Equipment Issue 2
Fourth Printing, March 2016
Section LTCMPH-75-802
E
Copyright 2012
−
2016 Charles Industries, Inc. All rights reserved. Printed in the United States of America.
Charles
r
is a registered trademark of and CMPH
t
is a trademark of Charles Industries, Ltd. Availability of features and technical specifications herein subject to change without notice.
Page 1 of 5
0316P4
Charles Multi-Purpose Housing (CMPH
t
)
Enclosure
Installation Instructions
1.
GENERAL
1.1
Document Purpose
This document provides installation instructions for the Charles Multi-Pur-
pose Housing (CMPH
t
) enclosure, which provides a quick and easy way to
attach, mount, and protect various types and quantities of copper and fiber
cables, splices, cases, and equipment in a protective, outside plant (OSP),
above-ground enclosure. See Figure 1 for a typical CMPH model, Table 5
for general information on products in this series, or call Charles Indus-
tries (see Part 2) to request more information.
- NOTE -
Hereafter the Charles Multi-Purpose Housing will be commonly referred to as
the “CMPH” or “enclosure.”
1.2
Document Status
Whenever this document is updated, the reason will be stated in this para-
graph. The Fourth Printing removes “Optional Stake Mounting”. Stake
mounting is required for best performance.
1.3
Product Purpose and Description
The CMPH is a non-metallic, two-piece, rectangular, OSP enclosure that
offers easy installation, superior structural strength, 360
_
technician ac-
cess, generous internal equipment and cable storage capacity, and
protection against corrosion, floods, fire, weather, dirt, insects, intrusion,
dents and impact. The CMPH contains a base, a dome, and internal frame-
work. The base has corrugated or ribbed walls, internal, dual-purpose,
molded-in, channel grooves (which accept most metallic stakes as well as
the vertical channels of the internal framework, see Figure 2), an open top,
and an open bottom. Easy replacement installations and easy underground
cable access is provided via the open bottom. The top piece of the CMPH
is the dome, designed to overlap the base for a flood-protective bell-jar ef-
fect. Inside the CMPH, sturdy framework with splice bars and brackets
provides versatile mounting options for equipment (such as fiber optic
Figure 1. Typical CMPH Enclosure, Closed View
splice closures, terminal blocks, and cases) as well as storage, contain-
ment, and attachment options for various types, sizes, and quantities of
conduit, innerduct, and cabling.
1.4
Product Mounting Type and Location
The CMPH is an above-grade enclosure, the base of which is typically in-
stalled in a trench or hole in the ground up to the base’s ground line indicator.
The ribbed or corrugated base walls provide excellent stability in most soil
types. The dome mounts on the base and protects all equipment installed or
Figure 2. Typical CMPH Enclosures, Dome Removed Views
Dome
Base
Inside
Framework
Fiber cable
management
offset brackets
Channel
Hasp
(see Step 26)
Ground
Plate
Hasp
(optional)
Base
collar
Copper cable
management
bars
Fiber-type
Copper-type
Label or
decal
areas
Self-locking latch
(secured via cup‐washer screw)
Ground line
indicator
Base latch
(lock
catch)
