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INSTALLATION – DS8100 SERIAL INTERFACE
RS232 Interface
The main 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 configuring the scanner.
The following pins of the Main Interface connector (Figure A, 15) are used for RS232
interface connection:
Pin
2
3
5
7
8
It is always advisable to use shielded cables. The overall maximum cable length
must be less than 15 m (49.2 ft).
The RTS and CTS signals control data transmission and synchronize the connected
devices.
If the RTS/CTS hardware protocol is enabled, the DS8100 activates the RTS output
to indicate a message can be transmitted. The receiving unit must activate the CTS
input to enable the transmission.
Name
Function
TXD
transmitted data
RXD
received data
GND
ground
CTS
clear to send
RTS
request to send
DS8100
2
TXD
3
RXD
7
CTS
8
RTS
5
GND
Figure 14 - RS232 connections
USER INTERFACE
RXD
TXD
GND
Earth
Ground
2
17
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