G2000/G3000/G6000 Industrial User’s Manual Appendix A: Interface Specifications
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– Baud rate: 9600, 19200, 38400, 57600 (use the LCD menu to set Baud rate for the printer)
– Data format: always 8 data bits, 1 start bit and 1 stop bit.
– Parity: always non parity.
– Flow control: RTS/CTS (Hardware flow control).
If you are using software or drivers under the Windows environment, the flow control must be set to “hardware.”
– Any communications port can transmit data from the host (RS232, Ethernet, or USB). Preliminary communications
settings are not required since the printer will automatically detect which port is active.
Note: Never send data from 2 ports at the same time. Data cannot be sent to more than one port simultaneously or data
corruption and print errors may occur.
Parallel (Centronics)
The parallel port is a standard 36-pin Centronics interface. Its pin assignments are as follows:
Pin Direction Definition Pin Direction Definition
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
11 Out BUSY
12 Out PE
Any communications port can transmit data from the host (Centronics, RS232, Ethernet, and USB). Preliminary
communications settings are not required since the printer will automatically detect which port is active.
Note: Never send data from 2 ports at the same time. Data cannot be sent to more than one port simultaneously or data
corruption and print errors may occur.
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