Protege Single Zone Input Expander


Protege Single Zone Input Expander


The Protege DIN Rail Single Zone Input Expander adds another input to the Protege integrated access control, security and building automation system, an advanced technology security product providing seamless and powerful integration.

Key Features:

4-Wire Bus Configuration

The Single Zone Input Expander is designed to allow the simple upgrade of systems where motion detectors, smoke detectors, and any other dry contact input devices have been deployed using a four-wire bus topology. Using the RS-485 module network, the Single Input Expander is ideal for schools and larger sites where long cable runs and complex wiring routes are present.


Allows monitoring of a wide range of EOL capable or open contact sensors for security and building automation purposes.

Power Supply

The Protege Single Zone Input Expander operates from a 12VDC input. Ultra low current requirements ensuring cost effective power distribution.

Connectivity and System Expansion

Expanding the Protege System with local inputs from the Input Expander allows convenient cost effective expansion:

  • An input can be assigned to any 4 areas in the system each being processed using different options or features.
  • Address configuration is achieved using the address programming feature of the Protege System Controller.


Single RS-485 communication interface port used for all network communication functions and interconnects to other modules.

Upgradable Firmware

Utilizing the latest flash technology and high performance communication mediums the firmware can be updated using the ICT Loadit utility over the Protege system module network.

Ordering Code PRT-ZX1
Operating Voltage 11-14VDC
Operating Current 20mA (typical)
RS-485 Isolated Module Network
Inputs 1
Dimensions (L x W x H) 7 x 18 x 20mm (0.28 x 0.71 x 0.79")
Operating Temperature 0°-50°C (32° - 122°F)
Humidity 0%-93% non condensing, indoor use only (relative humidity)


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