There are four communication hub types according to the table below:
Version |
Interface |
Maximum number of locks/sensors |
AH15 |
Wiegand/RS 485* |
1 |
AH20 |
Wiegand |
1 |
AH30 |
RS-485 |
8 |
AH40 |
IP (Ethernet) |
8 |
*) The firmware type loaded into the communication hub controls what interface is enabled.