Rugged Cams Workhorse DVR 16 Channel - Manual (Page 14)

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Sensor types include Normal Close (NC) and Normal Open (NO). For more information
on sensor type setting, see {5-1-2 Recording Setup} Æ {(7) Event Setup} Æ {(B)
Sensor}.
Normal Close (NC): Opens in case of incoming signal when closed normally
Normal open (NO): Closes in case of incoming signal when opened normally
B) Relay connection
Relay output port
The user can run external devices such as a light.
Connect the external alarm device to the Rx_COM or Rx output port of the sensor/relay
extension module.
Example - Connecting four external sensors
Connect the external sensor cable to the relay output port as shown below:
External Alarm Device Output Port Ground Port
Relay 1 R1 R1_COM
Relay 2 R2 R2_COM
Relay 3 R3 R3_COM
Relay 4 R4 R4_COM
Relay types include Normal Close (NC) and Normal Open (NO). For more information
on relay setting, see {5-1-2 Recording Setup} Æ {(8) Alarm Output} Æ {(D) Relay}.
Normal Close (NC): Opens in case of incoming signal when closed normally
Normal Open (NO): Closes in case of incoming signal when opened normally
2-2-2. Adding a Hard Drive
ƒ Up to four hard drives may be installed in the system using two hard drive cables.
ƒ Each hard drive cable can connect two hard drives, which must be configured in master-slave
structure.
ƒ In the absence of CD-RW, two hard drive bays are installed: one on the right and the other on the
left. If there is a CD-RW, however, two hard drive bays are installed on the right.
The jumper setting method varies by manufacturer or model. Refer to the jumper setting
information marked on the front side of the hard drive.