Tait TM8000 User Manual

TA2922 Universal Line Interface Service Manual 13
© Tait Electronics Limited March 2010
2 Circuit description
The TA2922 Universal Line Interface is the TEL production copy of the AM8000-
UIS board designed and manufactured by Tait Australia.
The Universal Line Interface is a TM8000/TM9000 internal options board which
occupies the internal options space within the TM series radio. It performs a range
of flexible audio and digital interfacing between the radio and outside world via a
9-way D-range socket.
The function of each pin in the D-range socket can be user-selected to any of the
board’s available analogue or digital I/O lines by way of a solder shorting link in an
I/O matrix. A number of pre-existing variants of the TA2922 are available with
pre-populated pin functions and pre-calibrated line levels. Refer to “Connections”
on page 9 for pin descriptions on the available variants.
Key functions of the board are:
■ each external connector pin function can be user-defined in hardware links
■ isolated 2-wire or 4-wire balanced 600 ohm audio interface
SK2
internal options
connector
TA2922-xx line interface board
13V8 switched
AUX-MIC
RSSI
AUD_TAP_OUT
RX_BEEP_IN
RX_AUD
AUD_TAP_IN
TX and RX data
GPIO lines (x7)
1
4
8
2
5
7
6
17-18
9-15
3.3V regulator
3.3V
line out audio
audio source
VR1
W
600
transformer
level monitor
source select
VR2
W
600
transformer
VR3
18F45K20
micro
controller
output
shift
register
status
LED
supply voltage
monitor
profile select
link (LK9)
crystal
oscillator
factory
programming
connector (S2)
SK1
external options
connector
isolated Gate
and TX Key
option links
TX Key input
optocoupler
Gate output relay
low pass
filter
alarm beep
generator
audio
level
detector
RS-232 level
translator
technician
programming
connector (S1)
open collector
RX Gate O/P
un-isolated TX-Key I/P
GPIO lines (x5)
TX and RX data + flow control
balanced
line in
balanced
line out
un-balanced line out
line in
level
adjust
side tone
talk-through
level adjust
(optional)
un-balanced
line in
mute
line out
level adjust
I/O
matrix
26 x 9
polyswitch fuse
9-way
D-Range
socket
SPI data

Tait TM8000 Specifications

General

Brand	Tait
Model	TM8000
Category	Computer Hardware
Language	English