36 en | Installing
AMC2 Modular
Controller
2018-09 | AMC2-4W_UL | Bosch Access Systems GmbH
4.10 Wiegand Interface for Card Readers
The AMC2-4W provides four ports for connecting a maximum of
4 readers with Wiegand interfaces. Each interface is connected
using a 10-pin pluggable screw - refer to Connecting Diagrams,
page 63 .
Figure4.10: Location of the Wiegand interfaces for external devices
These interfaces are point-to-point connections, and each can
support only a single reader with a maximum cable length of
90m (300ft) for 24 AWG or 150m (500ft) for 22 AWG. Readers
are addressed according to their respective interface numbers.
Refer to Connecting Diagrams, page 63 for a complete wiring
diagram of the Wiegand reader interface .
Notice!
Reference UL Requirements, page 45 for readers approved for
UL installations.