a trouble condition on notification circuit 1 (bell output 1) or that the power supply and panel voltage selections are not the same.A2A trouble condition exists on notification circuit 2 (bell output 2), or the power supply and panel voltage selections are not the same.DATA LOSTThe communicator has lost data that was being transmitted to the central station, or the alarm memory buffer is full.FAILED DFThe communicator has failed to report an event to the central station after the programmed number of attempts have been made.L2A trouble condition or fault exists on phone line 2.

Related Questions

How do I wire Class B vs. Class A zone loops on the SK-5207, and what end-of-line resistor value is required?What does the P3 (Earth Ground Fault) trouble code mean on the SK-5207, and how do I isolate the fault?How do I program Relay 3 on the SK-5207 to activate on all trouble conditions?

All SK-5207 trouble codes SK-5207 panel page