HP Rp3000 Service Reference Guide: HP rp3000 Point of Sale - Page 84
Ethernet RJ-45, RJ-11, Serial Interface, Powered and Non-Powered
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Ethernet RJ-45 Connector and Icon RJ-11 Connector and Icon Pin Signal 1 (+) Transmit Data 2 (-) Transmit Data 3 (+) Receive Data 4 Unused 5 Unused 6 (-) Receive Data 7 Unused 8 Unused Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused Serial Interface, Powered and Non-Powered Connector and Icon Pin Signal 1 Carrier Detect (5V/12V if powered) 2 Receive Data 3 Transmit Data 4 Data Terminal Ready 5 Signal Ground 6 Data Set Ready 7 Request to Send 8 Clear to Send 9 Ring Indicator (5V/12V if powered) 76 Appendix A Connector Pin Assignments
Ethernet RJ-45
Connector and Icon
Pin
Signal
1
2
3
4
(+) Transmit Data
(-) Transmit Data
(+) Receive Data
Unused
5
6
7
8
Unused
(-) Receive Data
Unused
Unused
RJ-11
Connector and Icon
Pin
Signal
1
2
3
4
5
6
Unused
Tip
Ring
Unused
Unused
Unused
Serial Interface, Powered and Non-Powered
Connector and Icon
Pin
Signal
1
2
3
Carrier Detect (5V/12V if powered)
Receive Data
Transmit Data
4
5
6
Data Terminal Ready
Signal Ground
Data Set Ready
7
8
9
Request to Send
Clear to Send
Ring Indicator (5V/12V if powered)
76
Appendix A
Connector Pin Assignments