User's Manual

Introduction
MCPS4080 System Operation 5



2001 Spectrian Corporation. All rights reserved.
and distortion products such that the distortion products cancel. The error loop
provides the adjustments and controls necessary to assure that the amplitude,
phase and delay of both signals result in the desired cancellation.
1.3.1.3 Amplifier Management
The Amplifier Management Unit (AMU) monitors and controls performance of
the various subassemblies within the RF module. The AMU provides operating
status information via front panel LEDs. Within a multi-module system, the AMU
provides status to the MCPS4080 AMM.
1.3.2 MCPS4080 Amplifier System
A fully-equipped MCPS4080 consists of a rack-mounted shelf containing up to
four RF modules. Multi-module systems contain an Alarm Management Module,
and an internal divider/ combiner. A block diagram of the system is shown in
Figure 2.
Figure 2 System Block Diagram
2
÷
÷÷
÷
100 W MCPA
Modules
3
4
1
Alarm Management
Module
Splitter
Basestation Interface
RS-422 or RS-485
Σ
ΣΣ
Σ
Combiner
RF
Input
RF
Output
Status Port
RS-232