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Legrand PDU User Guide 47
For the cabling length restrictions, see
Supported Maximum DPX Sensor Distances
(on page 49).
Warning: For proper operation, wait for 15-30 seconds between each connection operation or each
disconnection operation of environmental sensor packages.
To directly connect a DPX with a factory-installed sensor cable:
An RJ-12 to RJ-45 adapter is required to connect a DPX sensor package to Legrand PDU.
a. Connect the adapter's RJ-12 connector to the DPX sensor cable.
b. Connect the adapter's RJ-45 connector to the RJ-45 SENSOR port of the Legrand PDU.
To directly connect a differential air pressure sensor:
1. Connect a Raritan-provided phone cable to the IN port of a differential air pressure sensor.
2. Get an RJ-12 to RJ-45 adapter. Connect the adapter's RJ-12 connector to the other end of the phone
cable.
3. Connect this adapter's RJ-45 connector to the RJ-45 SENSOR port on the Legrand PDU.
4. If intended, connect one DPX sensor package to the OUT port of the differential air pressure sensor. It
can be any DPX sensor package, such as a DPX-T3H1.
The Legrand PDU
Raritan differential air pressure sensors
One DPX sensor package (optional)
RJ-12 to RJ-45 adapter
Using an Optional DPX-ENVHUB4 Sensor Hub
Optionally, you can connect a Raritan
DPX-ENVHUB4
sensor hub to the Legrand PDU. This allows you to
connect up to four DPX sensor packages to the Legrand PDU via the hub.
This sensor hub supports DPX sensor packages only. Do NOT connect DPX2, DPX3, DX or DX2 sensor
packages to it.
DPX-ENVHUB4 sensor hubs CANNOT be cascaded. You can connect only one hub to each SENSOR port
on the Legrand PDU.
Tip: The Raritan sensor hub that supports ALL types of Raritan environmental sensor packages is
DPX3-ENVHUB4
. See
Using an Optional DPX3-ENVHUB4 Sensor Hub
(on page 50).
To connect DPX sensor packages via the DPX-ENVHUB4 hub:
1. Connect the DPX-ENVHUB4 sensor hub to the Legrand PDU.
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.