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Protege DIN Rail
16 Zone Input Expander


The Protege DIN Rail 16 Input Expander provides the interface of up to 16 inputs for monitoring and automation in the Protege system. With 16 inputs that can be used for extended monitoring functionality, the Input Expander provides extensive hardware advancements that allow flexible input programming and configuration, and is designed for use with industry standard DIN Rail mounting.

  • 16 multi purpose inputs
  • 4 state input alarm using resistors to provide short, alarm, closed and tamper conditions
  • Connect any combination of normally closed or normally open inputs, configurable per input


Extending the Protege system with local inputs and outputs allows convenient, cost-effective expansion with the following additional benefits:

  • 16 inputs 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.

Device power is supplied from a 12VDC input. Ultra low current requirements ensure cost-effective power distribution.

A single RS-485 communication interface port used for all network communication functions and interconnection to other modules.

The input expander features comprehensive diagnostic indicators that can aid in diagnosing faults and conditions. LED indicators on the input expander include:

  •  Status indicator
  • Fault indicator
  • Power indicator
  • Input indicators

Utilizing the latest flash technology and high performance communication mediums, the firmware can be updated via the Protege interface.


Ordering Information
PRT-ZX16-DIN Protege DIN Rail 16 Input Expander
Power Supply
DC Input Voltage 11-14VDC
DC Output Voltage 10.83-14.0VDC 0.7A (typical) electronic shutdown at 1.1A
Operating Current 80mA (typical)
Total Combined Current* 3A (max)
Low Voltage Cutout 8.7VDC
Low Voltage Restore 10.5VDC
RS-485 Module Network
Inputs 16 high security monitored inputs (10ms to 1hr input speed programmable)
Trouble Inputs 16
Dimensions (L x W x H) 156.8 x 90 x 60mm (6.17 x 3.54 x 2.36")
Net Weight 280g (9.9oz)
Gross Weight 350g (12.3oz)
Operating Conditions
Operating Temperature UL/ULC 0° to 49°C (32° to 120°F) : EU EN -10° to 55°C (14° to 131°F)
Storage Temperature -10°- 85°C (14° - 185°F)
Humidity 0%-93% non condensing, indoor use only (relative humidity)
Mean Time Between Failures (MTBF) 784,316 hours (calculated using RFD 2000 (UTE C 80-810) Standard)

* The Total Combined Current refers to the current that will be drawn from the external power supply to supply the Input Expander and any devices connected to the Expander's outputs. The Auxiliary outputs are directly connected via electronic fuses to the N+ N- input terminals, and the maximum current is governed by the trip level of these fuses.

Regulatory Notices

This equipment carries the RCM label and complies with EMC and radio communications regulations of the Australian Communications and Media Authority (ACMA) governing the Australian and New Zealand (AS/NZS) communities.

Conforms where applicable to European Union (EU) Low Voltage Directive (LVD) 2014/35/EU, Electromagnetic Compatibility (EMC) Directive 2014/30/EU, Radio Equipment Directive (RED)2014/53/EU and RoHS Recast (RoHS2) Directive: 2011/65/EU + Amendment Directive (EU) 2015/863.

This equipment complies with the rules, of the Official Journal of the European Union, for governing the Self Declaration of the CE Marking for the European Union as specified in the above directives.

  • UL1610 for Central-Station Burglar-Alarm Units
  • UL294 for Access Control System Units
  • CAN/ULC S304 for Signal Receiving Centre and Premise Burglar Alarm Control Units
  • CAN/ULC S559 for Fire Signal Receiving Centers and Systems

This equipment carries the UKCA label and complies with all applicable standards.


his is a Class A digital device that meets all requirements of the Canadian Interference-Causing Equipment Regulations.


FCC Rules and Regulations CFR 47, Part 15, Class A.

This equipment complies with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference; (2) This device must accept any interference received, including interference that may cause undesired operation.