interface is to be
used concurrently with either of our ICBUW1
device in effect is a
Wiegand converter to the RS232 port. Wiegand protocol is a special security protocol
sending bit strings of specified length and specified content. When the bit string
contained in a card is read and recognized by the IW1RT
this last in turn sends back an acknowlegment
to one of our access control devices, mentioned above.