Tait TM8100 mobiles Service Manual page 471

Figure 17.1 Line-interface test equipment setup
1. Note: On PCB issue 220-65202-01 and earlier, pin 5 of SK1 is ground.
17.2.3 Configuration Procedure
Table 17.2 Line-interface default test settings in the Programmable I/O form, Digital tab
Pin Direction
IOP_GPIO1 Input
IOP_GPIO2 Output
IOP_GPIO3 Output
IOP_GPIO4 Output
1.
"Line-interface input and output connections", on page 476
See
TM8100/TM8200 Service Manual
© Tait Electronics Limited November 2007
:
The line-interface board configuration must be completed before the board
is installed in the radio, as the top side of the line-interface board is not
accessible once the board is screwed to the radio lid. To configure the line-
interface board, carry out the following steps.
1.
Program the radio in which the line-interface board is being installed. The
default test settings are shown in the following tables.
Information", on page 476
.
connections
Note
A general description of IOP_GPIO lines used with the line-
interface board is given in
Label Action
PTT External PTT 1
0 No Action
BUSY Busy Status
FKEY F1 Key Status
1
explains the required input and output line-interface
Table 17.6 on page
Active Debounce Signal State
Low 60
Low None
High None
1
High None
TMAA01-01 Line-Interface Board
"Programming
476.
Mirrored
None None
None None
None None
Latching None
471