Bosch Appliances 8555 manual

LTC 8555 Series Instruction Manual User Information EN 22

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.

7.5.8Arm/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.

7.5.9Arm/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.

7.5.10Arm/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).

7.5.11Acknowledgement 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.

Bosch Security Systems 29 August 2003