Cabletron Systems 100BASE-FX, Cabling Manual

Page: 148 / 192

Cabling Devices
13-12 Facility Cable Management
Innerduct
Innerduct is a corrugated plastic tubing that is used to protect cabling. Most often,
innerduct is used with fiber optic cabling, due to that media’s susceptibility to
damage during or following installation. Typically bright orange in color,
innerduct may be pulled through a conduit or raceway before fiber optic cable
installation, or used in areas where the cable would otherwise be exposed.
Figure 13-11. Innerduct
Latching Duct
Firewalls, filled cinderblock walls, and packed-earth walls should not be cored
through for the installation of wallplates. By the same token, unless cable
conduits specifically for network or telephony cabling are already installed in
walls of these types, cabling should not be fished down within them. In these
situations, the use of a surface mount box takes care of the need for a wallplate.
Cabling to the surface mount box is run up from the floor or down from the
ceiling (depending upon the location of the horizontal facility cabling) along the
walls. Latching duct provides a plastic channel that can be affixed to the wall and
protect the cable. Latching duct is made of two sections, front and rear. The rear
section is backed with adhesive, allowing it to be easily affixed to walls. Once the
rear section is in place, the cable is laid in the duct and the front section is snapped
into place.
Figure 13-12. Latching Duct
Fiber Optic cable
Innerduct
1845n39
Adhesive Backing
Foward Latch Section
Back Latch Section
Cable Guideway
1845n40