Thor Vm2Screen Blanking; Screen Blanking Box - Honeywell Thor VM2 Reference Manual

Thor VM2Screen Blanking

Prerequisite: The steps outlined in Power Cable Connection have been performed for either the
72-144 VDC Connection.
Screen blanking is accomplished by either a Screen Blanking Box or a user supplied switch.
Caution:
For installation by trained service personnel only.
Caution:
For proper and safe installation, the input power lead to the Screen Blanking Box requires a 3 Amp maximum time
delay (slow blow) high interrupting rating fuse. Note: For North America, a UL Listed fuse is to be used.
Please refer to the Thor VM2 Reference Guide for specifications on building a serial cable for the screen blanking feature and
Screen Control (in the Windows Control Panel) to configure the Thor VM2 for screen blanking.
When routing any additional cables for screen blanking:
Route the cable the shortest way possible removing any left-over cable
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Fuses and cabling are user supplied. Therefore, route these cables so they are protected from physical damage and
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from surfaces that might exceed the cable's rated temperature threshold.
Cable should be protected from physical damage from moving parts
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Do not expose the cable to chemicals or oil that may cause the wiring insulation to deteriorate
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Always route the cable so that it does not interfere with safe operation and maintenance of the vehicle.
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Provide mechanical support for the cable by securing it to the vehicle structure at approximately one foot intervals,
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taking care not to over tighten and pinch conductors or penetrate outer cable jacket.

Screen Blanking Box

Screen Blanking Box Ter-
minal
12-xxV
GND
It is assumed that the motion sensing circuitry in the illustrations below is powered by internal vehicle circuitry.
Input from vehicle motion sensing circuitry.
Please refer to label on Screen Blanking Box for allowable voltage input range.
DC -
These two terminals are for connecting a serial cable:
If using an optional Honeywell screen blanking cable, VM1080CABLE, connect the
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gray wire to the switched side of the connection and connect the black wire to the
unswitched side.
If using a user-supplied cable, the cable must be constructed so that Pin 7 (RTS)
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connects to switched side of the connection and Pin 8 (CTS) connects to the
unswitched side.
10-60 VDC Connection
Connection
or the
4-11