Meter Engineers Handbook for Cellular Communication
22
7.3
Digi TransPort WR44
Two screws are on the bottom to mount the Digi TransPort WR44. These are the screws that hold the top of the
case to the bottom. These screws need to be removed and the holes can then be used for mounting. Digi also has
a bracket (part number 76000778) that fits over the Digi TransPort WR44 and has “ears” or tabs that make it easier
to mount. Note that to install this bracket the four rubber “feet” must be removed. They are easily pried off with
a flathead screw driver. Digi also has a SIM cover specific to the Digi TransPort WR44 (part number 76000785) that
prevents anyone from removing the SIM card.
Dimensions of the Digi TransPort WR44 are 145mm x 210mm x 40mm (LxWxH). Note that you should choose an
enclosure that allows enough room to connect the power connector, Ethernet cables (and/or the serial cable), and
the antennas (or SMA RF connector on a pigtail coax cable to a bulkhead connector if you are going to use antennas
external to the enclosure).
Power for the Digi TransPort WR44 can come from any 9-36V DC power supply capable of sourcing 1.5 amps. In
extreme high temperature environments you should choose a power supply that can source a higher current do
to the typical de-rating of most power supplies. There is only one connector type for the high temperature version
of the Digi TransPort WR44. It’s a 4-pin locking Molex connector. Digi has a DC power cord specific to the Digi
TransPort WR44 (part number 76000774) that can be connected to a power supply. A typical “good” power supply
is one similar to BEC (Bobbintron Electrical Corp.) part number AP0181-18U.
Bottom view of a Digi TransPort WR44.
