Eyemax WMPR 04 User Manual page 17

CH 2 Installation Method and Cautions
Sensor In : Connect the sensors. The sensor are composed of both signal and ground
terminals, with a voltage difference of 5V. In the case that the sensor used for input
is of the N/O (Normal Open) type, when the voltage difference between the signal
and ground falls to 0V (short), the DVR can use this as a trigger to start alarm/sensor
based recording.
Sensor Out : Connecting external electrical devices
The relay alarm terminal does not provide power, and functions only on an ON/OFF
basis via a relay. Normally, the signal and ground should be on an OPEN basis, and
the DVR will complete the relay connection.
3) Connecting with PC using LAN cable
If you want to connect DVR to PC directly, use LAN cable, and if you want to
use HUB, connect cable via hub.
*Hub : This is a device connecting one office to devices located near with using
cable when you organize LAN
*Cable : This is standard UTP cable used for communication among
devices through Hub and others when you organize LAN
PC
HUB
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