Service Manual

GSM-205-323
Cabinet structure of Horizon macro indoor
31st Oct 01
Technical Description: Horizon macro indoor
68P02902W07-B
CONTROLLED INTRODUCTION
Tech. 2–3
Filled cabinet
view
Figure 2-2 shows a cabinet with maximum number of modules installed. Further
information is detailed in the later technical description chapters.
CIRCUIT
BREAKER
MODULE (CBM)
RF MODULES
POWER SUPPLIES AND
CIRCUIT BREAKER
TEMPERATURE
CONTROL SYSTEM
DIGITAL
MODULES
T43/BIB
MCUF
ALARM MODULE
FMUX/NIU/BPSM
(NOT VISIBLE)
TWO 2-FAN UNITS
ONE 4-FAN UNIT
SIX TRANSCEIVERS
(CTUs)
THREE Tx BLOCKS
(DCFs SHOWN AS EXAMPLE)
ONE SURF (Rx)
THREE PSMs
(see NOTE)
INTERFACE
PANEL
CONNECTORS
TOP SECTION OF PLINTH
(SLIDES INTO BASE PLINTH)
DC POWER IN
NOTE Three PSMs = 2 + 1 redundant (if required). An optional
hold-up battery module may be installed instead of a
redundant PSM.
Figure 2-2 Cabinet, without door or hood, showing main components