M8SL2-00-002-812 Installation and Configuration D3.5
© Copyright Tait Electronics Limited August 2004. All rights reserved.
3.1.2 Auxiliary Inputs/Outputs
The 15-way female D-range connector (SK13) located on the X800-56-PCB3 backplane
board allows for external connection to a number of T803 inputs and outputs. These
include the four T803 alarm inputs and the four T803 auxiliary outputs. Refer to Section
6.2 in Part G for backplane circuit and overlay diagrams.
The table below indicates the pin assignments of SK13
Pin Name Signal path Logic Description and specifications
1 +13.8V Output — +13.8V
DC
output. Maximum current = 900mA
2 RX-AUDIO-1-1
Receiver output –
with SW3-1 in ON
position (normal)
—
Unbalanced audio output from the receiver.
Should only be used with high impedance
loads (>10kW )
T803 input – with
SW3-1 in OFF posi-
tion
—
Unbalanced high impedance audio input
(>10kW ) to the T803. Level required for cor-
rect T803 operation = 230mV
rms
3 TX_EX LINE1_1 T803 output — Parallel connection to the 600Ω balanced Tx
Audio path between the T803 and the Trans-
mitter. Connection to these lines must be done
using a high impedance load to not upset the
match/levels. Output level = –4.4dBm (when
the T803 Line-In level is properly set-up or
when the T803 is in Test Mode).
4 TX_EX LINE4_1 —
5
TONE REMOTE
ALARM 0
T803 input
5V CMOS 0V =
active
T803 Alarm Input0.
Maximum input voltage = 5V
6
TONE REMOTE
ALARM 1
T803 Alarm Input1.
Maximum input voltage =5V
7
TONE REMOTE
ALARM 2
T803 Alarm Input2.
Maximum input voltage =5V
8
TONE REMOTE
ALARM 3
T803 Alarm Input3.
Maximum input voltage =5V
9RX-GATE-1
Receiver output
with SW3-6 in ON
position (normal).
Open collector 0V
= audio
Max applied voltage = 40V
Maximum sink current = 150mA
T803 input with
SW3-6 in OFF posi-
tion.
5V logic < 1.5V =
audio
Maximum applied voltage = 5V
10 TX_KEY_1 T803 output
Open collector 0V
= active
Maximum applied voltage = 50V
Maximum sink current = 250mA
11
TONE REMOTE
AUX0
T803 output
Open collector 0V
= active
T803 Auxiliary Output 0.
Maximum applied voltage = 50V
Maximum sink current = 250mA
12
TONE REMOTE
AUX1
T803 Auxiliary Output 1.
Maximum applied voltage = 50V
Maximum sink current = 250mA
13
TONE REMOTE
AUX2
T803 Auxiliary Output 2.
Maximum applied voltage = 50V
Maximum sink current = 250mA
14
TONE REMOTE
AUX3
T803 Auxiliary Output 3.
Maximum applied voltage = 50V
Maximum sink current = 250mA
15 GND ——Ground
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