Screen Blanking; Serial Cable - Honeywell THOR VM1 Reference Manual

Vehicle-mounted computer
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Screen Blanking

The screen blanking signal can be provided either by a Honeywell Screen Blanking Box or a user supplied switch or relay.
A
screen blanking box
l
range specified on the screen blanking box label.
A
switch or relay
can be used when an electrical signal is not available or is outside the acceptable range of the screen
l
blanking box.
A

serial cable

must be used to connect the screen blanking device:
An optional Screen Blanking Box Cable is available from Honeywell, or
l
A user supplied serial cable can be used. The cable must provide wires from pins 7 and 8 of the connector. No other
l
wires are used.
Do not enable Screen Blanking until the cable is properly connected to the specified COM port.
Serial Cable
Optional Honeywell Screen Blanking Box Cable (part number VM1080CABLE) or customer built cable with the following
specifications.
DB9 Female
1
2
3
4
5
can be used on a vehicle that provides voltage on vehicle motion. Voltage must be within the
Function
with Screen Blanking Box
Not Used
Not Used
Not Used
Not Used
Not Used
Function
Wire color from
with Switch
Honeywell Cable
Not Used
Not Used
Not Used
Not Used
Not Used
2-11

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