Cisco XR 12406 User Manual
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Cisco XR 12406 Router Installation Guide
OL-13831-01
Chapter 2 Preparing for Installation
Installation Site Requirements
To help maintain trouble-free operation, consider the following precautions when
planning your rack installation:
•
The site of the rack must include provisions for source AC or DC power,
grounding, and network interface cables.
•
For the actual installation, allow sufficient space to work around the rack. You
will need at least 3 feet adjacent to the rack to move, align, and insert the
chassis. You need at least 2 feet in front of the chassis to insert power
modules.
•
Maintain at least 24 inches (61 cm) of clearance in front of and behind the
chassis for maintenance after installation.
•
To mount the router between two posts or rails, the usable aperture (the width
between the inner edges of the two mounting flanges) must be at least 17.5
inches (44.5 cm).
•
For the enhanced model of the Cisco XR 12406 Router, the mounting rails on
a 4-post rack must be recessed no more than 1.5 inches for the front door to
fully open and close and to provide adequate room for cable routing.
•
The height of the Cisco XR 12406 Router is 18.5 inches (46.9 cm). Most
7-foot (2.15-m) equipment racks will accommodate four Cisco XR 12406
Routers. Allow sufficient space in the rack for the router.
•
When fully populated with cards, a Cisco XR 12406 Router can weigh as
much as 205 pounds (93 kg). If you use a telco-style rack, the weight of the
chassis is cantilevered off of the two rack posts. Ensure that the weight of the
router does not make the frame unstable. Be sure that the frame is bolted to
the floor and is secured to the building structure, either to wall or to overhead
brackets.
•
Do not route cables in such a way as to disrupt movement in front of or behind
the rack. To avoid noise interference in network interface cables, do not route
them directly across or along power cables. Use appropriate strain-relief
methods to protect cables and equipment connections.
•
Install and use the cable-management brackets included with the router to
keep cables organized and out of the way of line cards, power modules, and
blower modules. Consider the equipment and cabling that is already installed
in the rack. Ensure that cables from other equipment do not impair access to
the card cages, requiring you to disconnect cables unnecessarily to perform
equipment maintenance or upgrades.