When using an RS-232-equipped version of the Link 10 in an electric vehicle which has a floating motive battery negative, remember that Pin #5 of the DB-9 connector coming out of the back of the Link 10 is connected to the motive battery negative.
This normally causes no problem when used with laptop computers. However, if you plug the DB-9 RS-232 output into a computer with a metal chassis then motive battery negative will be connected to the chassis of the computer.
THIS EXPOSED BATTERY NEGATIVE MAY BEHAZARDOUS, AND POSSIBLY FATAL IF YOU HAVE AHIGH SIDE MOTIVE PACK FAULT.We strongly recommend that when using a computer to log data, you minimize the hazard by installing an RS-232 Opto-Isolation Module. One such module is available through Omega Engineering, Inc. (Model 268 costs $126). Call 1-800-872-9436 (phone), 1-800-848-4271 (fax), or visit www.omega.com
Please note you will also have to purchase DB-25 to DB-9 adapters as the Model 268 uses DB-25 connectors. Be certain you purchase straight- through adapters, not the null modem type!