ASL INTERCOM iPAM400 - Fault Finding and Troubleshooting; Mainframe Indicator Status and Faults

iPAM400 – Product Manual
U-0629-0171.doc – Issue: 04 complete, approved
Page 91 of 138
7 Fault Finding
The iPAM400’s front panel indicators provide the system’s overall status indication; see Table 2 and Table 3. The rear panel Audio In/RS485 Port LEDs indicate the
RS485 communication status, as shown in Table 4.
Table 2 Mainframe indicators
Mainframe Indicators
Indicator Indication
mains
Fault indication:
OFF (AC mains is not present)
1
Operational fault symptom:
• DC supply present: no operational failure.
• DC supply not present: loss of all loudspeaker circuit functionality on entire mainframe.
Suggested actions:
1. Check front panel AC mains isolation switch.
2. Check power supply and power supply wiring.
3. Check AC mains supply and battery supply fuses; see Section “8.13.1 AC Mains Supply / Battery Supply / Auxiliary DC Supply Output Fuse” (page 111).
4. Replace iPAM400 mainframe; see Section “8.11 iPAM400 Mainframe Replacement” (page 108).
battery
Fault indication (if DC supply is used): OFF (DC supply is not present)
2
Operational fault symptom:
• AC supply present: no operational failure.
• AC supply not present: loss of all loudspeaker circuit functionality on entire mainframe.
Suggested actions:
1. Check front panel battery isolation switch.
2. Check power supply and power supply wiring.
3. Check DC supply fuse; see Section “8.13.1 AC Mains Supply / Battery Supply / Auxiliary DC Supply Output Fuses” (page 111).
4. Replace iPAM400 mainframe; see Section “8.11 iPAM400 Mainframe Replacement” (page 108).
1
The mainframe fault will also illuminate if the DIP SW2 is set to ON enabling the fault reporting.
2
The mainframe fault will also illuminate if the DIP SW3 is set to ON enabling the fault reporting.