Rugged Cams H.4 - Manual (Page 16)

(1) Sensor Connection
Select a Terminal among GND and IN1 ~ IN2 in Sensor/Relay Terminal and
Connect to the input port of the terminal block.
Each input terminal may be connected regardless of the channel number.
Sensor types include Normal Close (NC) and Normal Open (NO). For more
information on setup by sensor type, refer to {Main Setup} Æ {Recording
Setup}
Æ {Event } Æ {Sensor} .
Normal Close (NC) : Normally closed; opens when a signal is received
Normal Open (NO)
: Normally open; closes when a signal is received
(2) Relay Connection
Output alarm signal to external devices such as LED and siren by relaying them to
these external devices
Connect the external alarm device to the COM or NC/NO port of the sensor/relay terminal
block.
Relay types include Normal Close (NC) and Normal Open (NO). For more
information on setup by sensor type, refer to {Main Setup} Æ {Recording
Setup}
Æ {Alarm Output} Æ {Relay} .
Normal Close (NC) : Normally closed; opens when a signal is received
Normal Open (NO) : Normally open; closes when a signal is received