J-Works is a developer and Manufacturer of PC and USB based Relay. DPDT, SPDT, DPST, SPST, Solid State, I/O, Digital, Counter, WDT, USB Switch, Analog, Opto IO, Monitor, USB IO, USB DIO,USB ADC, USB DAC, USB Measurement and Control Products. Final assembly and test of all products are done in the USA. Contact Us:
Sales: sales@j-works.com
Customer Support: support@j-works.com
Adminstration: admin@j-works.com
Home Specification Order Software Mech Pin Circuit

WDT205 Watchdog Timer Module

Features WDT205 Watchdog Timer Module
* USB controlled watchdog timer
* Plug Compatable to Motherboard USB port (5 pin 0.100 single row)
* 2 vertical mount versions
* 2 horizontal mount version
* No connector version
* See WDT310 for standard USB type B connector
* Relay output change on time out
* High-Speed USB 2.0 device, USB 1.1 compatible
* All needed power drawn from USB port, no external power required for card
* Custom 32 and 64 bit Microsoft Windows drivers provided
* Info for linux and other OS support under software tab
It is a fact of life that a computer, hardware device or program may fail. To reduce the risk and possible damage a failure can cause, there is two possible methods (1) redundancy (2) watchdog timer. Neither method offer 100% protection, but both reduce risk or consequences of failure. Redundancy, a duplication of hardware is very expensive. On the other hand the WDT205 offers excellent protection at a very low cost. The host computer or application must communicate with the WDT205 by sending a message over the USB port. If the communication does not occur within that programmed time frame, the WDT205 will trigger a relay to close for a programmable amount of time. The WDT205 is designed to plug into an internal USB port meeting the Intel Front Panel I/O Connectivity Design Guide for a USB port. This relay event can be used to trigger a warning device, turn off critical hardware or perform a system reset. Do you have a hardware or software application that is critical to keep running at all times? Our Watchdog modules offer excellent protection against malfunctions at a low cost. Our products can be used to monitor your critical hardware and software functions (Software and Hardware) and if an error occurs, the card automatically generates outputs that can be used to initiate corrective actions, generate alarms, or reboot your computer. Any programming language that supports calls to Windows DLL can also be used to control the cards. The software interface is easy to use from Visual Basic, Visual C# Visual C++ via a standard windows DLL with sample source included. Linux driver support CD available. Each module has an unique serial number string which allows multiple USB boards to be controlled by the host USB controller as individual USB devices. Click on blue tabs above to view other information about the module.
Relay ratings
* Form C (SPDT)
* 2Amp @ 30VDC 60W
* Max DC Voltage 110VDC@ .5A
* Contact Resistance: 200mOhm Max
Watchdog timer programmable from 100millisec to 60 minutes
Reset time programmable from 100millisec to 10 seconds
Self Powered from USB (high power Hub)
Operating Temperature: -20 to +70 C
Storage Temperature: -40 to +105 C
Humidity 5% to 90% RH, without condensation
The module utilizes a custom function driver optimized for a maximum device functions and data throughput. Windows driver provided supports Windows 2000/XP/Vista/Windows7/8 for both 32bit and 64bit systems. The user API interface to the driver is via standard window DLLs both as a managed class library and older standard DLL. The CD contains sample programs and source code in Visual Basic, Visual C++, Visual C# for Windows. Third party support includes a Windows standard DLL interface usable from the most popular application programs and includes LabVIEW, MS Office, and MathLab. Click on manual and software tab above to download software for review.
Prior to shipment all J-Works products are thoroughly inspected and tested to applicable specifications. For a period of 3 years after product shipment all products originally manufactured by J-Works which are found to be defective will be repaired or replaced subject to the following. If a product is suspected of failure, contact J-Works customer service (email: support@j-works.com). Please include product module number, serial number and a description of the failure. J-Works may suggest some simple tests, or have additional questions to confirm the failure. We will assign a Return Material Authorization (RMA) number which must included with return package. All products should be properly packed for handling and ESD and returned with freight prepaid to the J-Works service location with provided RMA number and will be returned to the customer's site freight prepaid (COD). Under this Warranty, liability of J-Works is limited to replacing, repairing or issuing credit (at J-Works discretion) for any products which is found to be defective during the warranty period. In no case is J-Works liable for consequential or special damage arriving from use or misuse of a J-Works' products. The customer is responsible for all repair costs caused by modifications or additions to our products not approved in writing by J-Works, or if the product has been subject to abnormal use. Abnormal use for the purposes of this warranty is defined as any use that exceeds the specification of the product. Other than the above, no other warranty, expressed or implied, shall apply to any products supplied by or sold by J-Works.
Model Number Description Lead Time Cost Each Qty 10-49 Qty 50-99 Order Qty
WDT205-01 USB Watchdog Timer Horizontal Mount 1 Stock to 3 days $33.5 $26.5 $23 Add to Cart
WDT205-02 USB Watchdog Timer Horizontal Mount 2 Stock to 3 days $33.5 $26.5 $23 Add to Cart
WDT205-03 USB Watchdog Timer Vertical Mount 1 Stock to 3 days $35.5 $29.95 $26.25 Add to Cart
WDT205-04 USB Watchdog Timer Vertical Mount 2 Stock to 3 days $35.5 $29.95 $26.25 Add to Cart
WDT205-X01 USB Watchdog Timer XP Special Horizontal 1 3 days $33.5 $26.5 $23 Add to Cart
WDT205-X02 USB Watchdog Timer XP Special Horizontal 2 3 days $33.5 $26.5 $23 Add to Cart
WDT205-X03 USB Watchdog Timer XP Special Vertical 1 3 days $35.5 $29.95 $26.25 Add to Cart
WDT205-X04 USB Watchdog Timer XP Special Vertical 2 3 days $35.5 $29.95 $26.25 Add to Cart
WDT205-Linux Linux Support Disk now included on CD Stock to 3 days $0 $0 $0 Add to Cart
Accessory Items
The following items are offered as a customer convenience, there are many sources of compatible products
WDT205-KK 3 Pin KK Housing and crimp pins Stock $3.75 $3.25 $3 Add to Cart
Fixed Serial Number SN xxxZ9999 xxx = model number, This is an additional charge over base cost 2 days $6 $2 $1 Add to Cart
AY-AB-01 USB Cable (1 foot) Stock $4.25 $4.00 $3.75 Add to Cart
AY-AB-03 USB Cable (3 foot) Stock $4.50 $4.25 $4.00 Add to Cart
AY-AB-06 USB Cable (6 foot) Stock $5.00 $4.75 $4.25 Add to Cart
AY-AB-10 USB Cable (10 foot) Stock $5.50 $5.25 $4.75 Add to Cart
AY-AB-15 USB Cable (15 foot) Stock $8.50 $8.00 $7.25 Add to Cart

