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z Status and Definition of ALARM indicators; Alarm LED only works for downlink signals
Status
ALARM
It is working in linearity
Green
Warning: Input signals may be not enough, so please check on coverage
effect, do not do anything if it is good; otherwise please adjust the repeater
system to get better coverage.
A little bit stronger input signals or slight self oscillation have occurred.
Orange
Solution: Please adjust antennas or use MGC to reduce the repeater gain, till
you find “edge point” with green LED (I.E. the Alarm LED must stay at green
color, and at the edge of turning Orange), and let the repeater work at this
point. MGC is the last measure to take as it will influence on coverage.
Red
There are strong input signals or severe self oscillation, measures must be
taken (please note that our repeaters have auto shut off function, so the red
color status can only maintain 5 seconds).
Off
Repeater breaks down, or severe self oscillation leads to auto mute. Please
re-plug in and check if alarm LED turns red, if it is, please take measures to
keep alarm LED green; if it maintains off, it means the power break down.
Remark: Please note that Alarm LED works on repeater downlink signals only. I.E. the repeater input
signals from CELL TOWER.
Single system booster only has one set of power and alarm LEDs, while dual system have two sets of
power and alarm LEDs, and three system repeaters have three sets of LEDs. Each system has own
relevant LED and please refer to the correct LED for system performance evaluation.
Then booster with plastic closet is designed with LEDs of “Alarm LOW” and “Alarm HIGH”. When it is
used for single system of CDMA800, GSM850 and GSM900, only “Alarm Low” LED works, and “Alarm
HIGH” LED is no use; when it is used for single system of DCS, PCS, CDMA1900, WCDMA or AWS,
“Alarm HIGH” LED works, and “Alarm LOW” LED is no use. When the booster supports two systems,
“Alarm Low” and “Alarm HIGH” both work and support relevant low and high frequencie
Status
Definition
Green Normal
Off DC power problem