GAI-Tronics 12576-502 Посібник користувача - Сторінка 10
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Model 12576-502 & 12576-50215 Desktop Access Panels
Maintenance
Troubleshooting
Symptom
Access panel LEDs flash and
sonalert is sounding. The
panel is not operational.
Access panel speaker does
not broadcast.
Handset does not function but
push-button switches do.
Handset does not page.
Some or all push-button
switches do not function.
Handset receiver volume or
microphone volume is low.
Servicing Guidelines
1. Notify plant personnel of a system shutdown prior to servicing the unit.
2. Disconnect power before connecting external wiring or installing or removing the access panel.
Spare Parts
Model No.
Description
14919-113
Keypad Replacement Slide-In Labels (Set of 4)
40419-008
Power Supply Unit
e:\standard ioms - current release\42004 instr. manuals\42004-732l2c.doc
07/14
Possible Cause
The access panel has lost data communication with the Access Panel
Interface (API) card in the ADVANCE System Control Cabinet.
Possible Causes:
Disconnected data cable between the API card and access panel.
Data cable is connected to an un-programmed API card output.
Data cable polarity is reversed (observe +/− polarity).
Defective API card
Defective access panel PCBA
Speaker volume control is turned down
Defective speaker
Defective handset hookswitch. When the handset is off-hook, the
speaker is muted.
Defective hookswitch.
Hookswitch polarity is programmed backwards.
The access panel's paging destination is not programmed.
Defective page switch or bad page switch wire connection at the
PCBA inside the access panel.
Push buttons are not programmed
Defective keypad
The handset levels (mic, receiver and side tone) are set too low in
the system programming.
Defective handset microphone or receiver
Pub. 42004-732L2C
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