6 Installation
6.1 OSDP Reader Connections
Reader connection via OSDP V1 or V2 encrypted.
The readers should be connected to the appropriate terminal blocks (A, B, -, +) of
the READER 1 port. For the reader interface, there is an End of Line (EOL) jumper
available. This can optionally be used to terminate the reader communication
wires.
● When connecting Aperio HUBs to the ACC-AP in a daisy chain configuration,
the EOL jumper must be enabled at the ACC-AP end only.
● If using a Star Configuration for connecting the Aperio HUBs (not
recommended), the EOL jumper must again be enabled at the ACC-AP end
only.
6.2 Wiegand Reader Connections
When connecting Wiegand Readers, the “A-Line” of the ACC-AP Reader 1 and 2
ports has a fixed 560-ohm pullup resistor. Some reader types, such as the
Siemens AR6111-MX
Readers, do not have sufficient drive strength to pull the A
line low enough.
For such Readers to work correctly, an external 330 ohm pulldown resistor must
be tied from the A-Line to the negative (-ve) power on the Reader 1 & 2 ports.
This can be done easily at the time of installation by simply placing the resistor
across the connector of the ACC-AP.
The readers should be connected to the appropriate terminal blocks (A, B, -, +) of
the READER ports.
Pins A and B of READER 1 port are the data lines for Wiegand Reader 1.
Pins A and B of READER 2 port are the data lines for Wiegand Reader 2.
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