Operator's Manual

Installation of the CDR812 CI Wireless Inc.
MirrorCell Select CDR812 Manual
7-18
Rev. X1
7.11 Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
LED on Status & Control (S&C)
module is unlit.
1. Unit not turned on.
2. No power to unit.
3. S&C module failure.
4. Power supply failure.
1. Plug in/turn on unit.
2. Restore power to unit.
3. Replace S&C module.
4. Replace power supply.
LED on S&C module is lit but
cannot login to the repeater
1. Software emulation program
is not set properly.
2. Software emulation program
is not working properly.
3. Cables not functioning
properly.
4. Bad S&C module.
1. Verify program is set
properly.
2. Verify program is working
properly; replace if
necessary.
3. Replace cable.
4. Replace S&C module.
Poor reverse signal quality;
forward signal quality looks fine.
Excessive noise contribution to
BTS because gain set too high.
Reduce repeater gain setting.
Output power too low on forward
link.
1. Receiving too low of a signal
from donor site.
2. Gain not set correctly.
1. Verify adequate signal is
received; adjust donor
antenna if necessary.
2. Reset gain.
Receiving sufficient signal
strength but too much
interference to make a call.
Repeater goes into oscillation
because of insufficient antenna
isolation.
1. Improve antenna isolation:
• Further separate antennas
• Mount a shield between
antennas.
2. Reduce repeater gain.
7.12 Maintenance
CI Wireless’ MirrorCell CDR812 does not require preventative maintenance.