1048 Channel Bank Assembly (CBA) Rectifier Shelf
The Tellabs™ 1048 Channel Bank Assembly (CBA) Rectifier Shelf is 1 RU tall and 10 inches wide, and has space for two 600-Watt hot-swappable Rectifier Modules (sold separately). It mounts in the top location of the Wall-Mount Swing Rack, above the Tellabs 1048 CBA card cage.

Features and Benefits

  • With a 120 VAC input the Rectifier Module has 600 Watts output
  • Second Rectifier Module can be installed in the Rectifier Shelf to provide a redundant DC power source
  • Part of our CBA1048 Fiber-to-the-Business Solution
  • Single Rectifier Module installed in the Rectifier Shelf has sufficient capacity to power the Fan Tray and the CBA1048

Included Highlights

Air Flow

A perforated front panel in front of each Rectifier Module slot allows cooling air for the Rectifier Module to be drawn in. Perforations in the CBA1048 Rectifier Shelf rear panel allow the Rectifier Module cooling air to escape into the room.

Easy Access

Rectifier Modules are installed into the CBA1048 Rectifier Shelf from the front, after removing the front panels. The Rectifier Modules have a PCB edge extending about a half inch from the Rectifier Module rear panel that engage edge connectors at the back of the slot when the Rectifier Module is fully inserted.

Redundancy Option

If two Rectifier Modules are installed in the shelf and one fails, the CBA1048 and Fan Tray (if installed) continue to operate normally. The failed Rectifier Module can be removed from the CBA1048 Rectifier Shelf and replaced while the power is on. Once the failed Rectifier Module is replaced, DC power redundancy is restored to the system.

Rectifier Modules

The CBA1048 Rectifier Shelf has two slots for slide-in Rectifier Modules and a standard IEC AC input power connector for each slot on the rear panel. AC input power for each slot passes through a line filter inside the shelf. DC output power from each Rectifier Module passes through a ferrite bead on the way to separate DC output connectors on the rear panel of the Rectifier Shelf.


  • AC supply frequency range: 50 Hz to 60 Hz
  • AC supply current maximum: 6 A
  • AC supply voltage range: 100 VAC to 240 VAC
  • DC output voltage: 53.5 VDC
  • DC output current maximum: 16.3 A
  • DC output power maximum: @120 VAC input 600 W
  • NEBS (GR-1089 Issue 6 and GR-63 Issue 4) Compliant
  • UL-60950-1 (issue 2011)
  • CSA C22.2#60950-1 (issue 2014)
  • Operating temperature: -40° C to +65° C (-40° F to +149° F)
  • Storage temperature: -40° C to +70° C (-40° F to +158° F)
  • Humidity: 5%–95% non-condensing
  • Height: 1.5 in (3.8 cm) 1 RU
  • Width: 3.3 in (8.4 cm)
  • Depth: 9.3 in (23.6 cm)
  • Weight: 2.5 lbs (1.1 kg)
Product Specifications Sheet

1048 Channel Bank Assembly (CBA) Rectifier Shelf
Product Specifications
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