Specifications
20 Video Multiplexer with Video Motion Detection
Audible Alarm The AUDIBLE ALARM option controls the multiplexer alarm tone.
It toggles as follows:
ON The multiplexer sounds an alarm tone when it detects
a mechanical alarm, motion alarm or video loss. Press any
button to turn the alarm tone off.
OFF The multiplexer is silent when it detects a mechanical
alarm, motion alarm or video loss.
The default AUDIBLE ALARM setting is OFF.
Alarm Input Polarity The ALARM INPUT POLARITY option allows you to set the polarity
of all multiplexer alarm inputs. It toggles as follows:
ACT LOW Active alarm inputs are low. The multiplexer
recognizes a contact closure or TTL/CMOS logic low as an
alarm event.
ACT HI Active alarm inputs are high. The multiplexer
recognizes a contact opening or TTL/CMOS logic high as an
alarm event.
The default ALARM INPUT POLARITY setting is ACT LOW.
Alarm Output Polarity The ALARM OUTPUT POLARITY option allows you to set the ac-
tive polarity of the TTL/CMOS alarm signal for pins 2035 (mo-
tion outputs 116) on the alarms connector. It toggles as follows:
ACT LOW The alarm output signal goes low when a
motion alarm occurs or for an alarm input or vidloss when
PASS-THRU EXTRNL ALRMS is set to YES.
ACT HI The alarm output signal goes high when a mo-
tion alarm occurs.
NOTE: The duration of the alarm output signal is determined
by the ALARM DURATION setting.
The default ALARM OUTPUT POLARITY setting is ACTLOW.