HP Rp5700 - Point of Sale System - Appendix C POST Error Messages; Power-On Self-Test (POST)

Serial Interface, Powered and Non-Powered
Connector and Icon Pin Signal
1
2
3
Carrier Detect (5V/9V/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/9V/12V if
powered)
USB
Connector and Icon Pin Signal
1
2
3
4
+5 VDC
- Data
+ Data
Ground
Microphone
Connector and Icon (1/8” miniphone) Pin Signal
1
2
3
1 (Tip)
2 (Ring)
3 (Shield)
Audio_left
Power_Right
Ground
Headphone
Connector and Icon (1/8” miniphone) Pin Signal
1
2
3
1 (Tip)
2 (Ring)
3 (Shield)
Audio_left
Power_Right
Ground
ENWW Serial Interface, Powered and Non-Powered 119