Interface Connector; Serial Interface; Usb Interface - VeriFone RP-300 User Manual

2-2-1. Interface Connector

< D -SUB 25 Female Serial Port>
< 4 P i n "B " Type USB Port>

- Serial interface

PIN SIGNAL
2
3 RxD
4, 20 DTR
6 DSR
1, 7 GND

- USB interface

PIN SIGNAL
1
2 DATA-
3 DATA+
4 GND
I/O
TxD Output
Input
Output
Input
-
I/O
+5V -
-
-
-
Page - 5-
<D -SUB Centronics Parallel Port>
DESCRIPTION
Printer transmit data line RS-232C level
Printer receive data line RS-232C level
Printer handshake to host line RS-232C level
Data Send Ready
System Ground
DESCRIPTION
+5V
Printer transmit data line
Printer transmit data line
System Ground