Service Manual

GSM-205-323
Equipment introduction and manual definition
31st Oct 01
Tech. 1–4
Technical Description: Horizon macro indoor
CONTROLLED INTRODUCTION
68P02902W07-B
Configuration
information
Configuration information can be found in System Information: BSS Equipment
Planning: (GSM-001-103) Order number 68P02900W21.
Finding
information in
this manual
Each category and chapter has a table of contents (TOC). Headings are
designed to convey contents accurately, to enable manual search. The index
provides an alternative method of finding subsections of information. This
chapter provides a summary of the equipment, to enable readers to understand
terminology and thus locate information via the TOCs and index.
The service manual set comprises the four categories below:
 Category 323
Provides an introduction, specification, and technical description.
 Category 423
Provides the information for installation and commissioning.
 Category 523
Provides information on maintenance and repair, with procedures to
change Field Replaceable Units (FRUs).
 Category 623
Provides list of options and spares, with diagrams to illustrate FRUs.
The category 323 technical description is divided into chapters based on
functionality as shown in Figure 1-2:
 Overview and specifications
This chapter provides a summary of the equipment to enable the reader to
understand terminology, and thus locate information via the TOCs and
index.
 Cabinet structure, including:
Interface panel, main cage, door and optional hood.
 Temperature control system, including:
2-fan and 4-fan.
 Cabinet power supply, including:
PSM, BPSM and circuit breaker module.
 RF modules, including:
CTU, SURF, Tx blocks and CCB.
 Digital modules, including:
MCUF, NIU, T43/BIB connections, FMUX and alarm module.