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80
Preparation for Operation
TB7100 Installation and Operation Manual
© Tait Electronics Limited
December 2005
7.3.3
Link Settings
Remove the cover as detailed in
“Removing the Base Station and Opening
the Tray” on page 54
and set the following links on the SI board.
Links of the mandatory settings must be in the position indicated. Links of
the optional settings must be in one of the positions listed. The defaults are
generally recommended.
Replace the cover as detailed in
“Final Reassembly” on page 63
.
Table 7.1
Line-controlled base—mandatory settings
LINK
Name
Pins
Position
Function
Comments
J400
Tx Key
Source
3
1-2
Line-controlled Base mode
External PTT signal to transmitter
J502
Tx Audio
Source
3
1-2
Line-controlled Base mode
Balanced and unbalanced audio
inputs to transmitter
J503
Rx Audio
Destination
3
2-3
Line-controlled Base mode
Received audio to balanced and
unbalanced audio outputs
W401
W402
TOI 9V Enable
TOI 4.5V Enable
2
2
Not
fitted
Tone on Idle disable
Refer
“Tone On Idle (TOI)” on
page 118
to enable idle tone.
Table 7.2
Line-controlled base—optional settings
LINK
Name
Pins
Position
Function
Comments
J500
Line Out
Frequency
Response
3
1-2
2-3
Flat response
De-emphasis
Default position is 2-3
J501
Line In
Frequency
Response
3
1-2
2-3
Flat response
De-emphasis
Default position is 2-3
J507
Line In
Destination
3
1-2
2-3
Tx Line In to Aux Mic
Tx Line In to Audio Tap In
Default position is 2-3.
Position 1-2 is usually used only
by trunking systems.
J206
Fan Control 1
3
1-2
2-3
Fan controlled by J207
Fan always on
Default position is 1-2
J207
Fan Control 2
3
1-2
2-3
Fan Tx key-controlled
Fan temperature-controlled
Default position is 2-3
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