Wireless 8-channel Isolated Digital Input and 8-channel Isolated Digital Output Module


The ZT-2055 offers 8 isolated channels for digital input and 8 isolated channels for digital output. Either sink-type or source-type digital input can be selected via wire connections. All digital input channels are also able to be used as 16-bit counters. The ZT-2055 supports source-type output with short circuit protection. There are options for configuring power-on and safe digital output values. The ZT-2055 has 16 LED indicators to display the channel status, and has 4 kV ESD protection and 2500 VDC intra-module isolation. Users can easily configure the module address, protocol, checksum, ZB-PID and ZB-channel settings using a combination of rotary and DIP switches.

Request For Quotation



    Building Automation, Factory Automation, Machine Automation, Remote Maintenance, Remote Diagnosis, Testing Equipment.



    • ISM 2.4 GHz Operating Frequency
    • Fully Compliant with 2.4G IEEE 802.15.4 / ZigBee Specifications
    • Wireless Transmission Range up to 700 m (Default)
    • Adjustable RF Transmission Output Power
    • External DIP and Rotary Switches for easy Configuration
    • GUI Configuration Software (Windows Version)
    • Supports AES-128 Encryption for the Wireless Communication (Passive)
    • Supports ZigBee Repeater Function
    • 8 Digital Input Channels and 8 Digital Output Channels
    • All Digital Input Channels can be used as 16-bit Counters
    • Sink-type Digital Output Channels with Overload Protection
    • Surge and ESD Protection
    • Configurable Power-on Value and Safe Value Settings
    • DIN-Rail Mountable

    I/O Specifications

    Digital Input/ Counter
    Input Channels 8
    Input Types Dry Contact Source
    Wet Contact Sink/Source
    Wet Contact On Voltage Level +10 VDC ~ +50 VDC
    Off Voltage Level Max. +4 VDC
    Dry Contact On Voltage Level Close to GND
    Off Voltage Level Open
    Effective Distance for Dry Contact Max. 500 meters
    Counter Max. Count 16-bit (65535)
    Max. Input Frequency 100 Hz
    Min. Pulse Width 5 ms
    Input Impedance 10 KΩ
    Overvoltage Protection ±70 VDC
    Digital Output
    Output Channels 8
    Output Types Open Collector
    Sink/Source (NPN/PNP) Sink
    Load Voltage +3.5 ~ 50 VDC
    Max. Load Current 650 mA/Channel
    Overvoltage Protection 60 VDC
    Overload Protection 1.4 A (with short-circuit protection)
    Power-on Value Yes, Programmable
    Safe Value Yes, Programmable

    System Specifications

    Communication Interface
    Wireless Standards ZigBee 2007 Pro
    Transmission Power 11 dBm (FCC Certificated) (Max. 19 dBm)
    2.4 GHz Antenna 5 dBi Omni directional
    Transmission Range (LoS) 700 m (Typical)
    Certification FCC/FCC ID, CE (RED excluded)
    Max. Slaves in a ZigBee Network 255
    Protocols Supports DCON and Modbus RTU Protocols
    Dual Watchdog Yes, Module (1.6 Seconds), Communication (Programmable)
    LED Indicators
    Power 1 LED, Red
    ZigBee Communication 1 LED, Green
    Digital Input and Output 8 Green LEDs for Digital Input
    8 Red LEDs for Digital Output
    Intra-module Isolated, Field-to-Logic 2500 VDC
    EMS Protection
    ESD (IEC 61000-4-2) 4 kV Contact for Power Line, Communication Line
    and each Channel, 8 kV Air for Random Point
    EFT (IEC 61000-4-4) 4 kV for Power Line
    Surge 3 kV for Power Line
    Input Voltage Range +10 VDC ~ +30 VDC
    Power Consumption Max. 2.5 W
    Flammability Fire Retardant Materials (UL 94V-0 Level)
    Dimensions (L x W x H) 96 mm x 33 mm x 110 mm
    Installation DIN-Rail
    Operating Temperature -25 ~ +75°C
    Storage Temperature -30 ~ +80°C
    Relative Humidity 10 ~ 90% RH, Non-condensing

    Ordering Informations

    ZT-2055 CR Wireless 8-channel Isolated Digital Input and 8-channel Isolated Digital Output Module (ZigBee Router) (RoHS)