103701-0000R00
November 2020
14
Heavy Duty Kiosk Thermal Printer
Owner’s Manual
Communication Cables Pin-Out
The tables below detail the connection pin-out for the RS-232 interface (Female DB-9).
Pin
Signal Name
Printer I/O
Host I/O
Printer
Function
1
n/a
51R pull up to 5V
Input
Aux Power
(low current)
2
PRT_RS232_TXD
Output
Input
Data transmit
3
PRT_RS232_RXD
Input
Output
Data receive
4
n/a
No connect
Output
None
5
Signal Ground
Signal Ground
Signal Ground
Signal
Ground
6
RS232_DSR
4K7 pull up to 5V
Input
Printer Ready
7
PRT_RS232_CTS
(host RTS)
Input
Output
Handshake
8
PRT_RS232_RTS
(host CTS)
Output
Input
Handshake
9
n/a
100k pull up to 5V
Input
None
Shell
Frame Ground
Frame Ground
Frame Ground
Shield
Table 9: RS-232 Interface Pin-Out
