Bosch LTC 8600 Instruction Manual

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Contents

58 | en LTC 8600 | LTC 8800 SeriesBosch Security Systems, Inc. Instruction Manual F.01U.127.393 | 2.0 | 2009.0316 Alarm Information16.1 GeneralThe ability to automatically switch video in response to an external signal (usually acontact closure) is a necessary feature in any video switching system. The Allegiantsystem permits users with Priority Level 1 to select any 1 of 3 predefined alarmresponse modes (via keyboard User Function 19). A description of these three (3)modes appears below. Pictorial examples of the three (3) alarm responses are alsoshown on the following pages.The system can also be programmed with a wide variety of alarm response charac-teristics using the optional LTC 8059/00 MCS package or the optionalLTC 8850/00 GUI Software package.16.2 Basic Alarm Response ModeIn the Basic alarm response mode, any or all of the monitors can be selected asalarm display monitors. Each alarm can then be armed to display its camera(s) onany set of armed monitors. Multiple alarms, on the same monitor, will sequence at a1 second rate. Note that monitors and alarms can be armed and disarmed individu-ally as required. Alarmed video automatically clears when the alarm input signal isreset.16.3 Auto Build Alarm Response ModeThis mode uses a set of monitors as alarm display monitors. All system monitorsmay be armed if desired. Each triggered alarm will display its alarm video on a dif-ferent monitor, starting with the lowest numbered armed monitor. If all the armedmonitors are already displaying alarm video, subsequent alarms will build on theexisting alarmed monitors; and each monitor will sequence through its alarm videosat a 1 second rate. Note that monitors and alarms can be armed and disarmed indi-vidually as required. Alarmed video will automatically clear when the alarm inputsignal is reset.16.4 Sequence and Display Alarm Response ModeThis mode designates two monitors as alarm response monitors. Monitor #1 is theDISPLAY monitor (also called a REVIEW monitor) and monitor #2 is the SEQUENCE(or STEP) monitor. The first alarm appears on both monitors and additional alarmsbegin to sequence at a 1 second rate on the SEQUENCE monitor. The DISPLAYmonitor holds the first alarmed camera video until manually acknowledged throughthe keyboard. When the first video is cleared from the DISPLAY monitor, the nextalarmed video (“next” meaning the camera that enters an alarmed state second) isdisplayed until cleared; operation continues in this manner. Note that alarms can bearmed and disarmed individually as required. Note also that all alarms must be man-ually cleared; the presence of alarm video is not dependent upon the duration of thealarm input signal to the system.