Assembling The Lightning Suppressor - Symmetricom TimeProvider 1000 User Manual

7. Using a plumb line or bubble level, ensure the antenna is within 5° of vertical
(perpendicular to the horizon), and tighten the mounting bracket bolts.
8. Bolt the lightning suppressor mounting plate to a flange that is attached to a valid
earth ground. The roof ring ground system, a Central Office grounding plate, and
building structural steel are examples of valid earth ground points. If the
mounting plate cannot be bolted to a valid earth ground, bolt the mounting plate
to a point within 15 feet (4.6 m) of the chosen valid earth ground. If the mounting
plate is to be installed in a nonmetallic junction box, perform the installation and
bolt the assembly near the chosen valid earth ground.
Note: A junction box must have inside dimensions of 7 cm by
7 cm by 4 cm to hold the mounting plate and attached
components.
9. Assemble the lightning suppressor as shown in
Figure 3-22. Assembling the Lightning Suppressor
10.Install 1.5 inch (3.8 cm) nonmetallic conduit from the antenna to the lightning
suppressor, and from the lightning suppressor to the cable entrance into the
building.
097-58001-02 Revision C – August 2005
Chapter 3 Installing the TimeProvider
Making Connections
Figure 3-22.
TimeProvider User's Guide 69