Spectrum 3661U Product Manual

®

®

USB to 3.5mm Stereo Plug

Cable

PRODUCT MANUAL

Item # 3661U

Thank you for purchasing a 3661U USB to 3.5mm Stereo Plug
Cable. The cable is designed to connect Spectrum Technologies
WatchDog and FieldScout devices to your PC. Read this manual
thoroughly in order to get effective performance from your cable.

Before You Plug It In

If possible, ensure your PC is connected to the Internet
when plugging in the cable for the first time. If it is
connected, then plug in the cable, and the appropriate
driver will be downloaded and installed.

If your PC cannot be connected to the Internet, then you
must use an Internet-connected PC to download the
appropriate driver from
http://www.ftdichip.com/Drivers/VCP.htm
Copy the downloaded file to a flash drive, and move it to
your PC.

The link to the driver is also provided on the Software
Updates page at www.specmeters.com. From the top
banner, choose “Support”, “Software Updates” on the right,
then “USB Software and Driver Updates”. Follow the link
for the 3661U Driver near the top of the page. On the FTDI
Chip website, choose the driver from the table depending
on your operating system. Download the driver file.

Extract the zipped files and double-click to run the install.
Once installed, you can delete the installation program.

For customer support, or to place an order, call Spectrum
Technologies at [phone] or [phone] between 7:30
am and 5:30 p.m. CST, FAX at [phone],
or E-mail at [e-mail].

Spectrum Technologies, Inc

3600 Thayer Court

Aurora, IL 60504

www.specmeters.com

2

Configuring SpecWare

To use the cable with SpecWare, you must first check your
communications configuration. From the SpecWare menu,
choose “File”, then “Preferences”, and then click the
“Communication” tab. You must ensure that the
“Hardware Flow Control (RTS)” box is NOT checked.

In SpecWare 9, you must first click the “Advanced Options”
button on the lower right. The checkbox is just below
“Direct Connect Options”.

For older versions of SpecWare, the checkbox is in the top
center.

After unchecking the box, click “OK” to save the change.

3

Warr anty

This product is warranted to be free from defects in material or work­manship for one year from the date of purchase. During the warranty
period Spectrum will, at its option, either repair or replace products that
prove to be defective. This warranty does not cover damage due to
improper installation or use, lightning, negligence, accident, or unau­thorized modifications, or to incidental or consequential damages be­yond the Spectrum product. Before returning a failed unit, you must
obtain a Returned Materials Authorization (RMA) from Spec­trum. Spectrum is not responsible for any package that is returned
without a valid RMA number or for the loss of the package by any ship­ping company.

This equipment has been manufactured for

Spectrum Technologies, Inc.

3600 Thayer Court

Aurora, IL 60504 USA

The Manufacturer certifies CE and RoHS conformity.

[phone] or [phone]

E-Mail: [e-mail]

4

3600 Thayer Court

Aurora IL 60504

Fax [phone]

www.specmeters.com

Rev. 05/13