TX RX Systems 434B-83H-01-M-110/48, Инструкция по установке и эксплуатации

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7;5;6\VWHPV,QF Manual 7-9547-1 12/09/14 Page 32
mounted in the same rack just beneath the base
unit. The optional multicoupler expansion deck will
require 1 “rack unit” of space.
Narrowband Filter
There are a total of nine different narrowband filters
available for use with your TTA system. There are
four filters that operate in the 792 to 806 MHz
range and five filters in the 806 to 824 MHz range.
Table 8
lists all of the optional narrowband filters
available. The additional filter will provide a nar-
rower pass window for the system. The optional fil-
ter is connected to the back of either the base
control unit at the two ports labeled Pin and Pout
as shown in
Figure 19
. It is recommended that the
filter be mounted in the same rack just above the
control unit. The optional filter will require 2 “rack
units” of space.
If the system is installed without the
optional filter then a supplied jumper
cable MUST be installed from the Pin
to the Pout connectors in order to
maintain the RF signal path through
the system.
INSTALLATION KIT CONTENTS
Included in the installation kit are:
1) Panel-mounted narrowband preselector.
2) Pair of 24-inch BNC / N cables.
3) Required installation screws.
INSTALLATION PROCEDURE
To install the optional narrowband filter in your TTA
system perform the following steps;
Electrical power to the Base Control
Unit should be turned off during instal-
lation of the optional filter.
1) Disconnect the small BNC-BNC jumper cable at
the back of the Base Control Unit. This cable is
connected to the BNC connectors labeled FIL-
TER. The jumper cable must be installed on
systems that do not have an optional filter in
order to ensure RF continuity through the deck.
On systems with an optional filter installed RF
continuity is provided by the filter.
NOTE
NOTE
Model # Operating
Range
(MHz)
Band-
width
(MHz)
89-83F-03-03 792 to 806 3
89-83F-03-06 792 to 806 6
89-83F-03-09 792 to 806 9
89-83F-03-14 792 to 806 14
89-86A-03-03 806 to 824 3
89-86A-03-05 806 to 824 5
89-86A-03-10 806 to 824 10
89-86A-03-15 806 to 824 15
89-86A-03-18 806 to 824 18
Table 8
: Optional Narrowband Filters.
Figure 19:
Connecting an Optional Filter
to the Base Control Unit.