Installation manual
RAPID CONFIGURATION 
3 
1 
25-pin Connector Pinout for DS2400N 
The table below gives the pinout of the  25-pin male D-sub connector for connection to the 
power  supply  and  input/output  signals.  Use  this  pinout  when  the  DS2400N  reader  is 
connected by means of the 25-pin connector: 
13 
25 
14 
1 
Figure 2 - 25-pin Male D-sub Connector 
25-pin D-sub male connector pinout 
Pin 
Name 
Function 
13, 9 
Vdc 
Power supply input voltage + 
25, 7 
GND 
Power supply input voltage - 
1 
CHASSIS 
Cable shield connected to chassis 
18 
I1A 
External Trigger A (polarity insensitive) 
19 
I1B 
External Trigger B (polarity insensitive) 
6 
I2A 
Input 2 A (polarity insensitive) 
10 
I2B 
Input 2 B (polarity insensitive) 
8 
O1+ 
Output 1 + 
22 
O1- 
Output 1 - 
11 
O2+ 
Output 2 + 
12 
O2- 
Output 2 - 
20 
RX 
Auxiliary RS232 RX 
21 
TX 
Auxiliary RS232 TX 
23 
ID+ 
ID-NET™ network + 
24 
ID- 
ID-NET™ network - 
14, 15, 16, 17 
NC 
Not Connected 
Pin 
Name 
RS232 
RS485 
Full-Duplex 
RS485 
Half-Duplex 
2 
MAIN INTERFACE 
(SW SELECTABLE) 
TX 
TX+ 
RTX+ 
3 
RX 
*RX+ 
4 
RTS 
TX- 
RTX- 
5 
CTS 
*RX- 
* Do not leave floating, see par. 5.2.2 for connection details. 
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