Electrical Installation; Power Cable Routing - Intermec 6820 User Manual

SECTION 2
" NOTE:
If the battery voltage exceeds 18.0 V dc, there is a problem with the
vehicle electrical system which must be diagnosed and repaired be-
fore the printer and vehicle dock will work properly. Check your en-
gine for a bad voltage regulator or a poor ground, either of which can
cause excessive voltage.
Excess electrical noise can be severe enough to defeat the
electrical filtering that is built into NORAND
printers, and vehicle docks. Defective ignition wiring, dam-
aged insulation, or a faulty vehicle electrical component can
cause electrical noise — possibly causing computers and
printers to behave unpredictably.

Electrical Installation

Decide where to mount the 6820 Printer and vehicle dock,
then follow these instructions.

Power Cable Routing

"
"
Cable Length
A shorter printer dc power cable connects the printer
to the vehicle battery cable, extending the overall
cable length.
"Y" Power Cable
A special "Y" (power) cable and a remote data commu-
nications cable are required when using vehicle docks
with 61XX, 63XX, or 66XX Computers. The "Y" cable
limits the separation of the dock and printer to eight
feet (2.4 meters). However, using separate power
cables for the dock and printer allow you to locate the
printer and the vehicle dock up to 30 feet (9.1 meters)
apart.
Installation
R cables,
6820 Printer User's Guide 2-3