User's Manual

Appendix A
Using the Wiegand Interface
94
IDentity 4100 User Guide
Connect the Wiegand Outputs
Optically-isolated open-collector outputs are provided to meet the
requirements of the AC01 Wiegand specification. These are protected by 5V
transient voltage-suppression diodes.
To connect the Wiegand outputs, perform the following:
1 When using the single Internal antenna of the ID4100, connect CH1 (3
wires) of the WIM to the Wiegand panel.
2 If using the External antenna, connect CH2 (3 wires) of the WIM to the
Wiegand panel.
3 Refer to Figure 9 for the standard Wiegand color code as defined in the
AC-01 Wiegand specification.
Connect the 24V Power
To connect 24V power, perform the following:
1 Using the black and red power harness supplied, connect one end of
the black wire to Terminal 1 (
PGND ).
2 Connect one end of the red wire to Terminal 2 (
+24V ) of the
READER/POWER connector.
3 Connect the remaining end of the red wire to the + output terminal.
4 Connect the remaining end of the black wire to the – output terminal of
the PSU
5 Verify the connections.
Initial Testing
Initial testing is optional, but recommended. The purpose is to verify that
the 24V PSU and Wiegand module power supply are operating correctly.
Perform the following:
1 Ensure that the reader is disconnected from the umbilical cable by
unlocking and removing the connector at the reader end.
2 Apply AC power to the PSU Module.
3 Using a Digital Multimeter (DMM) confirm that the output of the PSU
lies in the range 21.6 to 26.4 VDC
4 Check that the
PWR LED on the module is illuminated.
5 Using the DMM, measure the DC voltage between
PGND and RFU on
the
READER/POWER connector. For correct operation, this should be
between 4.75 and 5.25 VDC.
6 Disconnect the PSU and reconnect the umbilical cord to the reader.