Cambium PTP 670 Series, User Manual

Page: 304 / 594

Chapter 5: Installation Installing the ODU and top LPU
Page 5-7
Installing the ODU and top LPU
To install the ODU and top LPU, use the following procedures:
•
Attach ground cables to the ODU on page 5-7
•
Mount the ODU on the mast on page 5-7
•
Mount the top LPU on page 5-10
•
Interconnect and ground the ODU and top LPU on page 5-10
Attach ground cables to the ODU
1 Fasten one ground cable to each ODU grounding point using the M6 (small) lugs: one is for the
top LPU (M6 lug at other end) and the other is for the tower or building (M10 lug at other end).
It does not matter which cable goes on which ODU grounding point.
2 Tighten both ODU grounding bolts to a torque of 5 Nm (3.7 lb ft).
Mount the ODU on the mast
Select the most appropriate bracket mounting arrangement from the options listed in
Mounting bracket options on page 5-6 . Refer to individual procedures below for each of the
options:
•
Tilt Bracket Assembly on page 5-7
•
Tilt Bracket Assembly with band clamps on page 5-8
•
Mounting bracket (Integrated) on page 5-9
The mounting procedures can be adapted to attach the ODU to a suitable horizontal pole, but
the adjustment of azimuth angle is necessarily limited compared with an installation on a
vertical pole.
Tilt Bracket Assembly
1 Fix the mounting plate of the Tilt Bracket to the back of the ODU using four of the short bolts,
ensuring that the arrow in the plate points towards the top of the ODU. Tighten the four bolts to
a torque setting of 5.0 Nm (3.7 lb ft) using a 13 mm spanner or socket.
2 Fit the two long bolts through the bracket body so that the bolt heads engage in the slots as
shown. Fit two of the short bolts into the side of the bracket body but do not tighten.
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