Filter
Top Products
LTC 8555 Series | Instruction Manual | User Information
EN
|
22
Bosch Security Systems | 29 August 2003
To turn off an auxiliary function of a remote camera
device, press OFF, enter the number of the auxiliary to
be deactivated, then press ENTER.
With AutoDome cameras, auxiliary commands are used
to activate/deactivate certain operational features and
functions. Refer to the manual supplied with the
AutoDome camera for complete information on
supported features.
In the Allegiant Receiver/Driver series, the first 4
auxiliaries correspond to relay outputs. Option switches
in the receiver/driver can configure these to operate as
either ‘latching’ or ‘momentary’ functions. If configured
for the 'latching' type, the auxiliary will stay on once
activated, until turned off. If configured as 'momentary',
the auxiliary remains on only as long as ENTER is held
down. Auxiliary outputs 2 through 4 can also be
configured as contact closures, 24 VAC, or as line
voltage. Auxiliary number 5 controls the DITHER
function (see below). Auxiliary number 6 corresponds to
an internal receiver/driver AUTO-PANNING feature
that must have been previously enabled via an option
switch internal to the receiver/driver.
DITHER is a legacy Allegiant Receiver/Driver feature
designed to extend the life of tube-based low-light level
cameras. Its function was to prevent bright lights in the
scene from burning a spot on the camera imager. When
this feature is active and the pan/tilt is not moved for a
period of about 2 minutes, the receiver/driver
automatically pans right for approximately 0.5 seconds.
Two minutes later, a pan left occurs. This cycle continues
until disabled. The feature is enabled via an option
switch in the receiver/driver, and is activated by turning
on auxiliary 5. To deactivate the feature, turn off
auxiliary 5. When first enabled, the pan/tilt unit makes
one short Left/Right cycle to indicate that the DITHER
function has been activated. Note that a camera in the
DITHER mode accumulates a viewing error if left
unattended for a long period of time, so occasionally a
manual adjustment of the pan/tilt may be required.
7.5.8 Arm/disarm Individual Alarms
Alarm commands are used to control the system's
automatic video switching, in response to alarm signals.
To arm/disarm an individual alarm on the monitor
currently controlled by the keyboard, press ALARM.
Enter the alarm number to be armed using the numeric
keypad, and press ON to arm the alarm, or OFF to
disarm it.
Using default settings, the camera activated by an alarm
is normally the same as the alarm number, but this
relationship can be changed via the optional Allegiant
PC based Master Control Software package. In cases
where the alarm number does not match the camera
number, it is important to specify the alarm number
when using this command.
The monitor status display (if enabled) shows "'CA"
(camera/alarm armed) whenever an armed camera is
selected.
7.5.9 Arm/disarm All Alarms
To arm/disarm all alarms on the monitor currently
controlled by the keyboard, press USER, ALARM, then
ON to arm all alarms, or OFF to disarm all alarms.
7.5.10 Arm/disarm Monitor
To arm/disarm the monitor currently controlled by the
keyboard, press USER, MONITOR, then ON to arm
the monitor, or OFF to disarm the monitor.
NOTE: Alarm video will appear on a given monitor
only if the monitor is armed and the alarm is armed for
that monitor.The monitor status display (if enabled)
shows "MA" (monitor armed).
7.5.11 Acknowledgement of Alarms
ACK is provided so system operators can respond to
alarms from the keyboard. Pressing ACK while the
keyboard is beeping due to an alarm condition always
silences the beeper. Depending on alarm configuration
programming, subsequent pressing of the ACK key
either clears alarm video from the monitors, or has no
effect.