Adjustment Points On The Line-Interface Board; Test Equipment Setup - Tait TM8000 Series Accessories Manual

2.2.1

Adjustment Points on the Line-Interface Board

Table 2.1 Line-interface board adjustment points
line-interface board
top side
2.2.2

Test Equipment Setup

Figure 2.1 Line-interface test equipment setup
18 TMAA01-01 Line-Interface Board
The following table describes the line-interface adjustment points.
Adjustments are made by setting the DIP switches on S1 to either "on" or
"off " and by three variable resistors (RV1, RV2 and RV3).
The following diagram shows the setup of the test equipment used when
adjusting RV1, RV2 and RV3.
:
Function
two-wire audio interface DIP1 on
four-wire audio interface DIP1 off
busy/gate = busy
busy/gate = rx-gate
busy/gate logic inverted
busy/gate logic normal
bi-directional keying line
two-wire keying
enable keying delay
keying delay
audio line out level
audio line in level
TM8000 Mobile Radio Accessories Manual
March 2004 © Tait Electronics Limited
Selection 1 Selection 2
DIP2 off
DIP2 on
DIP3 on DIP4 off
DIP3 off DIP4 on
DIP5 off DIP6 on
DIP5 on DIP6 off
DIP7 on
DIP 7 off
DIP8 off
adjust RV1
adjust RV2
adjust RV3