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The simplest way to connect to other hosts (not PC compatible) or
terminals is:
Printer Terminal/Host
Pin 2- RxData ……… TxData
Pin 3- TxData ……… RxData
Pin 5- Ground ……… Ground
In general, as long as the data quantity is not too large and you
use Xon/Xoff as flow control, it will be problem free.
Baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600,
115200 bauds. (Programmable by command)
Data format: 7 or 8 bits
Parity: Odd, Even, or None
Default Parameters：9600 bauds, no parity, 8 data bits, 1 stop bit
Handshaking: XON/XOFF as well as CTS/RTS (hardware
flow control).
If you run an application with the bundled printer driver under
Windows and use the serial port, you should check the above
parameters and set the flow control to "Xon/Xoff "or "hardware".
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Parallel (Centronics)
The parallel port is a standard 36-pin Centronics, which complies
with IEEE 1284 standard (compatibility mode). Pin assignments
are as follows:
Pin Direction Definition Pin Direction Definition
1 In n/STROBE 16 - Ground
2~9 In Data 1~8 17 -
Chassis
Ground
10 Out nACK 18 -
Peripheral
High
11 Out BUSY 19~30 -
Signal
Ground
12 Out PE 31 In nINIT
13 Out SELECT 32 Out nFAULT
14 In nAUTOFEED 33~35 - N.D.
15 - N.D. 36 In nSELECTIN
Auto Polling
Both the serial port and parallel port of this printer can be
activated at the same time, i.e the printer can simultaneously
communicate with two PCs via different ports. However as no port
contention is made for this printer, if both PCs transmit data at the
same time the data may become damaged in the receiving buffer.