AT&T Classic Mail Design Package 1.6 Manual de usuario descargar pdf (Pagina 40)

Equipment Physical Design Standards ATT-TP-76200, Issue 19

AT&T Services, Inc. June 2014

Framework and Equipment Requirements

A. Equipment and framework intended for legacy environments of two post

framework lineups:

a. Framework shall be designed for freestanding configuration not requiring

overhead support with maximum height of 7’-0”. Framework base shall have

provisions for floor anchoring of anchor hardware up to 18mm diameter and

capabilities for repositioning anchors at minimum of 1” to avoid rebar. AT&T

requirements require all framework to be designed and tested for Zone 4 service.

b. Equipment unit shall be designed for 23” or 19” nominal width mounting and fit

within uprights of a standard 23” width framework. Where 19” equipment is

provided, mounting adapters shall be provided for installation in 23” width

framework. (Limited applications of 19” nominal width framework are used and, if

designated, equipment shall be designed to fit within 17-1/4” clearance between

frame uprights.)

c. Framework should not exceed 2'-6" in overall width.

d. In legacy transport environments equipment and framework should not exceed

15” in depth when adding to existing lineups.

e. In newer technology lineups equipment and framework shall not exceed 24” in

depth.

f. Should facilitate a nominal rear aisle of 2’ 6” or greater and a nominal front aisle

of 3’ 0”or greater for equipment installation and maintenance purposes.

g. Where product requires additional cabling space adjacent to equipment

framework, designate on form ESP-001 and/or ESP-002 under Engineering

Data, Additional Space Requirements.

B. Equipment intended for four post framework installation lineups:

A. Framework shall be designed for freestanding configuration not requiring overhead

support with maximum height of 7’-0”. Framework base shall have provisions for

floor anchoring of anchor hardware up to 18mm diameter and capabilities for

repositioning anchors at minimum of 1” to avoid rebar. AT&T requirements require

all framework to be designed and tested for Zone 4 service.

B. Equipment unit shall be designed for 23” or 19” nominal width mounting and fit within

uprights of a standard 23” width framework. Where 19” equipment is provided,

mounting adapters shall be provided for installation in 23” width mounting rail

configuration.

C. Framework width shall be designed for maximum 30” width.

D. Framework depth shall be designed for 24” to 36” depth.

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AT&T Classic Mail Design Package 1.6 Manual de usuario Pagina 40