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User's Manual

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Introduction
MCPS4080 System Operation 3
2001 Spectrian Corporation. All rights reserved.
1.3 Introduction to the MCPS4080 Family
The MCPS4080 is a modular, ultra-linear PCS-frequency amplifier system
providing up to 290 Watts (total) of output power. Designed for maximum
flexibility and reliability, the MCPS4080 can increase the range and capacity of
new or existing base stations.
Modulation Formats
The MCPS4080 can amplify any number of signal carriers using IS-136 TDMA,
IS-136HS GSM, IS-136HS EDGE, or IS-95 CDMA modulation up to the
maximum rated system output power.
Modularity
The MCPS4080 family is designed for operation with 1 to 4 amplifier modules,
each providing up to 100 Watts of RF output power (exclusive of combining
losses).
Mounting Configurations
The MCPS4080 amplifier systems are available in a variety of configurations.
Mounting kits are available for installation in 23-inch, 600mm, 24-inch, or 25-inch
equipment racks. Multi-module shelves are 12 RU (21 in.) high. Single module
shelves are 3 RU (5.25 in.) high.
Peripheral Products
Spectrian offers optional products to assist in base station configuration and set-
up. Among these products are multi-port RF combiners, bandpass filters,
preamplifiers, and AC/DC power rectifiers. Please consult with the factory or
sales for more information on these peripheral products.
RF Interfaces
The Spectrian MCPS4080 has a single RF input for combined input signals, and a
single RF output to the transmit filter. There is also a single module configuration
with three input connectors combined within the amplifier and a single output
connector.
Alarms and Control
The MCPS4080 system provides visual status information through front-panel
LED indicators. Status information is also transmitted via a front-panel RS-232
port using Spectrian’s optional Graphical User Interface program.
The MCPS4080 can also be optionally equipped with additional alarm and control
interfaces, including dry-contact or TTL alarm connections RS-232 or RS-422
interfaces to network operations and administration systems.
The MCPS4080 is designed to enable system maintenance without removing the
amplifier from service. In multi-module (high power) systems, the RF modules
can be hot-swapped during operation without affecting calls in process. The
Amplifier Management Module (AMM) can be easily replaced in the field. The
amplifier modules are designed so the cooling fans can be replaced in the field by