User's Manual

Setting Up the Reader/PC Connection
5-2 Configuration and Operation
Setting Up the Reader/PC Connection
To connect the Reader to a PC, do the following:
1. Use the RS232 or RS485 communication line to connect the Reader to the PC. For more
information on these communication lines, see Connecting the RS232 Communication Line,
and Connecting the RS485 Four-Wire Communication Line in Chapter 2.
For the initial set-up, the connection with a local, mobile PC (Laptop) can be realized using an
RS232 interface as shown in Figure 5-1 below.
Figure 5-1: Connecting the Reader to a PC/Laptop using RS232 interface.
Alternatively, the PC/Laptop can be connected to Reader’s RS485 interface.In this case, the
specially designed RS485 Tester and Connecting Board CBD16 (both products of Lyngsoe
Systems) can be used. The usage of a third party RS485 converter is not recommended due to
different technical standards used by different manufacturers. The set-up is shown in Figure 5-2
RESET
CNO COM CNC
A B Z Y
A B Z Y
+ - OS I /0
+ 8V DTA PWR
J1
Load
Open
J2
Load
Open
DATA
POWER
Controller CTL21
J2
S95
S21
J3
J1
Load
Open
Load
Open
TX GND RX
TX GND RX
Laptop
RS232 Cable
Interface
Selection
J3
RS485
RS232
P3
RESET Button
Power LED (optional)
DATA LED