Datalogic Scanning DS1500 - Manual (Page 25)

INSTALLATION
2
RS232 Interface
The serial interface is used in this case for point-to-point connections; it handles
communication with the host computer and allows both transmission of code data
and the programming of the scanner. This is the default setting.
The following pins are used for RS232 interface connection:
Pin Name Function
2 TX232 transmit data
3 RX232 receive data
4 SGND signal ground
It is always advisable to use shielded cables. The overall maximum cable length
must be less than 15 m (49.2 ft).
DS1500
4
13
3
SGND
RX232
TX232
2
USER INTERFACE
SGND
SHIELD
TXD
RXD
Earth Ground
Figure 7 – RS232 Main Interface Connections
NOTE
The pin 13 of the SHIELD line is not internally connected to the
chassis.
13