Service Manual

GSM-204-323
Equipment introduction and manual definition
31st Oct 01
Tech. 1–6
Technical Description: Horizon macro outdoor
CONTROLLED INTRODUCTION
68P02902W02-A
Functional
diagram of
Horizon
macro
outdoor
Figure 1-3 shows the functional modules of a Horizon macro . Only one
transceiver and one Tx block have been shown, and the thermal management
system and power supplies are also omitted, for clarity.
SWITCH (CONTROLLED BY CTU)
MCUF
FMUX
FMUX
TO FMUX OF
EXTENSION CABINET
6
1
NIU
TO NETWORK
NIU NIU NIU
RF
MODULES
DIGITAL
MODULES
UP TO SIX TRANSCEIVERS
(CTUs)
UP TO THREE
Tx BLOCKS
ANTENNAS (Tx and Rx
SEPARATE OR COMBINED)
SURF
Rx0
Rx2Rx1
Rx A Rx B
Tx
TO SURF or
MCell6 Rx OF
EXTENSION
CABINET
Tx FILTER
Rx FILTER
RF LOOPBACK
EXT
FMUX
1
1
TO FMUX OF
EXTENSION CABINET
TO FMUX OF
EXTENSION CABINET
0B 1B1A 2A 2B0A
Figure 1-3 Functional diagram of cabinet components