ALARM CONTROL FUNCTION
The alarm function activates the warning alarm status, when an externally connected alarm sensor is turned on. Described below is an example of an alarm status activa- tion.
■Alarm Input
The video multiplexer can handle the following alarms:
•Interface Alarm
Alarm received from the ALARM/REMORTE port on the rear of the multiplexer.
“ALARM” is displayed on the monitor screen.
•Video Input Signal Loss Alarm
Alarm indicating that a camera video signal loss has occurred.
“CH✽✽LOSS” is displayed on the monitor screen.
•Camera Site Alarm
Alarm received from the associated camera site receiv- er or camera.
“ALARM” is displayed on the monitor screen.
•PC Command Alarm
OAI command received from the Personal Computer. “ALARM” is displayed on the monitor screen.
■Alarm Operation
When an alarm signal is received, the multiplexer, the Record Output, Spot Output and Multiscreen Output of the multiplexer are activated as shown below.
Refer to the ALARM SETUP menu of the
●Front Panel Display
When an alarm function is activated, the ALARM Indicator (Red) and the corresponding CAMERA (1 – 16) button (Green) blink.
The Alarm Output signal is supplied to pin 9 of the ALARM/ REMOTE port for the programmed duration.
After the programmed time has elapsed, the indicator changes to a steady light.
If another alarm is activated during output of the previous alarm, the alarm signal is output for the programmed dura- tion.
●Alarm Buzzer
The buzzer beeps for the programmed duration.
The buzzer stops beeping before that duration when the alarm is reset.
●Alarm Log
There are 100 alarm records stored in chronological order in 10 pages of table.
If more than 100 alarms are received, the oldest record is overwritten.
The tables also indicate the alarm mode.
●Camera Preset Movement
Enables movement of the camera to the preset position that was specified in the ALARM TERMINAL SETUP table of the SYSTEM SETUP menu.
●Record Output
•Alarms are recorded in the mode specified for the ALM REC MODE parameter in the ALARM SETUP menu.
•Alarmed channels are recorded preferentially over other video input if ON is specified for the DYNAMIC REC parameter in the ALARM SETUP menu.
59
