Emerson NetSure DCS 48375 Guía de usuario descargar pdf (Pagina 26)

SAG584622100, SAG584622200 System Application Guide

SAG584622300, SAG584622400 Spec. Nos. 584622100, 584622200

Issue AC, July 3, 2012 584622300, 584622400 (Model DCS48375)

Page 26 of 34

This document is property of Emerson Network Power, Energy Systems, North America, Inc. and contains confidential and proprietary information owned by Emerson Network Power, Energy

Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.

SPECIFICATIONS

Note: For DC-DC converter module specifications, refer to UM1C24481500 (Converter Module User

Instructions).

1.1 System Output Ratings

1.1.1 Voltage: Nominal -48 volts DC, positive ground. User adjustable for either -48VDC, -50VDC,

-52VDC, or -54VDC.

1.1.2 Current: 375A, maximum (Converter Output + Distribution. Load).

125A, maximum (Converter Output) per shelf.

250A, maximum (Distribution Load) per distribution row.

1.2 System Input Ratings

1.2.1 Input Voltage: Nominal +24 volts DC.

1.2.2 Nameplate Rating:

(A) Individual Feed: +20.5 to +30 volts DC, 87 to 59A.

(B) Dual Feed (one input per two converters): +20.5 to +30 volts DC, 175 to 120A.

1.2.3 Filtering: Noise reflected back to the central office battery is within the parameters set forth in

Telcordia Technical Reference TR-TSY-000009, paragraph 5.0, using test measurements in

Telcordia Technical Reference PUB 43802, pages 5 and 6.

1.3 System Environmental Ratings

1.3.1 Operating Ambient Temperature Range:

(A) -40°C to +40°C (-40°F to +104°F).

Overcurrent devices rated 100A or greater MUST HAVE a space adjacent to it. Maximum

size circuit breakers that can be used are 100A single pole, 200A double pole, and 250A

triple pole. Maximum size fuse is 100A.

(B) -40°C to +65°C (-40°F to +149°F), with derating.

For ambient temperatures between +40°C (+104°F) and +65°C (+149°F), overcurrent

devices rated 60A or greater MUST HAVE a space adjacent to it. Maximum size circuit

breakers that can be used are 70A single pole. No double pole or triple pole circuit

breakers can be used. Maximum size fuse 70A.

1.3.2 Storage Ambient Temperature Range: -40°C to +85°C (-40°F to +185°F).

1.3.3 Humidity: Capable of operating in an ambient relative humidity range of 0% to 95%, non-

condensing.

1.3.4 Altitude: Capable of operating in an altitude range of -200 feet to 10,000 feet. The maximum

operating ambient temperature should be derated by 3°C per 1000 feet above 5000 feet.

1.3.5 Ventilation Requirements:

(A) Ventilation: A shelf must be mounted so ventilating openings are not blocked and

temperature of the air entering the shelf does not exceed the Operating Ambient

Temperature Range stated above.

(B) Stacking Considerations: This system is designed for front to back ventilation to

facilitate stacking of shelves, one above the other, in a relay rack. There is no spacing

requirement between stacked shelves of a single system.

1.3.6 Audible Noise (System): With four converter modules installed and operating, the audible

noise at any point 5 feet from any vertical surface of the mounting shelf does not exceed 68

dBA when measured with a sound level meter conforming to ANSI S1.4.

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