Table of Contents
Advertisement
Pins 49-55
UNUSED
Pin 58
VOTER DATA IN
This is used in a Voter system. Data from the
voted site is injected at this pin.
6.12.14 P100 EXTERNAL OUTPUTS
Connector P100 contains the audio and data out-
puts to the terminal block on the back of the Repeater
cabinet. These outputs are connected to other external
devices. The input and output connectors for the con-
nector are defined as follows.
Pins 1-6
UNUSED
Pin 7
3.5V
This is the 3.5V DC TCXO reference voltage
from the Exciter to the MAC.
Pin 8
TX DATA OUT
This output contains trunking signaling data and
CWID data when enabled at jumper J106 and used
with external optional equipment.
Pin 9
TX DATA IN
This input would normally contain trunking sig-
naling data, CWID data, and an externally summed in
signal. This input is enabled at J106 and is used with
external optional equipment.
Pin 10
EXT REQ1
This input provides for external requests from
optional equipment.
Pin 11
EXT MOD
This input provides for external wide band modu-
lation of the Exciter with out any filtering. This input
is not used at this time.
Pins 13-26
UNUSED
Pin 27
RX WB AUDIO
The Receive Wide Band Audio from the Receiver
audio demodulator through the RF Interface Board.
The typical amplitude is 387 mV RMS (-6 dBm) and
2V DC with Standard TIA Test Modulation into the
receiver.
Pin 28
A D LEVEL
This is the Audio/Data Level output.
Pin 29
TX MOD
The output of this pin is produced by audio and
data inputs to the Repeater to produce the signals on
this pin. This signal goes through the RFIB and then
to the Exciter.
Pin 30
UNUSED
Pin 31
RX VOICE
This is receive audio output connected to the
backplane.
Pin 32
TX VOICE
This is transmit audio input connected to the
repeat gate.
6.12.15 J100 A D LEVEL TEST POINT
This test point located on the front card edge is
used during alignment to monitor audio and data.
6.12.16 J101 SPEAKER/MICROPHONE
This jack is used in conjunction with J102 when a
combination speaker/microphone is used during setup
and testing of the repeater.
6.12.17 J102 LOCAL MICROPHONE
This jack is used for a microphone to key the
Exciter and inject transmit audio.
6.12.18 J103 GROUND
This jack provides a ground connection for the
MAC when monitoring the test points.
6-45
CIRCUIT DESCRIPTION
March 1999
Part No. 001-2009-600
Advertisement
Table of Contents
