Product Overview; General Description - ADC ClearGain Dual Inline Tower Mounted Amplifier System User Manual

1 PRODUCT OVERVIEW

1.1

General Description

The ClearGain 1800 or 2100 MHz Dual Inline Tower Mounted Amplifier (TMA) system are
composed of some combination of three functional components: a ClearGain Power Distribution
Unit (PDU), a Masthead Unit (MHU) / Tower Mounted Amplifier (TMA), and a Bias-T.
shows where these components are located in a typical application on a communications tower.
One PDU may support up to three dual inline MHUs of the same frequency. Each MHU requires
a separate Bias-T. The ClearGain TMA system also includes power cables and alarm cables.
MASTHEAD UNIT (MHU)
ClearGain
BASE
TRANSCEIVER
STATION
Figure 1. Functional Components of a ClearGain TMA System
DUAL
INLINE
BIAS-T
BTS ANT
Bias-T kit
Freq: 800 - 2200MHz
Temp: -40 to +65 C
ASSEMBLED IN
Input: 5 to 24VDC
KOREA
Max Current: 2A
Date: YYYY/MM/DD P/N: 1344027
S/N: XXXXXXXXX
DC
ClearGain PDU
G W
B R
MHU
- + NO COM NC FAIL G A B
INPUT ALARM RS485 CONNECT
ADCP-75-214 • Issue 2 • September 2006
Figure 1
OK OK OK
MHU 1 MHU 2 MHU 3
21297-B
© 2006, ADC Telecommunications, Inc.
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