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Chapter 2: Installing and Configuring the EMX Device
33
Connecting Environmental Sensors (Optional)
To enable the detection of environmental factors around the EMX,
connect one or more Raritan environmental sensors to the EMX device.
The maximum distance for all sensor cabling plugged into the product's
sensor port should not exceed 30 meters/100 feet. Contact Raritan
Technical Support if you have questions.
If a Raritan sensor hub is used, you can connect up to 16 environmental
sensors per SENSOR port. That is,
For EMX2-111, which has only 1 SENSOR port, a maximum of 16
environmental sensors can be connected.
For EMX2-888, which has 8 SENSOR ports, a maximum of 128
environmental sensors can be connected. Since the EMX2-888
device is implemented with two channels of onboard contact closure
termination, it supports a maximum of 130 environmental sensors.
Each SENSOR port can only support a maximum of two Raritan contact
closure sensors, which has the shortest update interval among all
Raritan sensors. See Information about Update Interval (on page
177).
Note that a Raritan environmental sensor usually contains more than one
sensor. For example, a DPX-T2H2 counts as 4 sensors, and a DPX-
T3H1 counts as 4 sensors.
Warning: For proper operation, wait for 15~30 seconds between each
connection operation or each disconnection operation of
environmental sensors.
To directly connect one or multiple environmental sensors:
Plug the connector of the environmental sensor into the SENSOR
port on your EMX device.
Note: Depending on the model you purchased, the total number of
SENSOR ports varies.
To connect environmental sensors via an optional PX sensor
hub:
1. Connect a Raritan sensor hub to the EMX device.
a. Plug one end of the Raritan-provided phone cable (4-wire, 6-pin,
RJ-12) into the IN port (Port 1) of the hub.
b. Plug the other end into one of the SENSOR ports on the EMX
device.