2911 Front To Back Air Flow Converter - Cisco 2900 Series Installation Manual

Chapter 5 Installing and Upgrading Internal Modules and FRUs

2911 Front to Back Air Flow Converter

The 2911 Air Converter forces the routers to take in (intake) air from the front (bezel)
allow it to go out through (exhaust) the back (business)
Back Air Converter still allows the router to run over its full temperature operating range. The pieces of
the 2911 Air Converter are symmetric, and hence, if required, instead of the default 2911 side to opposite
side venting direction, they can be reversed to facilitate back-to-front air flow. The 2911 with 2911 Front
to Back Air Converter installed adds width to the router and requires it to be installed only in a EIA
23-inch rack. Based on the requirement, the rack mount brackets can be positioned on the front, centre,
Inside, or outside.
Note
Figure 5-42
1
Note
The installation of the 2911 Air Converter requires only two rack-mount brackets.
Front View of the Cisco 2911 Router with the 2911 Air Converter
1
Rack mount brackets
The 2911 router view shows the rack mount brackets installed at all possible locations. You can
choose one of these four positions to install rack mount brackets.
(Figure 5-43). Installation of the 2911 Front to
Cisco 2900 Series and 3900 Series Hardware Installation Guide
2911 Front to Back Air Flow Converter
(Figure 5-42) and
5-51