Aperio
®
Online Mechanical Installation Guide, Document No: ST-001323-B Date: 21 februari 2014
31
Aperio
®
Online
Connecting to the Wiegand bus
The AH15 communication hub has four Wiegand
signals plus ground. Purpose and connection of
these signals are described in the table below.
8-24V
GND
GREEN
RED
DATA0
DATA1
RS485 B
RS485 A
1
2
3
4
5
6
7
8
ON
Hub connector
designation
Description
Connect to…
8-24V
Positive voltage
EAC power supply.
GND
Ground
EAC system ground.
GREEN
Wiegand Green LED signal. Input to
communication hub. Used for access decision.
Wiegand Green LED output on EAC system.
Alternatively, connect to a lock control relay output
on EAC system.
RED
Wiegand Red LED signal. Input to communication
hub. Used for access decision.
Wiegand Red LED output on EAC system.
Alternatively, leave unconnected if signal is selected
not to be used by DIP switch 1.
DATA0
Wiegand Data 0 signal. Output from
communication hub. Used to transmit credentials. Wiegand Data 0 on EAC system.
DATA1
Wiegand Data 1 signal. Output from
communication hub. Used to transmit credentials. Wiegand Data 1 on EAC system.
RS485 B
NOT APPLICABLE
-
RS485 A
NOT APPLICABLE
-
Connecting to supply voltage
Connect the wires to 8-24 VDC, 0.9 W and GND
(ground) on the communication hub.
Note! The power supply shall be a Limited Power
Source (LPS) according to EN 60950-1. The power
supply shall be 3 A over current protected. Wire
requirements 16-22 AWG.