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Table B-14 RS-232 DB-25 Pinouts to HP Proprietary DB-25 Pinouts (continued)
DB-25 (Card End)
Transmitted Data
Chassis Ground
Received Data
Data Terminal
Ready
Request to Send
Ring Indicator
Table B-15
shows the pin-out connection for RS-232 RJ-45 (AD280A port module) to
A6748A/A6749A RJ-45 converter. The following connection generates RJ-45 signals compatible
with A6748A/A6749A RJ-45 ports.
Table B-15 RS-232 RJ-45 to A6748A/A6749A RJ-45 Converter
RJ-45 10-Pin Plug (AD280A End)
Signal
RI
DSR
RTS
GND
TxD
RxD
SG
CTS
DTR
DCD
Table B-16
shows the pin-out connection for RS-232 DB-25 port to A6748A/A6749A RJ-45 converter.
The following connection generates signals compatible with A6748A/A6749A RJ-45 ports.
Table B-16 RS-232 DB-25 to A6748A/A6749A RJ-45 Converter
DB-25 10-Pin Plug (AD280A End)
Signal
GND
TXD
RXD
RTS
CTS
DSR
SG
40
Peripheral Connections
2
Connected to
Shell
3
Connected to
20
Connected to
4
Connected to
22
Connected to
Pin
1
Connected to
2
Connected to
3
Connected to
4
Connected (via
shield) to
5
Connected to
6
Connected to
7
Connected to
8
Connected to
9
Connected to
10
Connected to
Pin
Shell
Connected to
2
Connected to
3
Connected to
4
Connected (via
shield) to
5
Connected to
6
Connected to
7
Connected to
DB-25 (HP proprietory device end)
3
Transmitted Data
2
Received Data
6
Data Terminal Ready
8
Request to Send
9
Ring Indicator
RJ-45 10-Pin Jack
Pin
Signal
1
RI
10
DSR
2
RTS
5
GND
6
TxD
4
RxD
7
SG
9
CTS
3
DTR
8
DCD
RJ-45 10-Pin Jack
Pin
Signal
5
GND
6
TXD
4
RXD
2
RTS
9
CTS
10
DSR
7
SG
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