User's Manual

ManualsBrandsAndrew Wireless System ManualsElectronicsION-U Remote Unit for cellular systems

4. Commissioning

MF0200A5C_ION-U_L_7_80-85_17EP_19P.docx Manual for ION

-U Page 57

4.5.3. Status LED alarms

For local supervision, a status LED on the connector panel of the Remote Unit

adjacent to the Expansion ports provides a visual warning of an alarm condition. The

color of the LED indicates the severity of the alarm. Detailed alarm information is

available through the ION-U software interface. This table lists the alarm conditions

and possible on-site measures that could be performed to resolve the issues

responsible for triggering the alarms.

Alarm Name Description Remedy

Default

Severity

LED

DL optical power fail

Received optical power

below minimum threshold

check fiber connections and

transmitted optical power

major Red

Temperature Alarm temperature too high check ventilation and environment warning Green

VSWR Alarm

bad RF cabling /

mismatched antenna

check cable / antenna critical Orange

RF Low Output

CELL700

RF signal too low

check BTS output level/attenuator

configuration/RF cabling

minor Green

RF Low Output CELL

850

RF signal too low

check BTS output level/attenuator

configuration/RF cabling

minor Green

RF Low Output LMR

800

RF signal too low

check BTS output level/attenuator

configuration/RF cabling

minor Green

RF Low Output PCS

1900E

RF signal too low

check BTS output level/attenuator

configuration/RF cabling

minor Green

RF Low Output AWS RF signal too low

check BTS output level/attenuator

configuration/RF cabling

minor Green

DL CELL 700 band

alarm