Maxon Telecom UM-SL55 - Manual (Page 13)

DIAGNOSTIC MESSAGES
In addition to the low battery condition, a flashing red status
LED may also indicate fault conditions
Should your radio apparently not operate correctly, replace
the battery with one known to be fully charged. If the
condition persists, or the radio emits an unexpected
continuous pattern of audio beeps, or will not transmit or
receive as it does normally, return the radio to your Maxon
dealer.
UNPROGRAMMED CHANNEL
If your radio has been set-up for less than the maximum
number of channels, turning to a blank channel will cause
your radio to beep and the status LED will flash red,
indicating that the channel is unusable.
RECEIVE ONLY CHANNEL
Your radio may be set-up to receive on a channel but not to
transmit. If PTT or call functions are started on such a
channel, the radio will beep and the LED will flash red.
ENGLISH
11
STATUS DESCRIPTION LED COLOUR AUDIBLE ALERT
NORMAL Power On - Ready N/A Melody
Busy Amber N/A
Correct Call Green N/A
Transmit Red N/A
Busy Lockout Amber,Flashing Single Tone
IN SCAN Scan is initiated Green,Flashing N/A
WARNING Time-out Timer N/A Single Tone
Battery Low Red,Flashing Four Tone,Repeated
ERROR EEPROM Error Red,Flashing Single Tone,Repeated
PLL Error Red,Flashing Double Tone,Repeated
Filtering Error Red,Flashing Three Tone,Repeated