8516 Hybrid NVR with RAID Installation Guide
19
Feature Overview
Alarm and Switch Terminals
There are alarm and switch terminals on the back of the unit. Alarm and switch devices can connect
to these.
Connecting an Alarm or Switch Device
Using the following procedure, you can connect alarm and switch devices to the terminals at the
back of the unit.
Note:
The 8516 NVR does not support End-of-Line (EOL) resistors. Only Open and Closed states
are monitored.
To connect an alarm or switch device
1
Ensure the unit is powered down and the LEDs at the front of the unit are off.
2
Locate the appropriate alarm or switch terminals (refer to the graphic above).
3
Attach the device to the appropriate terminals:
For alarm devices:
•
Use the G (ground) terminal closest to the alarm terminal when connecting the
common wire.
Note:
The alarm input is open/short, dry contact only.
For switch devices:
•
Connect the switch device common wire to the appropriate common (C) terminal.
Note:
The maximum voltage for a connected switch device is 60 volts DC input at 1 Amp
or 60 Watts. Anything above 60 Watts must be handled by a second-stage relay control
circuit, approved and validated by certified electrician.
•
Depending on the switch’s default state, connect the normally-open or normally-closed
wire to the corresponding normally-open (NO) or normally-closed (NC) terminal,
respectively.
4
After you connect all of the alarm and/or switch devices, you can turn on the unit.
Switch Terminals
Alarm Terminals
