Ctek SkyRouter - Series Z4550 Controller

Series 4550 Skyrouter - A new Gateway Platform

With its large memory footprint, variety of LAN connections, selection of development tools, and an externally accessible micro SD socket, the Z4550 is ready to meet your application requirements on three distinct levels.

Out of the box, the Z4550 is a complete cellular router, a single SKU providing communications, security, location, and protocol support. With an advanced serial PAD feature and Ctek's unique suite of SMS maintenance commands, it is in a class by itself. Carrier Switching provides on-board support for all North American LTE networks and is accomplished through a simple administrative web screen.

Monitoring and control applications are quickly deployed with Ctek's Automation Control, a no-coding, rapid development toolset that gets maintainable solutions to market faster and at a lower cost than legacy PLC approaches. Automation Control is a software PLC type application based on an intuitive, menu based rapid development environment.

For specialized applications requiring custom coding Ctek supports a downloadable crosscompile development environment, a tested source distribution, and a fully documented tool chain.

The Z4550 is code and application compatible with Ctek's Z4500 Ethernet Server. This means that both Automation Control and coded applications developed for wireless networks are easily transferred to wired or hybrid networks. In addition, whether it is operating as a communications device or as an application controller, Ctek's SkyCloud system is available to provide a detailed visualization of network, platform, and application operations



4G/LTE Category 6

B1, B2, B3, B4, B5, B7, B8, B12, B13, B20, B25, B26, B29, B30, B41


B1, B2, B3, B4, B5, B8


  • Multi-Carrier, Auto-Configured
  • Dual-SIM 2FF
  • DL MIMO/Rx Diversity Support


  • AT&T, Sprint, T-Mobile, US Cellular, Verizon, Bell, Rogers, Telus

Host Interfaces

  • 10/100 Ethernet
  • 1 RS-232
  • 1 RS-485
  • 1 Full-Speed USB
  • 1 High-Speed Micro-USB OTG; supports RNDIS/EEM/ECM
  • 4 User Configurable Inputs - Digital/Analog (0-5 VDC or 4-20mA)
  • 2 Digital Output
  • Expandable with Z1201S I/O Module

Platform Architecture

Operating System

  • Atmel ARM9 Processor
  • Linux 4.14 Operating System


  • 128MB DDR2 RAM
  • 256MB SLC NAND Flash
  • 1 microSD Slot


  • Input: 9 - 24 VDC
  • Consumption: 190 mA*

*Ethernet not connected, varies with signal level


  • Operating Temperature: -30 to +70°C
  • Humidity: 90% Non-condensing

Dimensions & Weight

5.45"L x 4.72"W x 1.45"H

10 oz without power adapter


Data Interface Support

  • Digital
  • Analog
  • Pulse
  • USB
  • Ethernet
  • RS485/232
    • TCP/UDP PAD Support
    • RS485/TCP Support
    • Master/Slave Configurations
  • Virtual Data Space

Advanced Configuration

  • Pin assigned data for quick referencing within the application
  • Built-in Calculator to build formulas and transform raw data for further processing
  • Built-in sensor calibration tool
  • Support for read/write of all MODBUS register types
  • Configurable decimal precision

Data Specific Communications

  • Customizable data names
  • Define custom on/off labels for binary data
  • Specify a unit of measure
  • Enable logging and log time intervals
  • Apply visual gauge and indicator features
  • Enable data graphing and charts
  • Define alarm communications method
  • Allow data to be viewed on Ctek's SkyCloud Portal

Build Programs

  • Use "Virtual" pins to store values and perform numeric arithmetic
  • Set hex values or set/clear bits
  • Execute local and remote control
  • Initiate time functions such as couter, watchdog, and clock timers
  • Perform wear-leveling and control on motor groups
  • Set and monitor Geo-Fences

Build Logic

  • Define level and edge sensitive thresholds
  • Definable hysteresis offsets on thresholds
  • Custom messages for any threshold
  • Trigger SMS/E-mail alarms at thesholds
  • Define thresholds to execute programs that can perform control and monitoring


Ctek Z4550 Feature Summary

  • LTE Bands 2,4,5,13,17,25
  • HSPA Bands 1,2,4,5,8
  • CDMA Bands 0,1,10
  • GPRS - Quad Band
  • GPS -Active or Passive Antenna
  • Built-in Geo-fence application
  • SMS - MO/MT
  • Ethernet, USB (host), USB (client), RS232, RS485
  • Micro-SD card slot
  • Firewall with TCP/UDP port forwarding
  • LAN Addressing - Class C address range
  • DIN rail mountable
  • Web Based Administration
  • Built-in serial PAD - TCP/UDP
  • Over-The-Air Updates
  • Linux 3.16.X OS
  • Multiple time source selections
  • DC Power - 9 - 24VDC
  • No Charge development kit
  • Private Labeling Available