Xantrex Technology LINK 10 - Manual (Page 55)

55
RS-232 Warning
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 con-
nected 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 BE
HAZARDOUS, AND POSSIBLY FATAL IF YOU HAVE A
HIGH 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!