52BU 500-Line Remote Outdoor Cabinet
The Tellabs 52BU 500 incorporates the latest environmentally controlled design technology to meet broadband demands for hardened outside plant cabinets.

Features and Benefits

  • Telcordia compliant design cabinet is expandable from three shelves to four
  • Fiber splice and distribution options
  • -48 VDC powered cooling fans
  • Separate vented battery compartment and battery back-up options
  • Standard surge protection
  • Copper line protection in separate compartment (non-cross-connect configurations)
  • Hex key lock (padlockable for additional security)

Included Highlights

Easy Access

Front, rear and side doors are equipped with key locks and padlock tabs. The side door provides controlled access to the protector panels. With a total capacity of 500 lines, the Tellabs 52BU is designed for POTS or heavy broadband installations requiring optimal ADSL service card capacity.

Converge Services

Like all Tellabs cabinets, the Tellabs 52BU supports POTS, ISDN,special services, T-1, xDSL and fiber. The cabinet can be deployed in any network topology (point-to-point, star, tree), including integrated (GR-303, TR-08) and universal configurations (TR-57).

Optimize Thermals

The Tellabs 52BU incorporates the latest environmentally controlled design technology to meet broadband demands for hardened outside plant cabinets. It has been tested to GR-487 CORE and has a documented level of performance with respect to noise level, salt fog, transportation, dust and water intrusion. It can support up to four Tellabs 1000 (MSAP) CBAs with fan shelves, protector panels, batteries, and a charge/rectifier.

Extend Connectivity

The Tellabs 52BU Remote Outdoor Cabinet is an outside plant enclosure supporting Tellabs 1000 Multiservice Access (MSAP) Channel Bank Assemblies (CBAs)with fan shelves, protector panels, charge/rectifier and batteries. The Tellabs 52BU cabinet enables service providers to costeffectively deploy high densities of broadband services, such as ADSL and VDSL.


  • Dimensions: 75 in (H); 46 in (W); 26.3 in (D)
  • Battery heater pads
  • Cabinet mounting: pad only
  • Finish: smooth almond, no texture, powder coated
  • Weight: 825 lb (without batteries or plug-in cards)
  • Dimensions: 75 in (H)
  • Variable speed fan tray assemblies on at 10° C (50° F), max speed at 65° C (149° F)
  • Variable speed heat exchanger fans on at 15° C (59° F), max speed at 65° C (149° F)
  • -48 VDC powered cooling fans
  • Standard surge protection
  • Generator connectors: 30 Amp NEMA
  • DC Power: GE CPS6000 Systems
  • AC Input: 32 A max, 240 VAC
  • Optional pour and place pad template
  • Pad layout: 90" (W) x 68" (D)
  • 710 connectors
  • Protector panels installed in electronic compartment
  • Alarms generated: Rectifier fail, intrusion (door open), AC power fail and fan fail
  • Telcordia GR-487-CORE, Issue 3
  • FCC Part 15, Subpart B
Product Specifications Sheet

52BU 500-Line Remote Outdoor Cabinet
Product Specifications
Related Services
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