Pub. 42004-605L2B
Model 701-804 SmartSeries
®
Handset Station with Auxiliary Jack
Page: 10 of 16
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03/04
Fault Message
Cause and Effect
Possible Solution
Supervised Audio
Path
Handset
Cause
—The station failed its internal health
check of the Handset Amplifier PCBA.
Effect
—The station disables the handset
amplifier health-check function after the first
failure. This is a non-restorable fault.
•
Replace the Handset
Amplifier PCBA.
•
Replace the Base-16
PCBA.
Supervised Audio
Path
Page Amp
Cause
—The station failed its internal speaker
amplifier health check.
Effect
—The station disables the speaker
amplifier health-check function after the first
failure. This is a non-restorable fault.
Replace the Base-16 PCBA.
Supervised Audio
Path
Speaker Voice Coil
Cause
—The station is detecting no ambient
noise at the speaker or is detecting an ambient
noise lower than the configured failure
threshold. This may occur if there is a fault in
the speaker wire or a fault at the voice coil.
This also may occur if the ambient noise at
the speaker is too low, as is the case in a quiet
room.
Effect
—The station continues measuring
speaker ambient noise. When acceptable
noise levels are subsequently measured, a
restore message is sent to the MCU.
•
Verify that the speaker
wire is connected and
intact.
•
Verify that the voice coil
is connected and intact.
•
Verify that the Offset
Level adjustment is set
correctly.
•
Replace the Base-16
PCBA.
Polled device
Cause
—This message is output by the MCU
when it loses communication with the station.
This may occur if there is a fault in the page
line, if the station is powered-down, or if there
is some fatal malfunction within the station.
Effect
—The MCU continues to attempt
communication with the station. A restore
message is output when communication is
resumed.
•
Verify that the page line
is connected and intact.
•
Verify that the station is
installed correctly.
•
Replace the Base-16
PCBA.
Polled End-of-line
device
Cause
—This message is the same as the
“Polled device” fault, except that the affected
station has been defined as an end-of-line
station in the MCU configuration.
Effect
—When this fault occurs, the red
EOL
FLT
LED on the Page/Party
®
Interface (PPI)
bezel lights. The LED extinguishes and a
restore message is output when
communication with the station is resumed.
•
Verify that the page line
is connected and intact.
•
Verify that the station is
installed correctly.
•
Replace the station
assembly.