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Dip Switch Setting
Alarm Output Setting
1. Disassemble the video multiplexer as described for
installing the Data Multiplex Boards on page 10.
2. Set switches (SW3/SW4/SW5) on the board to
choose the alarm control signals as either Open
Collector (O.C) or Pulse (0/5V).
Open Collector (O.C): 16V DC 100 mA max.
Pulse (0/5V): +5V DC approx. 500 ms
The above switch positions are the initial factory
settings.
Timing Chart of Alarm Output, Alarm Reset Output, Alarm and Switching Output (0/5 V Selected)
Alarm input 1
Hi-Z
Alarm input 2
5V
Alarm output
0V
(Pin #9)
5V
Alarm reset
output (Pin #27) 0V
5V
Alarm & SW
Output (Pin #25) 0V
C If another alarm is input before the existing alarm is
reset, the alarm output lasts as long as the time set
for the succeeding alarm.
• The O.C position of SW3, SW4, and SW5 corre-
sponds to their 0/5 V position as shown in the table
on the right side.
Dummy Black Picture Setting
According to the initial factory setting, the Dummy
Black Picture signal is supplied to the REC OUT
connector as needed to overwrite any picture dis-
played by error. If this function is not required, set
the switch SW 1 to the position shown below.
1. Disassemble the video multiplexer as described for
installing the Data Multiplex Boards on page 10.
2. Set switch (SW1) on the board to the position
shown above.
100 ms or more
0V
Hi-Z
Hi-Z
Alarm output time
Approx 100 ms
0/5V
O.C
SW5
SW3
0/5V
O.C
100 ms or more
0V
0V
Retrigger
Alarm output time
C
Approx.
450 ms
Terminal condition
SW
O.C position
0/5 V position
-12-
SW3 : Alarm Output
SW4 : Alarm Reset Output
SW5 : Alarm & SW Output
SW4
0/5V
O.C
Hi-Z
Hi-Z
OFF
Hi-Z
0 V
SW1
SW1 : Record Output
OFF
ON
0 V
5 V
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