User's Manual

User Manual
- 22 -
 Status and Definition of ALARM indicator:
Status
ALARM
Green
It is working in linearity
Note: Input signals may be not enough, please refer to the figures shown in
the device. Do not do anything if it is good; otherwise please adjust the
repeater system to get better source signal.
Green
Flickering
It is working with slight oscillation.
AGC activate 1~10dB.
Orange
Flickering
It is working with medium oscillation.
AGC activate 11~20dB.
Red
Flickering
It is working with deep oscillation.
AGC activate 21~30dB, and it will shut off after 5 seconds of Red.
Remark: Please note that Alarm LED works on repeater downlink signals only. I.E. the repeater input
signals from CELL TOWER.
Single system repeater 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 repeater 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 repeater supports two systems,
“Alarm Low” and “Alarm HIGH” both work and support relevant low and high frequencies
Status
Definition
Green Normal
Off DC power problem