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Dip Switch Setting
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Alarm Output Setting
1. Disassemble the video multiplexer as described for
installing the Data Multiplex Boards on page 11.
2. Set switches (SW3/SW4/SW5) on the board to
choose the alarm control signals as either Open
Collector (O.C) or Pulse (VTR).
Open Collector (O.C): 16V DC 100 mA max.
Pulse (VTR): +5V DC approx. 500 ms
The above switch positions are the initial factory
settings.
VTR
O.C
SW5
SW3
VTR
O.C
SW4
VTR
O.C
SW3 : Alarm Output
SW4 : Alarm Reset Output
SW5 : Alarm & SW Output
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Dummy Black Burst Setting
According to the initial factory setting, the Dummy
Black Burst signal is supplied to the REC OUT con-
nector as needed to overwrite any picture dis-
played by error. If this function is not required, set
the switch SW1 to the position shown below.
1. Disassemble the video multiplexer as described for
installing the Data Multiplex Boards on page 11.
2. Set switch (SW1) on the board to the position
shown above.
SW1
OFF
SW1 : Record Output
