Chapter 1 Preparing for Installation

Site Requirement Guidelines

Figure 1-6 Equipment Rack Types

a

b

243453

c

a

Telco-style rack

b

Free-standing, 4-post open

c

Free-standing enclosed rack

 

 

 

rack with two mounting

 

with perforated sides and

 

 

 

posts in the front, two

 

two mounting posts in the

 

 

 

mounting posts in the back

 

front

 

 

 

or along each side

 

 

 

 

 

 

 

 

Telco 2-Post Rack

Item a in Figure 1-6shows a telco-style rack. The telco-style rack is an open frame consisting of two posts tied together by a cross-bar at the top and a floor-stand at the bottom.

This type of rack is usually secured to the floor, and sometimes to an overhead structure or wall for additional stability. The router chassis can be installed in the telco-style rack only in a front-mounted position.

In the front-mounted position, you secure the chassis rack-mounting brackets directly to the rack posts (see Figure 1-7as an example of a Cisco ASR 9001 Router rack mounting). Two rear mounting brackets are provided for mounting the Cisco ASR 9001 Router in a 2-post rack.

Note The mounting brackets on the Cisco ASR 9001 Router chassis have a pair of holes at the top and bottom of each bracket; the remaining openings in the brackets are slots. If the Cisco ASR 9001 Router is to be mounted in a 2-post 19-inch rack, you must first use the holes to locate and position the brackets on the rack. Insert screws through the bracket holes into the rack before inserting screws through the bracket slots.

Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide

 

OL-26701-02

1-9

 

 

 

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Cisco Systems ASR9001s, 9001S manual Telco 2-Post Rack, Equipment Rack Types