3157 - 2-Channel Rolling Code UHF Remote Control Relay Board with Limit Switch Reset Inputs

NEW VERSION 3 - now has a limit switch reset input on each channel!

Two channel high security (rolling-code) UHF remote control relay board for use in a variety of applications. One receiver board can be used with up to 15 transmitter key fobs making it ideal for a multi-user access or control system.

Whether you want to control a garage door or gate, a car and/or home alarm, or perhaps remotely turn lights or anything else on or off, this system is just what you need.

Features

• Each independently controllable channel can be set to operate in either LATCHING or MOMENTARY mode
• NEW! Each channel has a Reset input for connection to a limit switch (not supplied). When used in Toggle mode, the relay with automatically turn off when the limit switch is closed. Ideal for garage doors and other control applications (see Reversible DC Motor Connection Diagram Help Sheet)
• Up to 15 transmitters can be uniquely coded to work with the receiver board
• Uses the latest state-of-the-art 433.9MHz rolling code technology making it close-to-impossible to electronically 'crack'
• Typical range is 40 metre plus (line of sight)
• LED relay status indicators
• The Receiver Module (30A17-Rx) is supplied pre-built. The Relay Board that it fits to can be purchased in either kit form (3157KT) or fully assembled (AS3157)
• Supplied with one pre-assembled 2-button key fob style Transmitter Unit (Tx). Extra transmitter units (up to 15 per Receiver board) can be purchased separately (Order Code 30A17-Tx)

Technical Specifications
Relay Receiver Board
Supply	Regulated 12-15Vdc (Order Code PSU446 with connector 778.106)
Current consumption	Standby <8mA. Add ~30mA for each active relay
Outputs	2 x SPDT Relays (toggle or momentary action)
Maximum Output Load (Resistive)	Up to 240Vac or 28Vdc @ 5 Amps max. per relay (Relay Datasheet)
Output Connections	NO, NC, C (Relay FAQ)
Inputs	1 reset input per channel (for limit switching)
Dimensions	~ 60 x 85 x 25 mm approx
Connections	Screw terminal blocks
Key Fob Transmitter
Supply	12Vdc battery (supplied)
Typical Range	40 metres line of sight
Dimensions	50 x 35 x 15 mm approx
Product Format	SELF-ASSEMBLY Electronic Kit (KT ) or PRE-ASSEMBLED Electronic Module (AS) more
Documentation	User Manual Reversible DC Motor Connection Diagram

• The kit version is supplied with all the components to build one 2-channel relay receiver board and includes one pre-built keyfob transmitter (as pictured)