Eircom Advantage - Page 4

eircom advantage Appendices
Wiring the RS232 Serial Port
Use a standard serial cable to connect the system to a PC or a printer. In case of a non-standard interface,
following is the pin-out.
Serial Pin outs
Signal Name System port (9pin D) Printer Port (25pin D) Function
RS-TXD 2 3 Received Data
RS-RXD 3 2 Transmitted Data
RS-DTR 4 20 Data Terminal Ready
RS-0V 5 7 Signal Ground
Signal Name
System port
(9pin D)
PC Prot (9pin
D)
Function
RS-TXD 2 2 Transmitted Data
RS-RXD 3 3 Received Data
RS-DTR 4 4 Data Terminal Ready
RS-0V 5 5 Signal Ground
Baud Rate 9600
Data Bits 8
Parity None
Stop Bits 1