Multiplex / Multidrop

Installing entry and exit readers on a door not only improves security, but it is often required to make certain features function properly.  On some systems, this can lead to considerably higher installation costs as multiple reader ports are required.

When you invest in an ICT Protege system, you can rest assured that when we say our hardware supports two doors, it supports two doors... Regardless of whether you use our readers or any other compatible Wiegand readers.

How it works

Using ICT's RS-485 interface on our tSec range of readers, not only do we support entry and exit readers on a single reader port, but we support multiple wiring configurations.

ICT's RS-485 interface allows both home run and multidrop wiring configurations, giving you the flexibility to use existing cabling on system upgrades and keep cabling costs to a minimum on new systems.

ICT tSec RS-485 Interface

The RS-485 interface is not only simple, flexible and more cost effective, it also increases security, allows longer cable runs and provides more cable noise immunity.

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ICT's Protege hardware also supports Wiegand readers on all two door modules.  A Wiegand reader interface means not only are ICT's readers compatible, but many 3rd party readers including a number of biometric devices are also supported.

Connecting your readers via a Wiegand interface shouldn't mean additional hardware is required.  In fact ICT's Wiegand interface also supports entry and exit readers using a method we call Reader Multiplexing.

Support for Wiegand interface readers provides maximum compatibility and the flexibility to add exit readers where required with no additional hardware.  If you are planning to upgrade your existing access control system, there is a good chance you may be able to use your existing readers.

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