Aperio
®
Online Mechanical Installation Guide, Document No: ST-001323-B Date: 21 februari 2014
Aperio
®
Online
32
AH20 (Wiegand)
Configuring and connecting the communication
hub to the EAC includes setting the DIP switches,
connecting it to the Wiegand interface bus and
connecting it to power supply, according to the
applicable section below.
Configuring the DIP switch
Details for the Wiegand interface signals:
K500
K501
K502
K503
A
B
D1
D0
RED
GREEN
GND
8-24V
NCL1
COM1
NOP1
NCL2
COM2
NOP2
NCL3
COM3
NOP3
NCL4
COM4
NOP4
1
2
3
4
5
6
7
8
9
10
ON
S101
J100
J103
S100
DIP Abbr.
Description
10
INT/EXT Internal/external antenna
9
Not used
8
TERM
Not applicable for Wiegand. Set to OFF.
7
UP
Not applicable for Wiegand. Set to OFF.
6
DOWN
Not applicable for Wiegand. Set to OFF.
5
A4
ON = Starts in pairing mode.
OFF = Normal use.
4
A3
Controls byte order of transmitted
credentials.
OFF => The byte order is left as is.
ON => The byte order is reversed
compared to what is received as input
to the Hub Wiegand EAC interface
component.
3
A2
Controls addition of parity bits on
transmitted credentials. One even parity
bit before and one odd parity bit after the
actual credentials.
OFF => Addition of parity is disabled.
Credentials are transmitted as received.
ON => Addition of parity bits is enabled.
2
A1
Set to OFF. Reserved for future use.
1
A0
Controls use of Red LED signal for access
decision.
ON = Red LED is used.
OFF = Red LED is ignored.
Default configuration
According to the figure, DIP switches 1-9 in
position OFF and DIP switch 10 in ON (Internal
antenna) on the communication hub will give
a default Wiegand configuration that will fit
most EAC systems. However, customizing the
configuration can result in better performance.
DIP 1 - Selecting LED input signals and access
decision
If the EAC system can send a signal that actively
asserts an access denied decision (Red LED), DIP 1
should be set to ON.
This will give:
∙
Shorter response time at a denied access.
∙
Possibility to use override credentials in the lock.
The flowcharts below explain how the LED input
signals are used to derive an access decision. The
OFF and ON variants are depicted.
