122 Connection TB8100 Installation and Operation Manual
© Tait Electronics Limited June 2005
TaitNet RS-232
This system interface board is fitted to reciters bearing the product code
TBA4xxx-0L0x or TBA5xxx-0L0x. If purchased separately, it has the
product code TBA10L0. It is designed for use with MPT trunking systems,
and also for use with multiple base station systems. It provides the following:
It is fitted with a 15-way female D-range connector (TaitNet), a 9-way
female D-range connector (RS-232), and a 2-way auxiliary DC input
connector. The pin allocations for the D-ranges are listed in the following
tables, and the pin allocations for the DC input connector are provided in
“Reciter Auxiliary DC Input from PMU” on page 113.
The rear-mounted RS-232 serial port facilitates the connection of multiple
base stations to a Service Kit or Alarm Center using an APS (asynchronous
■ transformer isolated 600Ω balanced audio I/O
■ high impedance unbalanced audio I/O
■ digital I/O (3 outputs, 1 input)
■ Tx key
■ Rx gate
Pin Signal Name Signal Type Notes
1 Rx line out +
audio output transformer isolated line
2 Rx line out –
3 Rx audio out audio output
4 Rx gate output open collector
5 Tx key input
6 Tx audio in audio input
7 Tx line in +
audio input transformer isolated line
8 Tx line in –
9 +AUX_V power output from auxiliary DC input
10 digital out 3 output open collector
11 no connection
12 digital out 1
a
output open collector
13 digital out 2
14 digital in 1 input 5V logic
15 ground ground
a. If a base station with a 12V PA is configured for Deep Sleep, digital out 1 is dedicated to Power Saving control and
should not be used for any other Task Manager function.
external view
J
B
C
D
E
F
G
H
I
1)
1!
1@
1#
1$
1%
Pin Description Links
1 not connected
2 receive data
3 transmit data
4 not connected
5ground
6 not connected
7 not connected
8 not connected
9 not connected
h
j
b
g
i
c
d
e
f
external view
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