Rs-232 interface, Protocol, Interface cable – Intermec PX4I User Manual

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EasyCoder PX4i User’s Guide (IPL version)

Appendix C — Interfaces

RS-232 Interface

Protocol

Default setup:
Baud rate:

9600

Char. length

8 bits

Parity:

None

Stop bits:

1

RTS/CTS Disabled
ENQ/ACK: Disabled
XON/XOFF:

Disabled (both ways)

New Line:

CR/LF

To change the RS-232 interface settings, see Chapter 6, “Setting Up the
Printer.”

Signals on printer’s serial port:

DB-9

Signal Meaning

1

External +5V DC*

2

TXD

Transmit data

3

RXD

Receive data

4

DSR

Data set ready

5

GND

Ground

6

DTR

Data terminal ready

7

CTS

Clear to send

8

RTS

Request to send

9

Not used

*

/. The external +5V is limited to 500 mA and is automatically switched

off at overload.

Interface Cable

Computer end: Depends on computer model
Printer end:

DB-9 plug

RS-232

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