TCW122B-RR is a 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 in a pair – one in “client” mode and other in “server” mode. The “Client” sends periodically the status of its digital inputs to “Server”. As an answer, the “Server” returns its digital inputs status.
The client-server model allows following variants:
• both devices are connected to the 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 the Internet (public IP address)
• “Client” is connected to LAN and “Server” is connected to different LAN, but behind a router with public IP address and port forwarding

*Caution. Teracom's Ethernet Controllers do not include power supply in their packaging and in case of purchase, you will need to order a power supply separately if you do not already have a compatible power supply.

Features:
• Password protected web-based configuration
• 2 digital inputs with “dry contact” and “logic level” mode
• 2 relay outputs with NO and NC contacts
• Removable terminal connectors – separated for inputs and outputs
• Encrypted communication
• Manual or DHCP network configuration
• Device ID filtering
• Remote firmware update

Applications:
• Remote relay control – one or two ways
• Industrial process automation
• Home and office alarm systems
• Remote control of electric devices

Warranties - Returns:
Money Return:	Repair - Replacement:
20 days	36 months

Specifications
Dimensions	109 x 82 x 32 mm
Operating temperature range	-20 to 55°C
Operating relative humidity range	5 to 85% (non-condensing)
Storage temperature range	-25 to 60°C
Storage relative humidity range	5 to 95%
Power supply	Operating voltage range (including -15/+20% according to IEC 62368-1): 10 to 14 VDC Current consumption (with both relays ON): 0.2 A @ 12 VDC
Ethernet connectivity	10 Mbit/s transfer rate Half-duplex mode only Auto-negotiation not supported
Digital inputs
Mode	Dry contact or Logic level
Maximum input voltage	+5.5VDC
Minimum input voltage for high logic level	+2.5VDC
Maximum input voltage for low logic level	+0.8VDC
Sampling rate	10ms
Digital filtering time interval	30ms
Relay outputs
Type	Form C (N.O. and N.C. contacts)
Contact current rating	3 A @ 24 VDC/30 VAC (resistive load)
Initial insulation resistance	100 mega-ohms (min.) @ 500 VDC
Mechanical endurance	10 000 000 operations
Electrical endurance	100 000 operations @ 3 A resistive load
Contact resistance	50 milli-ohm max. (initial value)
Minimum pulse output	1 Hz at rated load
Internal FLASH memory
Endurance	100 000 cycles (Every relay status and settings change is a memory cycle.)

*CAUTION: The device does not contain any internal overcurrent protection facilities on the relays’ contact lines. External fuses or short circuit current limiting circuit breakers, rated to 3 Amps, are to be used for overcurrent protection of the connecting lines.

User Manual
Firmware
TCW discoverer (WIN)
TCW discoverer (iOS)