Tmaa01-01 Line-Interface Board; Operation; Configuring The Line-Interface Board - Tait TM8235 Service Manual

17

TMAA01-01 Line-Interface Board

D-range
hood parts
D-range plug
internal options
line-interface board
connector
external options
connector
line-interface
installation parts
internal options
external options
loom
cover seal
17.1

Operation

17.2

Configuring the Line-Interface Board

TM8100/TM8200 Service Manual
© Tait Electronics Limited June 2006
Note
These instructions refer to line-interface PCB issue 220-65202-02
or later. On earlier issue PCBs, SK1 pin 5 is ground.
The TMAA01-01 line-interface board provides both audio and
digital interfaces for a variety of systems. The interfaces available are:
an isolated 600Ω audio interface which is capable of both
simplex operation on a two-wire system, or duplex operation on
a four-wire system
a keying interface which allows for two-wire keying or single
line bi-directional keying
a variable delay timer
a logic sense control.
The line-interface board fits inside the radio in the options cavity
and is connected to the main PCB by the internal options loom.
The high-density 15-way D-range connector mounted on the line-
interface board fits through the external options connector hole
provided in the radio chassis.
Important
One of the control head function keys may be programmed to toggle the
line-interface board on and off. When the function key LED is glowing,
the line-interface board is on and when the LED is off, the line-interface
board is off.
Refer to "Programming Information" on page 458
radio programming procedure.
Important
This equipment contains devices which are susceptible to
damage from static charges. Refer to
on page 108
This kit does not meet the IP54 protec-
tion standard. Care must be taken when a
radio with a TMAA01-01 line-interface
board kit installed is being operated in an
environment where there is water, dust or
other environmental hazards.
for more information.

TMAA01-01 Line-Interface Board

for information on the
"ESD Precautions"
451