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TCW122B-CM Remote environmental monitoringTCW122B-WD - IP Watchdog Monitoring

TCW122B-RR - Remote Relay Control

TCW122B-RR - Remote Relay Control
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TCW122B-RR - Remote Relay Control

TCW122B-CM 900-300x214

Application examples

Short Description

TCW122B-RRis an Ethernet based remote relay control module that has two digital inputs and two relay outputs, with normally open and normally closed contacts. To arrange remote relay control two devices should work opposite one another one in client mode and other in server mode. The client sends periodically the status of its digital inputs to server. As answer the Server returns its digital inputs status.

Client-server model allows following variants:

  • both devices are connected to Internet, with public IP addresses;
  • both devices are connected to one LAN, with private IP addresses;
  • Client is connected to LAN (private IP address) and Server is connected to Internet (public IP address);
  • Client is connected to LAN (private IP address) and Server is connected to different LAN but behind router with public IP address and port forwarding.


  • Password protected web based configuration
  • 2 digital inputs with dry contact and logic level modes, hardware selected;
  • 2 relay outputs with NO and NC contacts;
  • Encrypted communication;
  • Manual or DHCP network configuration;
  • 10Mbit Ethernet connectivity;
  • Removable terminal connectors separated for inputs and outputs;
  • Device ID filtering;
  • Remote FTP firmware update.

Typical applications

The device is based on TCW122B hardware. Only digital inputs and relay outputs are used, but this is enough for solving problems in fields as:
  • Remote relay control one or two ways;
  • Industrial process automation;
  • Home and office alarm systems;
  • Remote control of electric devices.
Ethernet controller TCW122B-RR - user manual (pdf 1,36MB)

Recomandati produsul / pagina:
Sincro Systems SRL
Str. Matei Basarab, nr. 85, bl. L119bis, ap. 2, sector 3, București, România
Telefon: 021-320.66.02, 0723.369.867; Fax: 021-327.30.07