RS232 Interface
The RS232 interface is generally used for Point-to-Point connections. When it is connected to the host computer it allows
transmission of code data.
The following pins are used for RS232 interface connection:
TCNM-ACBB1
Function
TX
RX
SGND
Transmit Data
Receive Data
Signal Ground
Shielded cables are recommended. The overall maximum cable length must be less than 15 m (49.2 ft).
RS422 Full-Duplex Interface
The RS422 full-duplex (5 wires + shield) interface is used for non-polled communication protocols in point-to-point
connections over longer distances (maximum 1200 m / 3940 ft) than those acceptable for RS232 communications or in
electrically noisy environments.
The TCNM-ACBB1 pinout follows:
TCNM-ACBB1
Function
TX+
RX+
TX-
RX-
SGND
RS422 Transmit Data +
RS422 Receive Data +
RS422 Transmit Data -
RS422 Receive Data -
Signal Ground
Note: For applications that do not use RS422 transmission to the reader (terminal block RX+ and RX-
signals), do not leave these lines floating but connect them to SGND.
3.7.3 User Interface—Serial Host
The following table contains the pinout for standard RS232 PC Host interface. For other user interface types please refer to
their own manual.
RS232 PC-Side Connections
1
5
9
6
9-pin male connector
13
25
14
1
25-pin male connector
Pin
Name
Pin
Name
2
RX
3
RX
3
TX
2
TX
5
GND
7
GND
ABR 7000 Series Barcode Reader
www.bannerengineering.com - Tel: + 1 888 373 6767
23