Nortel Networks 1000M warranty Large Candeo modules, Rectifier 50/48 Module

Installing DC power Page 97 of 456

Large Candeo modules

The Candeo platform uses a combination of modules or building blocks to deliver custom configurations. The modules include:

1Rectifier 50/48 Module

2System Manager Module

3Distribution 500 Module

Rectifier 50/48 Module

The shelfless Rectifier 50/48 provides up to 50 A (2 750 W) of –48 V DC power. Designed to operate at a nominal input voltage of 208/240 V AC, the rectifier will also operate over an input range of 80 V AC to 300 V AC (45 to

65Hz) at reduced output power. The rectifier delivers full output power when operating in environments ranging between 0°C (32°F) and 50°C (122°F).

Rectifier features include:

•High power density — 4.3 W /in.

•High efficiency (> 92%)

•Shelfless design

•Hot insertable

•Tool-less rectifier installation

•100% tool-less maintenance strategy

•Ultra-low total harmonic distortion (THD) < 5%

•Temperature-controlled cooling fans

•Mean time before failure (MTBF) > 250 000

•Zone 4 seismic

•Compliant with global standards (FCC part 15 class B, UL 1950, CSA 22.2#950, CE, VDE, IEC 950, and CISPR22 class B)

Communication Server 1000M and Meridian 1 Large System Installation and Commissioning