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
Diagnostics Guide
The CBDA provides long term, carefree operation and requires no periodic maintenance.
This section covers possible problems related to the installation environment.
Top Cover LED Indications
Once the CBDA is installed the red LEDs on the top cover indicate uplink and downlink faults.
The green LED is AC power on indication.
Indication Cause Action
Downlink LED (on
cover) is ON
Indicates low RF power at
downlink path <15 dBm)
Check base antenna connection.
Check antenna alignment to base.
Use higher gain BDA
Uplink Amp LED (on
cover) is ON
Uplink amplifier over current
or undercurrent fault
Replace CBDA
These faults can be sensed remotely from the dry contact relay arms wired to the D9
connector at the back of the CBDA.
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
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