Newton Security T-DAR T1000, Installation And Operation Manual

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Tips for a Successful T-DAR Installation
Six of the most critical fundamentals are:
1. Valid access grant signals must be immediate. The valid access
signal from the access control system must by occur at the same time or
before the door is unlocked to allow an entry and must have duration of at
least 300 ms. In some instances this may require the use of a timer module to
allow for adequate lock activation time
. In all circumstances, if a person
crosses the door threshold prior to the receipt of a valid access grant signal
by the T-DAR unit, that person will cause an alarm by the T-DAR system
.
Especially in the case of installations where multiple valid entries are allowed
on a single door open cycle, it is critical to confirm that the valid entry signal is
reaching the T-DAR unit prior to a person crossing the door plane and that a
separate signal for each valid entry is received by the T-DAR unit.
2. Door contact/door position switch signals must be immediate.
These signals must be sent to the T-DAR unit at the same that the door is
opened. Unless it can be verified that the access control system can give
immediate door open signals, the T-DAR unit must have an independent
circuit for this function that allows isolation from the access control system. It
is recommended that mechanical switches of the roller and plunger types be
avoided in favor of magnetic switch door contacts.
3. Adequate and consistent downward lighting are required for
accurate operation of the T-DAR system. The T-DAR system uses stereo
video analysis to determine three-dimensional characteristics of targets and
requires sufficient lighting to perform this task. Equal and consistent lighting
from the ceiling down allows the system to identify and track targets in all
areas of the detection pattern. Lighting from the sides or the floor is not
helpful; in fact it may detract from system performance. If adequate down
lighting is not currently in place, additional lighting must be added. Invisible
(near IR) lighting is available from Newton.
4. The DC200LP Stereo Camera Head must be mounted at the
proper distance from the door and the proper camera part number must
be specified.
Use the chart found in this manual to determine the correct
distance. If the DC200LP Stereo Camera head is mounted at other distances,
the T-DAR unit will not be able to properly track persons and may have erratic
behavior.
5. Inward Swinging doors must use an I100 Door Position Indicator.
If an I100 Door Position Indicator is not used for doors that swing into the field
of view of the camera, erratic operation will result.