RP-330 Technical Manual
14
2.1.6 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
1) Specifications
Data transmission: USB 2.0
Connector:
USB “B” type connector
2) USB interface connection example
Host side
Printer side
VCC ………………………………… VCC
DATA+ ……………………………… DATA+
DATA- ……………………………… DATA-
GND ………………………………… GND
2.1.7 Centronics Parallel Interface
PIN
SIGNAL
I/O
DESCRIPTION
1
STROBE-
Input
Synchronize signal Data received
2-9
DATA0-7
Input
Data bit Transmitted 0-7
10
ACK-
Output
Data receiving competed
11
BUSY
Output
Impossible to printer data receiving
12
PE
Output
Paper empty
13
SELECT
Output
Printer’s status for ON/OFF line
14
AUTO FEED-
Input
ND
15
GROUND
-
System Ground
16
GROUND
-
System Ground
17
NC
-
18
LOGIC-H
-
+5V
19-30
GROUND
-
System Ground
31
INIT-
Input
Initialize
32
ERROR-
Output
Printer Error
33
GROUND
-
System Ground
34
NC
-
35
+5V
-
+5V
36
SELECT IN-
Input
ND
1)
Specifications
Data transmission: 8-bit parallel
Synchronization: STROBE pulse supplied by host computer.
Handshaking:
ACK and BUSY
Connector:
D-SUB 36(female) or equivalent