Kenwood TS-890S Operation Manual - Page 20
EXT. AT Connector, MIC Connector
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1 INSTALLATION AND CONNECTION . EXT. AT Connector Pin No. 1 2 3 4 5 6 Pin Name GND TT GND NC TS 14S Function Signal ground EXT.AT connector (TTI/TTO) Signal ground No connection EXT.AT connector (TSI/TSO) DC 13.8 V power supply for EXT.AT (4 A max.) . MIC Connector Pin No. 1 2 3 4 5 6 7 8 Pin Name MIC SS MD MU 8 A NC MSG MCG Function MIC signal input MIC standby (PTT) control MIC DOWN control MIC UP control DC 8 V power supply for MIC (10 mA max.) No connection MIC ground Signal ground Input/Output - I/O - - I/O O Input/Output I I I I O - - - 1-8
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EXT. AT Connector
Pin No.
Pin Name
Function
Input/Output
1
GND
Signal ground
—
2
TT
EXT.AT connector (TTI/TTO)
I/O
3
GND
Signal ground
—
4
NC
No connection
—
5
TS
EXT.AT connector (TSI/TSO)
I/O
6
14S
DC 13.8 V power supply for EXT.AT (4 A max.)
O
.
MIC Connector
Pin No.
Pin Name
Function
Input/Output
1
MIC
MIC signal input
I
2
SS
MIC standby (PTT) control
I
3
MD
MIC DOWN control
I
4
MU
MIC UP control
I
5
8 A
DC 8 V power supply for MIC (10 mA max.)
O
6
NC
No connection
—
7
MSG
MIC ground
—
8
MCG
Signal ground
—
1 INSTALLATION AND CONNECTION
1-8