
Appendix A — Printer Specifications
PF8d and PF8t Desktop Printer User’s Guide 65
Setting: RTS/CTS
RS-232 housing: 9-pin to 9-pin
USB Interface
Use this table to understand the USB cable interface.
Connector Type: B
Serial Cable Pins and Descriptions
Pin Host - DB9 Socket Printer - DB9 Plug
1 +5V, maximum 500 mA
2RXD TXD
3TXD RXD
4DTR N/C
5GND GND
6DSR RTS
7RTS CTS
8CTS RTS
9RI N/C
Note: The total current output from the serial port cannot exceed
500 mA.
USB Cable Pins and Descriptions
Pin Function
1VBUS
2D-
3D+
4GND
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