AT&T Classic Mail Design Package 1.6 Manual de usuario descargar pdf (Pagina 36)

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

AT&T Services, Inc. June 2014

b. Outside Plant / Cell site application: Equipment does not require earthquake tests to

be conducted; however, equipment shall use mounts suitable for resisting

earthquake loads. Network equipment intended for outside plant / Cell site

applications and designed in accordance to GR-3108 will be in conformance

following requirements of Carrier Grade equipment.

B) Level 3 - Compliance Reviews:

a. Carrier Grade / Non-Carrier Grade application: Network equipment shall be

designed for service in high seismic risk locations. Equipment shall demonstrate

conformance to Telcordia GR-63-CORE, or ATIS-0600329 earthquake requirements

by having equipment assembly tested on shake table and submitting documentation

of successful test results.

b. Outside Plant / Cell site application: Equipment shall be designed for service in high

seismic risk locations. Equipment shall demonstrate conformance to Telcordia GR-

3108-CORE, Section 6.3.2 earthquake requirements by having equipment assembly

tested on shake table and submitting documentation of successful test results.

9.4 Positive Latching

All network equipment shall have circuit pack latches or retainers to prevent pack and

module walkout. Ejectors are not retainers and should not be used for that purpose.

9.5 Hard Drive Backup

Hard drive storage units used with network equipment shall be designed with tolerance for

shock and vibration by physical isolation of drives, backup systems or self-recovery

capabilities to assure service integrity.

9.6 Standard Frame

Network equipment shall be designed for mounting in telecommunications industry

standard framework, relay racks. However, equipment deeper than 12 inches, heavier than

400 pounds or designed for special housings may require framework other than standard

relay racks. For safety consideration, a loaded framework during transport or on site

awaiting installation should temporarily be able to stand upright on its own when not

secured. If weight distribution of equipment in framework results in framework falling

backward or forward, special deeper framework is to be provided.

9.7 Shelf Support Frame

All network equipment assemblies 7’-0” tall and under shall be designed for freestanding

installation in AT&T equipment areas. Freestanding is defined as framework not secured

overhead but with provisions for floor anchors of appropriate size and quantity to secure

equipment from overturning under worst-case site conditions.

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AT&T Classic Mail Design Package 1.6 Manual de usuario Pagina 36