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5820A
SERIAL 1
FROM HOST
1
Rx
2
Tx
3
DTR
4
GND
5
6
RTS
7
CTS
8
9
SERIAL 2
TO UUT
RLSD
1
Rx
2
Tx
3
4
GND
5
DSR
6
RTS
7
CTS
8
9
Figure D-4. Serial Port Connections (DB-9/DB-9)
NULL MODEM CABLE
1
2
3
4
5
6
7
8
9
MODEM CABLE
1
2
3
4
5
6
7
8
9
RS-232/IEEE-488 Cables and Connectors
PC
COM
1
DCD
1
2
2
Rx
3
3
Tx
4
4
DTR
5
5
GND
6
DSR
6
7
7
RTS
8
8
CTS
9
9
RI
UUT
RS-232
1
1
2
2
Rx
3
3
Tx
4
4
DTR
5
5
GND
6
6
DSR
7
7
RTS
8
8
CTS
9
9
D
Appendices
yh051f.eps
D-3
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