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 16
mode the system will automatically switch back to
normal operation.
AMPLIFIER TERMINATION
The input of the tower top a mplifier can be
switched to an internal 50 Ohm load for diagnostic
purposes. As part of bench testing the system this
function needs to be tested. To temporarily inter-
connect the equipment, connect a cable between
the main port on the tower box and the main port
on the base unit. Also connect a cable from test
port connector to the test port connector
.
Using the
front panel display interface place the unit in the
terminate mode.The system will switch the input of
the tower top amplifier to the internal load. Note
that after 1 minute of being in the terminate mode
the system will automatically switch back to normal
operation. Signals applied to the antenna port of
the TTA will be greatly attenuated in this mode.
INSTALLATION
The following sub-sections of the manual discuss
general considerations for installing the system. All
work should be performed by qualified personal.
Bird Technologies provides the base control unit
and tower top amplifier box. All additional parts
Figure 8:
Test equipment interconnection for “bench testing” of system components.