2-1. interface connector, Serial interface, Usb interface – Epson WorkForce RP-310 User Manual
Page 6
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Page - 5-
2-2-1. Interface Connector
< D -SUB 25 Female Serial Port> <D -SUB Centronics Parallel Port>
< 4 P i n “B ” Type USB Port>
- Serial interface
PIN
SIGNAL
I/O
DESCRIPTION
2
TxD
Output
Printer transmit data line RS-232C level
3
RxD
Input
Printer receive data line RS-232C level
4, 20
DTR
Output
Printer handshake to host line RS-232C level
6
DSR
Input
Data Send Ready
1, 7
GND
-
System Ground
- USB interface
PIN
SIGNAL
I/O
DESCRIPTION
1
+5V
-
+5V
2
DATA-
-
Printer transmit data line
3
DATA+
-
Printer transmit data line
4
GND
-
System Ground
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