Eight Channel USB Relay Board

U8-RLY-EXT-L, 8 channel USB controlled relay board

Features

Low cost 8 channel USB relay board controlled through the USB port

Standard 10 Amp 250VAC/28VDC SPDT power relays
Optional SPST reed relays for fast switching and high reliability, 200VDC/200VAC resistive 0.5A "-R" option

Designed for single board operation one unit per USB port or multiple board operation on the same USB port. Up to 15 additional RS232 version boards (Example: S8-RLY-EXT-L) may be connected in a daisy chain configuration to each of these USB units, with up to a total of 128 - 10 Amp relays under PC control on one USB port. 

Our boards utilize a USB to serial chip which allows a seamless transition from RS232 boards to USB boards. The same software may be used for both board versions and are interchangeable between our USB and RS232 boards. All the same commands are utilized, including the same communication protocols and baud rates. The USB driver creates a virtual serial port, and your controlling software will not know the difference.

ASCII commands to control relays.
Easy hook up using standard USB cable (included).
Commands are sent to the virtual PC serial port created by the USB drivers.  
4800-38400 baud (default 9600 baud)
Multiple USB versions may be connected to one PC
Daisy chainable with standard RS232 models
Optional Reed relays available, see specifications below
LED Indicators for relays and Power  Note: The LED's are not visible when the cover is on the enclosure.
Also available without the enclosure "-E" suffix

Two versions available:

Model: U8-RLY-EXT-L - Relay board with 10 Amp 250VAC/28VDC SPDT power relays, mounted in a plastic enclosure, powered by an external wall transformer.
Model: U8-RLY-EXT-LR - SPST reed relays for fast switching and high reliability, 200VDC/200VAC resistive 0.5A, mounted in a plastic enclosure, powered by an external wall transformer

Applications

Industrial control applications
Automatic test equipment (ATE)
Process control systems
Power switching applications

 

Instruction Manual:

Eight USB Channel Relay Instruction Manual (372KB)

Application Note:

Application Note 156 (127K, PDF) - Board command information -- explains in detail the structure of the board commands.

 

Front View with enclosure ( U8-RLY-EXT-L)

Model U8-RLY-EXT-L Includes:
8 Channel Relay board with activation LED's
SPDT (Form C) 10 Amp power/general purpose relays
Mounted in a ABS enclosure
120VAC to 9VDC output wall transformer.


Model U8-RLY-EXT-LR Includes:
8 Channel Relay board with activation LED's
SPST (Form A) 0.5 Amp reed relays
Mounted in a ABS enclosure
120VAC to 9VDC output wall transformer.

All Versions include:
6'
USB Cable
Mini-CD driver disk with instruction manual & software

Daisy Chain Operation:
These USB versions have the capability to daisy chain the standard RS232 models to this unit. Each USB unit has a RS232 output modular jack that is connected to the input of a RS232 unit for daisy chain operation. 

The modular cable connected to the output must be the standard telephone wiring configuration which is reverse wired. Network/data/printer cables will not work correctly.

For each additional relay board connected - one additional modular cable is required.  Modular cables can be purchased here.

Software:

Relay testing software and additional software available for Windows is included on the supplied CD.

 

Software Examples:
Visual Basic
Visual Basic for Applications

Drivers:

Drivers included for, Windows, Windows CE, Linux, and Mac on CD.

 

Wiring Example for Multiple Board Applications

USB-RS232 Multiple Serial Relay board wiring example

Quantity discounts available on order page.

Click on the order button next to the price to add this item to your shopping cart.

Standard 10A SPDT relay version

Description Part Number Price  
8Ch USB Relay Board, w/enclosure, transformer, with USB cable & Drivers & LED's U8-RLY-EXT-L $135.85 Click here to purchase
8Ch USB Relay Board, transformer, with USB cable & Drivers NO/enclosure U8-RLY-EXT-EL $115.85 Click here to purchase

Note: The following boards are identical to the above units except they have the reed relays installed. The reed relays are SPST and the common and NO (normally open) contacts are used on the terminal block, the NC contact is not used when these relays are installed.  

Reed relays are typically used in low current, fast switching, low bounce, and high reliability applications (up to 10 billion operations), as in ATE equipment. No minimum current or voltage requirements. Reliability tested to 1 billion operations (from the manufacturer's specifications). Single pole single pole configuration. 200VDC/200VAC Peak Resistive, reed relays are typically not designed for controlling inductive loads.

Reed Relay Datasheet (271KB)

Optional 0.5A SPST reed relay version

Description Part Number Price  
8Ch USB Relay Board, w/enclosure, transformer, with USB cable & Drivers (reed relays) U8-RLY-EXT-LR $156.80 Click here to purchase
8Ch USB Relay Board,  with USB cable, Drivers & LED's (reed relays)  NO/enclosure U8-RLY-EXT-ELR $139.80 Click here to purchase

If you don't see what you're looking for and would like to make a suggestion, please fill out our feedback form.

[ Home ] [ Products ] [ Surplus Parts ] [ Terms & Conditions ] [ How To Order ] [ PDF Order Form ] [ HTML Order Form ]

Copyright 2000-2016 Pencom Design, Inc. All rights reserved. Made in USA