Installation manual
DS4800 REFERENCE MANUAL 
70 
5 
5.3.3  ID-NET™ Network Termination 
The network must be properly terminated by a 120 Ohm resistor at the first and last scanner 
of the network. 
5.4  AUXILIARY RS232 INTERFACE 
The auxiliary serial interface is used exclusively for RS232 point-to-point connections. 
The parameters relative to the aux interface (baud rate, data bits, etc.) as well as particular 
communication modes such as LOCAL ECHO can be defined using the Genius™ utility 
program or Genius™ based Host Mode Programming installed from the CD-ROM. 
The following pins of the 25-pin connector are used to connect the RS232 auxiliary interface: 
Pin Name  Function 
20 RX  Receive Data 
21 TX  Transmit Data 
7 GND  Ground 
7
GND
GND
TXD
R
X
20
RXD
T
X
21
USER INTERFACEDS4800 
1
Chassis
Figure 60 - RS232 Auxiliary Interface Connections 










