Filter
Top Products
EZ-Tear Thermal Printer
Owner’s Manual
Communication Cables Pin-Out
The tables below detail the connection pin-out for the RS-232 interface (Female
Receptacle 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 Output Input Printer Ready/
Fault
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
102136
July, 2005
12