W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:

SIP Ring Switch 4xOut

Call to switch ...

Use the SIP Ring Switch with Voice-over-IP telephone network and systems to call specific extensions and trigger switching actions. There are 4 separte switching channels available. This means you can select certain call numbers to operate for example door openers, barriers and lights.


Switching signals:

  • 4 switching outputs
    • 24V technology
    • Switching of 230V and other voltages possible using coupling relays
    • Switching currents up to 500mA
    • Turn on, off or toggle
    • Output switching pulses


  • Intuitive Web interface for simple setup
    • Select between German or English
    • Switching outputs also directly from the web interface
    • Adapted representation for smart phones
    • HTTP and HTTPS
  • Compatible with current Voice-over-IP solutions:
    • e.g. Asterisk
  • Help access
    • Switching via HTTP requests
    • Switching via TCP sockets
  • Alarm and reporting functions:
    • Email when dialing certain numbers
    • FTP log of owhen which output was switched
    • HTTP request for controlling third-party devices such as cameras
    • Up to 30 actions can be configured
  • Dynamic integration into other Web sites:
    • Direct access to current states via HTTP requests, AJAX and JavaScript
  • Internal clock
    • Time synchronization via time server calibration
    • Battery-backed device clock
  • Possible applications:
    • Gate, door and barrier control
    • Cross-location switching
    • House and building automation
    • Light control

Power supply:

  • External power
    • Screw terminal
    • 12 - 24V DC

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance per EN 61000-6-2
    • Low noise emission per EN 55032:2015 + A1 Cl. B, EN 61000-3-2 & EN 61000-3-3
  • 5 year guarantee

Technical data

Connections, displays and control elements:

Digital outputs:   4 switching outputs
    Output for 12-24V, max. 500mA
    max. total current 2A
    Using our coupling relays voltages of even up to
230V can be switched
    Integrated 32-bit counter for switching operations
Network:   10/100BaseT autosensing
Power supply:   12-24V DC (approx. 100mA@24V)
Galvanic isolation:   Digital in-/outputs - network: min. 1000 V
Connections:   1 x 11x screw terminal for IOs and supply - plug-in
1 x RJ45 for network
Indicators:   Status LEDs for network
  4 LEDs for digital status

Data transmission:

Protocols:   HTTP and HTTPS
  TCP sockets
SMTP e-mail sending
  Inventory keeping, group management
Response times:   Data and switching traffic: typically 12 ms

Housing and other data:

Housing:   Plastic housing for top hat rail installation
precise fit for sub-distribution systems
  90x45x56mm (lxwxh)
Enclosure rating:   IP20
Weight:   approx. 140 g
Storage temperature:   -25°C - 70°C
Operating temperature:   0°C - 60°C
Permissible relative humidity:   5..95% RH (non-condensing)
Scope of delivery:  

1 x SIP Ring Switch, 4xOut
1 x Quick Guide
Power supply and other accessories can be
ordered separately


*Net unit price for
commercial users
  • Power supplies

    • Plug-in power supply, 24V / 500mA DC with Euro plug
    • 11021
    • 21.00€
    • Plug-in Power Supply, 24V / 750mA DC with Euro, US and UK plug
    • 11026
    • 38.00€
    • Power supply for DIN rail, 24V / 630mA DC
      (merchandise, 2-year manufacturer’s guarantee)
    • 11080
    • 33.00€
  • Coupling relay for up to 230V

    • 230V coupling relay - 1 x changeover
      for DIN rail mount
    • 57015
    • 22.00€
    • 230V coupling relay - 2 x changeover
      for DIN rail mount
    • 57016
    • 22.00€
  • Mechanical Accessories

    • 19" DIN rail
    • 58813
    • 21.00€
    • Wall mount housing, enclosure rating IP66 / IP67
    • 11120
    • 54.00€
  • Supplementary network products

    • Ethernet Switch Gigabit Industry, 4 Ports
    • 55614
    • 148.00€

* Our offering is intended only for commercial users. We will be happy to refer private end customers to trading partners through whom our products can be purchased.