Operating instructions

2-4 Overview
Coaxial cable connections to the housing are made using conventional 5/8 × 24 threads per-inch
stinger-type connectors. Five port plugs in the cover enable access to internal test points
without opening the housing.
The interior platform assembly of the 15A MB-HSG differs from the platform assembly of the
10A MB-HSG (earlier models MB-550D-H, MB-750D-H, and MB-75SH, AH, and JH). However,
you can upgrade the 10A MB to a 15A MB using existing housings. To upgrade the MB-550D-H
or MB-750D-H, use the MB-15A kit P/N 951941-005-00. To upgrade the MB-75SH, AH, or JH,
use the MB-15AII platform assembly kit P/N 951941-007-00.
Two messenger clamps are located on the side of the housing (Figures 2-4 and 2-6) and are
secured with 5/16 inch × 24 threads-per-inch stainless steel bolts. The bottom of the housing
also contains two 5/16 × 24 threaded holes located on the horizontal center-line separated by
7.7 inches center-to-center. Use these holes and the bolts from the messenger clamps for
pedestal and surface-mounting installations.
MBV3-100* Installation and Operation Manual