Proxim AP-4900MR-LR Quick Install Manual page 11

Caution!.
The.sealing.nut.(A).must.not.be.tightened.until.the.sealing.cap.(C).
over the RJ45 connector has been tightened to the unit during final
installation;.otherwise,.the.Ethernet.cable.may.twist.and.become.
damaged.
Notes:.
▪ The cable must feed through all parts of the weatherproof cap before the
RJ45 is crimped on the outdoor Ethernet a cable.
▪ The cable between the power injector and the unit must be a straight-
through Ethernet cable (without crossover).
▪ Due to variance in CAT5 cable diameter, termination techniques of the
installer, and the application of proper tightness of the connectors, it
is strongly recommended that the CAT5 cable connector and the serial
connector cap are further secured by external weatherproofing (in addition
to the antenna N connector, where applicable). Butyl weatherproofing tape
is the preferred material for securing any external connector.
4. Attach the mounting plate (A) using the provided screws and washers
(Torque 9 N∙m/75 in-lbs), such that the unit's antenna will be vertically or
horizontally polarized when mounted.
5. Attach the extension arm (B) to mounting piece (A) with the screw, nut,
and washers provided, as shown below. The extension arm gives the unit
more possible tilt, letting you adjust for azimuth or elevation over a larger
angle.
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