VTAP100-PACS V3A INSTALLATION GUIDE
PAGE 6
Figure 3-4 Typical RS232 cable
A typical RS232 cable has the following D9 connector pinout:
Pin
Function
2
TXD
3
RXD
5
GND
9
+5V supply
The VTAP100 requires a 5V power supply. This can either be provided via:
l
J1 (pins 1 and 3) and the serial cable/host (not all RS232 devices have 5V on pin 9), or
l
other USB connectors on the VTAP100 PCB.
Some serial cables have a separate DC 5.5/2.1mm barrel connector to supply power. In these
cables, typically, the centre pin is +5V and the outer barrel is GND.
3.5 Wiegand wiring (for model VTAP100-PACS only)
Use the Wiegand connector supplied to connect a configured VTAP100-PACS PCB to your access
controller, like any other reader.
WARNING:
Disconnect the USB cable before making the Wiegand connection, otherwise the
device will be receiving power from two sources.
Follow this figure and table to make the right connections in your access controller:
