Service Manual

GSM-205-323
Tx blocks overview
31st Oct 01
Tech. 5–32
Technical Description: Horizon macro indoor
CONTROLLED INTRODUCTION
68P02902W07-B
View of basket
for Tx blocks
Figure 5-17 shows the top panel and basket which holds the Tx blocks.
ig.235.rh
SLOT FOR SURF MODULE
LOCATION HOLE
FOR INTERFACE
PANEL
VENTILATION PANEL
(LOCATED ABOVE PSMs)
BASKET TO HOLD
THREE Tx BLOCKS
HOLE FOR ONE Tx BLOCK
CTU CONNECTIONS
CABLE HOLE FOR FIBRE
OPTIC EXTENSION CABLES
Figure 5-17 View of top panel showing Tx block basket
Transmit block
connectors
The transmit block connectors are of the following types:
 SMA connectors for cables to transceivers.
 7/16 connectors to antennas.
 N-type duplex receive connectors, also used by HCU, CCB inputs and
feedthrough plate.
The SMA connectors are underneath the unit (for ease of connection to the
CTUs), and the other connectors on top, as shown in Figure 5-18.
NOTE
All unused SMA inputs to DCF, DDF and HCU modules
must be fitted with 50 ohm load terminations.