Installation and Operating Instructions
Table Of Contents
- and
- Dual Band
- Compact Bi-Directional Amplifiers
- The switch on the RF amplifier enables the AGC function. If the AGC is disabled then the amplifier gives maximum gain.
- MGC: The RF gain of the CBDA can be reduced by about 15 dB using the continuos trimmer on the amplifier. The RF gain is at maximum when the trimmer is at counter-clockwise direction. To reduce the gain, turn the trimmer clockwise using a screwdriver. Tur
- The AGC and MGC functions for the uplink path are reached by opening a small cover located on the DBA side adjacent to the Mobile antenna port. For the downlink path the window is located on the side near the Base antenna port.
- Limited Warranty
CBDA Monitor and Alarm Function
Block Diagram
Green LED
+28 V
Power On Indication
DL RF Power
Detection
(from DL Power
Amplifier)
Power
Sensor
DL Low RF
Power Alarm
8 Pin
Connector
Sum of all
Alarms
Summary
Alarm
(Shown at
Fault Position)
Current
Sensor
UL Power Amplifier
Current Alarm
+28 V
To UL Power Amplifier
DC Supply
Red LED
Red LED
To pin 2 of D9 Alarm
connector
To pin 3 of D9 Alarm
connector
To pin 4 of D9 Alarm
connector
Alarm relay connection to D connector:
Pin 2 to 4 open at any fault; short at no fault
Pin 2 to 3 short at any fault; open at no fault
Dekolink Wireless Ltd.;16 Bazel St.Qiryat-Arieh Petah-Tikva Israel, 49510
Tel- 972-3-9180-180; Fax-972-3- 190-9180 ; Email-marketing@dekolink.com
;
Web site-
www.dekolink.com rev 0 11/04 page 8 of 16