Tait TM8100 mobiles, Service Manual

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TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board 471
© Tait Electronics Limited November 2007
:
17.2.3 Configuration Procedure
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. “Programming
Information”, on page 476 explains the required input and output line-interface
connections
.
Note
A general description of IOP_GPIO lines used with the line-
interface board is given in
Table 17.6 on page 476 .
Figure 17.1 Line-interface test equipment setup
1
1. Note: On PCB issue 220-65202-01 and earlier, pin 5 of SK1 is ground.
Table 17.2 Line-interface default test settings in the Programmable I/O form, Digital tab
Pin Direction Label Action Active Debounce Signal State Mirrored
IOP_GPIO1 Input PTT External PTT 1 Low 60 None None
IOP_GPIO2 Output 0 No Action Low None None None
IOP_GPIO3 Output BUSY Busy Status High None None None
IOP_GPIO4 Output FKEY F1 Key Status High
1
None Latching None
1.
See “Line-interface input and output connections”, on page 476