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Screen Blanking
Prerequisite: The steps outlined in either 12-48 VDC Vehicles (10-60 VDC Direct Connection) (page 4-34), 60-144
VDC Vehicles (50-150 VDC Power Supply, Screws on Side of Lid) (page 4-39) or 60-144 VDC Vehicles (50-150 VDC
Power Supply, Screws on Top of Lid) (page 4-43) have been completed.
Screen blanking is accomplished by either a Screen Blanking Box or a user supplied switch.
Screen Blanking Cable
Refer to 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
• Fuses and cabling are user supplied. Therefore, route these cables so they are protected from physical damage
and from surfaces that might exceed the cable's rated temperature threshold.
• Cable should be protected from physical damage from moving parts
• Do not expose the cable to chemicals or oil that may cause the wiring insulation to deteriorate
• Always route the cable so that it does not interfere with safe operation and maintenance of the vehicle.
• Provide mechanical support for the cable by securing it to the vehicle structure at approximately one foot
intervals, taking care not to over tighten and pinch conductors or penetrate outer cable jacket.
Honeywell Screen Blanking Box Cable
An optional Honeywell Screen Blanking Box Cable is available.
Note: Wire colors only apply to optional Honeywell Screen Blanking Box Cable, VM1080CABLE. Wire colors
may vary in a user-supplied cable.
The optional Honeywell Screen Blanking Box Cable, VM1080CABLE, is installed as follows:
1. Connect the gray wire of the cable to the switched side of the Screen Blanking Box.
2. Connect the black wire of the cable to the unswitched side of the Screen Blanking Box.
3. Connect the D9 serial connector to either COM1 or COM2 serial port on the Thor VM2 Quick Mount
Smart Dock.
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.
DB9 Female Function with Screen Blanking Box Wire color
1 -6, 9 Not Used
7 (RTS) Connected to Screen Blanking Box, unswitched side Black (see note)
8 (CTS) Connected to Screen Blanking Box, switched side Gray (see note)
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