Equipment without remote control features sometimes require control remotely to avoid the need for expensive trips to a remote location or help from on-site personnel. Developing a solution to this type of problem often involves an engineer who can create custom software and hardware. The use of X-10 devices for this purpose has been known to fail during electrical interference making them unusable in a business critical environment. The Sensorsoft Relay is a simple and reliable way to use your computer to restart or turn ON/OFF equipment without the need for remote operators or time consuming trips to a remote location.

The Sensorsoft Relay connects via cable to a serial port on your computer and can be located thousands of feet away without the need for a battery or *external power adapter. Our unique serial "plug and go" technology insures that you can install it quickly and start using it without a fuss. The Sensorsoft Relay can be used to control *AC or DC devices using its DPDT (Double Pole Double Throw) relay contacts.

Our software provides a convenient way to display the ON/OFF state of your remote equipment and set the desired state you want with your computer.

Applications

• Electronic door locks
  
• Re-boot or re-start locked-up equipment
  
• Remote control of experiments
  
• Computerized device control
  
• Managing power consuming devices
  
• Building management
  
• Remote sheds
  
  

Features and Benefits

• Computer connectivity - make equipment & appliances part of your network
  
• Display and control the current ON/OFF state of equipment
  
• Control *AC/DC, low or high voltage equipment with DPDT contacts
  
• Prevent repeat trips to a remote location
  
• Connects to any RS232 serial port
  
• Windows and UNIX software available
  
• Auto discovery protocol insures that no setup is required
  
• Sensorsoft Relay uses a 16 bit CRC scheme to insure reliable operation
  
• Locate the Sensorsoft Relay up to 1000 ft from the port
  
• ** No power supply required, Sensorsoft Relay is powered from the serial port
  
  

SR6171J Specifications

Control Capabilities:
Can switch ON or OFF most small AC/DC powered equipment or loads.
Internal relay type: DPDT electromagnetic relay available through terminal strip.
Relay contact resistance: 50 milliohm maximum
Relay contact load rating: 2 Amp at 30 VDC, 0.5 Amp at 125 VAC, for resistive loads (p.f.=1)
Maximum contact operating voltage: 125 VAC/125 VDC
Maximum contact operating current: 2 Amp
Maximum contact switching capacity: 60W, 62.5 VA
Operating temperature/humidity range: -25 º C to +60 º C (-13 º F to +140 º F) and < 90% RH (non-condensating)
Maximum reading or control rate: once every second
Housing dimensions: 10 cm (3.9") x 5 cm (2.0") x 2.48 cm (0.97")
Housing material: injection molded ABS thermoplastic
Housing colour: light gray
Communications connector: 8 position modular jack, (accepts 8 position plug RJ45)
Power source: Port-powered (RTS and DTR, both asserted) or via External DC power connector
External DC power connector: 2.1 mm power jack, automatic polarity correction and over-voltage protection.
External power supply voltage: 9.0 - 12.0 VDC
Power supply current drain: < 15 mA
Communications interface: RS232C using TX,RX,RTS,DTR and GND. One device per serial port.
Maximum communications cable length: 305 m (1000 ft.) using recommended cable type. Low capacitance shielded cable or UTP is recommended.
Communications Protocol: Sensorsoft Device Protocol, Version 2.0
Error control: 16 bit CRC (cyclic redundancy checking) for detection of communication errors between the Sensorsoft Relay and host computer.

Copyright © 1999-2005 Sensorsoft Corporation, All rights reserved. Contents subject to change without notice.

* Using the Sensorsoft Relay with high voltage AC or DC equipment requires a qualified electrician for safe hook up. ** AC adapter is required to hold the relay's state if the serial port is closed. Some serial ports may not be able to power the Sensorsoft Relay.
Sensorsoft, Soft Relay and Remote Watchman are trademarks and registered trademarks of Sensorsoft Corporation
Windows is a trademark of Microsoft Corporation.