Andrew Corporation – Base Station Systems Group Page 5
Proprietary – Use pursuant to Company Instruction
RFIM LEDs
RFIM LED Status
Alarm Severity
Possible Failure Modes
Green: “ON”
Yellow: “ON”
Red: “ON”
Initial Power-up of
MCPAs.
NONE
Green: “ON”
Yellow: “FLASHING”
Booting or remote
loading of RFIM
Firmware
NONE
Green: “ON”
Normal Operation
NONE
Green: “ON”
Yellow: “ON”
Minor
1. RFIM internal temperature high (over approximately 75°C)
2. “Minor” failure from one or more MCPAs as follows:
a. MCPA Fan(s) failure
b. MCPA high internal temperature (approximately
between 80°C and 90°C)
c. MCPA values indicating: Poor Return Loss (3–8 dB)
3. Filter Module high internal temperature (above
approximately 80°C)
Green: “ON”
Red: “FLASHING”
Major
1. “Major” failure or one or more MCPAs as follows:
a. RF disabled via MCPA panel switch or RFIM command
b. RF Overdrive (gain reduced)
c. DC voltage our of normal range
2. Communications problem from RFIM to Filter Module.
3. Filter Module current out of range.
Green: “ON”
Red: “ON”
Critical
1. RFIM self test fails.
2. RFIM internal regulators failed.
3. Filter Module missing or loose. Filter Module thumbscrew(s)
not tight. Filter Module thumbscrew switch “OPEN”.
4. Filter Module indicating: Poor Return Loss (0-3 dB)
5. Sector cannot process traffic (i.e. MCPA module(s) failure).
FILTER MODULE LEDs
Filter Module LED status
Alarm Severity
Possible Failure Modes
Green #1: “ON”
Green #2: “ON”
Normal Operation
NONE
Red #1: “ON”
Critical
Replace Filter Module
Red #2: “ON”
Critical
Replace Filter Module
