VAC
User’s
Guide
I.D. Systems, Inc. One University Plaza, Hackensack, NJ 07601
000-0144-01
Tel: 201-996-9000; Fax 201-996-9144; email:
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displayed on the screen (typed as well as default digits, EXACTLY AS THEY APPEAR
ON THE SCREEN. For example, if ‘0000’ appears on the screen, and the user presses 2
then 1, the screen will read ‘2100’. In this case, 2100 will be submitted if the ENTER key
is pressed.).
o
Therefore, to keep the default entry without making a change, simply press ENTER
without pressing any digits.
o
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LCD Display: (Backlit, 20-by-4 characters)
Screen Title:
First line indicates title or subject of current
screen
Numerical Data:
Second line contains numerical data
(Note: Password screen uses asterisks (*) to hide entered
data). Third line may contain helpful information.
Keypad: (20-Key, Rugged with Tactile Keys)
ENTER:
Press this key to confirm the current entry
Left Arrow
: Press this key to back up one space
ESC:
Press this key to return to previous screen
0-9:
Press these keys to enter a digit at the current cursor
location
Access Control (All Users): Logging on and off the Vehicle
Access Control Overview
One feature of the VAC is to prevent unauthorized access to the VAC, and, optionally, the vehicle. Each
VAC is assigned a vehicle number (often similar to the number marked on the side of the vehicle), and
that number has an associated authorization list that contains valid drivers and, for each driver, the times
of day and days of week for which they are allowed drive that particular vehicle. The VAC stores the
authorization list and is updated, if changes have been made, when in radio range of any Gateway.
In order for vehicle access control to prevent vehicle access, it is required that the vehicle comply with the
I.D. Systems Serial Data Interface protocol. For a compliant vehicle, unless the VAC is in ‘bypass mode,’
all Standard, Master User and Maintenance drivers must log into the VAC to gain access to the vehicle.
Once authorized, the driver may also be required to use a key to start or drive vehicle.
Whether or not access is controlled by the VAC, once logged onto (or ‘assigned to’) a VAC, the driver is
