Communications Interfaces; Serial Interface Specifications; Rj12 Connector Pin Assignment; Infrared (Ir) Transmission - Intelligent Weighing Technology Intell-Print OM7212 User's Operation Manual

8 Communications Interfaces

The standard communications interface for the OM7212 printer is RS-232. The printer uses an RJ12 connector for this serial
interface.
8.1 RS232
8.1.1

Serial Interface Specifications

Data Transmission Method:
Baud Rate:
Word Format:
Hardware Handshaking:
8.1.2

RJ12 Connector Pin Assignment:

FUNCTION
F-GND
TXD
RXD
RTS
DSR
DTR
8.2

Infrared (IR) Transmission

If your OM7212 is configured with the optional IR transceiver, it is capable of communicating via an IrDA 1.1 connection. To
determine if your printer is configured with an IR transceiver, print a test label as outlined in section 6 and look for the section
labeled "IR Port".
8.2.1

Guidelines for IR Communication

Turn the printer on.
Place the host within 1 m (39 inches) of the printer's IR port.
Make sure the host's transmitter/receiver is within a 15 degree angle from the center axis of the printer lens. Please
refer to the drawing below:
Asynchronous serial interface
User selectable 2400 to 115200
Start bit 1 bit
Data Length 7 or 8 bits
Parity Odd, Even, None
Stop bit 1 bit
Signal Polarity:
Mark: Data transmission not possible Space: Data transmission possible
PIN No. INPUT-OUTPUT
1
2
3
4
5
6
MARK: Logic "1" (-10V) SPACE: Logic "0" (+10V)
GND
OUT
IN
OUT
IN
OUT