Installation
13
Connecting to Secure I/O 2
Refer to the following figure for connecting.
•
RS-485 should be AWG24, twisted pair, and maximum length is 1.2 km.
•
Connect a termination resistor (120Ω) to both ends of a RS-485 daisy chain connection. It should be installed at both ends
of the daisy chain. If it is installed in the middle of the chain, the performance in communicating will deteriorate because it
reduces the signal level.
•
Up to 32 devices can be connected via daisy chain (1 master device and 31 other devices).
Connecting as a Wiegand device
RFID reader
1 - WG GND
Black
4 - WG D0
Green
5 - WG D1
White
4
5
1
4
5
1
Controller
Xpass S2
Xpass S2
Using as a Wiegand output device
Using as a Wiegand input device
Door lock
Input 0
Door button
Door sensor
Input 1
8
9
3
3 - 485 GND
White (Black stripe)
8 - 485 TRXP
Blue (White stripe)
9 - 485 TRXN
Yellow (Black stripe)
PC
Xpass S2
Secure I/O 2
