Service manual

Chapter 2 System Information
15
Serial Port Connector
5
4
3
2
1
9
8
7
6
Serial Port Connector
Serial Port Connector (male) Pinouts
Pin Number Signal Description
1 Data carrier detect
2 Receive data
3 Transmit data
4 Data term ready
5 Signal ground
6 Data set ready
7 Request to send
8 Clear to send
9 Ring indicator
USB Connector
1
1
2
2
3
3
4
4
USB Connector
Universal Serial Bus Connector Pinouts
Pin Number Signal Description
1 VBUS
2D+
3D-
4GND
NOTE Use of the USB port is supported for printers, scanners, and external modems.