Automating Fiber Optic Cross-Connect

PON Automated Optical Distribution Frame (AODF-PON™)

As advanced, broadband applications, like high definition video, continue to emerge, it is clear that bandwidth requirements will continue to grow. A traditional PON architecture uses passive splitters with fixed split ratio. An OLT port has to be assigned to every active splitter, sharing the OLT port’s bandwidth among users. Thus, each increase in homes connected to the same splitter, reduces the bandwidth that user can get. Or, the higher the service penetration rate, the lower the guaranteed bandwidth for each user.

In a traditional fixed PON, operators compromise between high split ratios suitable for low penetration rates and lower split ratios that are suitable for higher penetration rates or higher bandwidth demand, typically using splitters with fixed 1:32 split ratio. In fully populated OLT's, this limits the guaranteed bandwidth to 78Mbit/s for a customer.
An example when 32 users share equally 2.5Gbit/s OLT port bandwidth, each one can be guaranteed with only 78Mbit/s (2.5G / 32=78mBit/s.

AODF-PON deployment confers on service providers the flexibility to install only as many OLT ports as needed to serve connected homes, generating savings of up to 50% on OLT ports, thus bearing AODF-PON equipment and installation costs. AODF-PON with 2.5GBit/s-OLT allows up to 300MBit/s guaranteed bandwidth for each customer.

Automated ODF Enhanced with Adaptive Splitting Ratios Capabilities

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AODF-PON - PON-Automated ODF

  • Saves of up to 50% on OLT ports on implementation day
  • Enables an adaptive splitting ratio in PON
  • Supports bandwidth growth by demand
  • Allows gradual service penetration growth
  • Provide OLT ports protection
  • Provides excellent optical performance
  • Makes PON infrastructure remotely manageable and testable

In addition, by automating the operations of fiber-optic infrastructure with TeliSwitch AODF-PON, operators benefit from end-to-end service provisioning and reduce human interventions and errors. Moreover, it enables remote testing and provides OLT port protection.

AODF-PON Features & Benefits

Traditional vs. Enhanced two-level PON topology

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  • Fixed splitting ratio
  • Fully populated OLT from day one
  • Fixed splitting ratio from day one
  • Bandwidth is sensitive to service penetration

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  • AODF-PON with adaptive splitting ratio capabilities
  • Install only as many OLT ports as needed
  • Bandwidth growth by demand

The following table illustrates how the use of the AODF-PON can dramatically improve port use efficiency.

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