Same day order cutoff time is 11am west coast time.

Payments can be made with a credit card or PayPal account.

For a safe and secure credit card transaction all cards are processed through PayPal. You are not required to create a PayPal account to pay by credit card, they are just our secure method for all credit card tranactions.

Depending on current factory backlog, products shown as "stock" will ship within 1-2 business days. Priority is given to "next day" and "2 day" shipments. Near the end of the checkout process, selection of shipping method can be made. For the US, they are Ground, 2 day and next day. Lead time shown are updated periodically and are subject to change without notice. If an order cannot be shipped within given lead time you will be notified by email. All orders are shipped from Granada Hills, CA USA.

For international orders, not all countries have shipping rates, if order is placed with $0.00 for shipping, we will contact you with actual shipping rate with a request for payment. On international order FedEx and customs require a local phone number, please provide, otherwise your order can be delayed, while we contact you for the information.

Please contact factory by email if you have any other special shiping requirements.

For order quanities of 10 or more, usb test cables and software CD's do not ship with order. CD's can be requested by email

Software Downloads
*Download Complete CD ver 2.0 (zip file)
Labview Support
*Download Using Labview (pdf file)
Non-Windows OS Support (Linux and others)
*Download Using non-windows OS (pdf file)
Important readme about using dll with versions of windows .net Readme pdf
On some installations of Windows 7 and Windows 8 that are not configured to search the CD for drivers, it may show driver
not install and you need to do a manual install. If there is not yet a custom install under software downloads
you can download the pdf and zip of the generic install and copy your existing driver files from the CD, or do a manual install from PDF
Readme pdf
Generic install zip file
*Open Mechanical pdf file (printable)
WDT205 WDT Mechanical Dwg
*Open Connector pdf file (printable)
WDT205 WDT Pinout Dwg
*Open Interface pdf file (printable)
WDT205 WDT Relay Circuit Dwg
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Email: sales@j-works.com

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Page Last Updated Mar 23, 2015