C20M-5B Five Signal Repeater
9
coverage area. Installation and connection of the antennas should follow the requirements as
following:
1
）
The outside antenna should be installed at the place with the strongest signal and
towards BTS.
2
）
The length of the cable, which connects the outside antenna and the repeater, should
be less than 20 meters.
3
）
Wrap the waterproof tape around the connection part of the outside antenna and
outdoor cable, in case of oxidization or corrosion.
4
）
The indoor antenna should be placed 5m above lower than the outside antenna, with
its direction not towards the outside antenna.
5
）
It will be better if there can be a wall between outside and inside antennas.
6
）
Outside antenna should connect to BTS port of the repeater while inside antenna to
the MS port.
Starting
1
）
If possible, please connect the grounding screws of the repeater and grounding of the
electrified wire with cable.
2
）
Make sure the feeder cables between repeater and antennas are firmly connected.
3
）
Connect the DC plug of the 12V/3A power adapter to the DC+12V port of the repeater.
Then put AC plug connecting to the nearby 220V power outlet.
4
）
Check if repeater can work normally or not, by checking the operation parameters on
the screen, according to the guides of the previous “Operation and Display Description” part.
5
）
Test signal intensity and dialing quality with mobile phone in the repeater coverage area.
Maintenance and Repairing
Frequently Ask Questions and Solutions
Problems
Reasonable Causes
Solutions
Screen and indicator
lights are off
Disconnected to power source
Check the power adapter and
power outlet, and reconnect it
“Run” Indicator Red
Isolation between outside antenna
and inside antenna is insufficient
Change the distance & direction
of outside & inside antenna, until
I.S.O is not flashing
