KERI SYSTEMS 4X4 I/O - INPUT/OUTPUT MODULE
Product Info
4 X 4 I/O – OPTIONAL LOCAL DOOR CONTROL MODULE
The NXT-4X4 Input/Output Expansion Module provides functionality to any doors.NET access control system by adding auxiliary I/O that can be used for additional access control functionality, monitoring non-reader doors or other devices, and creating powerful action sequences by linking input triggers to outputs. The module can be connected anywhere along the RS-485 trunk, most commonly at the controller or near a reader. One module can be added per trunk, allowing up to an extra 8 inputs and 8 outputs on an NXT-2D Controller and an extra 16 inputs and outputs on an NXT-4D controller.
Features
4 auxiliary Inputs and 4 auxiliary Outputs per module
Up to 4 modules (16 Inputs and Outputs) can be added per NXT-4D Controller, up to 2 modules (8 Inputs and 8 Outputs per NXT-2D Controller
Re-assignable, Interchangeable with controller’s door I/O
4-State Supervision on Inputs
Can be used for Door Forced and Door Held Open Alarms as well as Auxiliary REX Inputs, Latch Integrity, Bond Sensor, or other general purpose functions
Flash Memory for easy upgrades
Powered from Controller (standard) or optional standalone power supply
Status Indicator LEDs for power, communication, and relay position
Specifications
Size (Enclosure) – 8” H x 7” W x 2.75” D (20.32 cm x 17.78 cm x 6.98 cm)
Size (PC Board) – 5.25” H x 3.10” W x 1” D (13.33 cm x 7.87 cm x 2.54 cm)
Weight (In Enclosure) – 2.5 lbs (1.14 Kgs)
Input Voltage – + 12 VDC nom. (10 – 14 VDC)
Current Draw – 250 mA typical
Inputs – 4 general purpose Inputs or configurable in software to: Door Contact Switch, Request to Exit, Bond Sensor
Outputs – 4 general purpose Outputs/Relays, 1.0 amp (24 VDC max.) dry circuit
Temperature / Humidity: – -40° F to 140° F (-40° C to 60° C) 0-90% Non Condensing
Communication – To Controller: RS-485
Lithium Battery – 5 years Memory Retention
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