Operator`s manual

14 14
7 Interfaces
7.1 RS 232 Serial
Baud rate: 9600, 19200, 38400, 57600
(Setting by DIP switches 7 - 8)
Data format:
Always 8 data bits, 1 start bit and 1 stop bit
Parity: Always non parity
Flow control: RTS/CTS (Hardware ow control),
If you are using software or drivers under the Windows
®
environment, the ow control must be set to "hardware".
Pin assignment
Printer Host 1 Host 2
9-pin interface 2
5S 9S 25S 9S
TX 2 RX 3 RX 2 RX 3 RX 2
RX 3 TX 2 TX 3 TX 2 TX 3
CTS 4 RTS 4 RTS 7
GND 5 GND 7 GND 5 GND 7 GND 5
RTS 6 CTS 5 CTS 8
4
5
4
6
DSR 7 DTR 20 DTR 4
DTR 8 DSR 6 DSR 6
6
20
7
8
7.2 Parallel (Centronics)
The parallel port is a 36-pin Centronics interface. Its pin assignments are as follows:
Pin Direction Denition Pin Direction Denition
1 In /STROBE 13 Out SELECT
2 In Data 1 14,15 NC
3 In Data 2 16 - Ground
4 In Data 3 17 - Ground
5 In Data 4 18 NC
6 In Data 5 19~30 - Ground
7 In Data 6 31 NC
8 In Data 7 32 Out /Fault
9 In Data 8 33~36 - NC
10 Out /ACK
11 Out BUSY
12 Out PE
Any communications port can transmit data from the host (Centronics, RS 232, Ethernet, and USB).
Preliminary communications settings are not required since the printer will automatically detect which port is active.
i
Never send data from 2 ports at the same time.
Then data corruption and print errors may occur.