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Background Information

QuantaBits's team is comprised of talented engineers from some of the most recognized and successful networking companies in the world. In early 2003 QuantaBits started R&D for a software solution running on an emerging Ethernet based PON technology to address the problems facing the networking giants today. Today QuantaBits's software and hardware works together synergistically running on the most advance 10Gb Ethernet based PON platform, utilizing Linux for all Software Defined Networking (SDN) features, Open Stack and Cloud services.

This revolutionary software and hardware architecture combined with PON will prevent competition from entering our market space. Competition is locked in their existing product architecture due to legacy product support. Their new technologies come in a module format which plugs into an archaic, bottlenecked, legacy platform supporting legacy protocols of which many are no longer in use today.

QuantaBits has the first true Ethernet on Fiber Cable [EOFC ] tailored to companies that provides Internet access, Transit and Transport of data, Traffic shaping, Wireless and Cellular access. By cutting out the unnecessary clutter required for a SONET based system, our products are more energy efficient and have a lower production cost. As a result, this translates to a decrease in total equipment and operating costs for our customers.

Benefit Highlights

Frequently Asked Questions

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    What are the benefits of QuantaBits's Ethernet Passive Optical Network?

    • Our passive optical solution saves you energy while transmitting upstream and downstream over a single fiber.
    • Up to 70% less Equipment CapEx
    • Up to 50% less Infrastructure CapEx
    • Up to 80% less power consumption
    • Up to 90% less space utilization
    • 5-9s reliability, physical redundancy and provisionable QoS
    • Tangible contributions to environmental green initiatives
    • Future proof fiber optic cabling infrastructure
    • Year-over-year lower total cost of ownership (lower OpEx)
    • Graceful migration to a fully converged IP network
    • Do more with less; service more customers using less rack space. Condense 1024 fiber optic nodes to a single port. We offer small form factor SFPs to 12U solutions. We can leverage our high port density to condense many of your current appliances into one solution.
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    What are the beneifts of EPON?

    • Unlike GPON, EPON (also known as GEPON) uses Ethernet standard as its protocol, lowering deployment, maintenance & infrastructure costs by at least 50%.
    • EPON interoperates not just on basic levels with other EPON vendors, but advanced services like encryption and multicast for video broadcasting are functional in a vendor mixed network. GPON ONUs need to match GPON OLT in order to offer all services, and interoperability is limited.
    • Unlike GPON, EPON is Ethernet all throughout the system, no other transport gear needed, no translation from protocols to protocols thus lower latency.
    • EPON reach starts from few meters to 80km between the OLT and ONUs, no signal regeneration needed, can be daisy-chained to go further.
    • All QuantaBits' EPON equipment with mixed speeds 1&10G can coexist on the same fiber at the same time while GPON has no 10G ITU standard or 10G deployments worthy equipment. ITU offered no migration path from BPON to GPON, and they may abandon the upgrade path from GPON to XGPON.
    • Mixed speeds 1G & 10G, 10G & 40G, 10G & 100G, can coexist and are backwards compatible. There is no throw away upgrade path.
    • IEEE networks are always backwards compatible. 1G EPON will work with 10G EPON and back and forth. Also two speeds of EPON can coexist at the same time on the same fiber.
    • EPON is the choice of all Cable Operators, and works perfectly in Data Centers.
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    Why is 10G EPON necessary?

    • A large number of broadband users live in Multiple Dwelling Units (MDUs) and each of 32 MDU ONUs can provide service to 10-24 subscribers, a total of 320-768 subscribers per EPON. Calculations shown for 10/ONU only.
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    What happens when you use GPON?

    • With both PON protocols, a fixed overhead is added to convey user data in the form of a packet. In EPONs, data transmission occurs in variable-length packets of up to 1518 bytes according to the IEEE 802.3 protocol for Ethernet. In ATM-based PONs, including GPONs, data transmission occurs in fixed-length 53-byte cells (with 48-byte payload and 5-byte overhead) as specified by the ATM protocol. This format makes it inefficient for GPONs to carry traffic formatted according to IP, which calls for data to be segmented into variable-length packets of up to 65,535 bytes.
    • For GPONs to carry IP traffic, the packets must be broken into the requisite 48-byte segments with a 5-byte header for each. This process is time-consuming and complicated and adds cost to the central-office OLTs as well as the customer premise-based ONUs. Moreover, 5 bytes of bandwidth are wasted for every 48-byte segment, creating an onerous overhead that is commonly referred to as the "ATM cell tax". This is the case with GPON's ATM encapsulation mode. In its other encapsulation mode, called GEM, the ATM cell tax does not apply.)
    • By contrast, using variable-length packets, Ethernet was made for carrying IP traffic and can significantly reduce the overhead relative to ATM. One study shows that when considering trimode packet size distribution, Ethernet packet encapsulation overhead was 7.42 percent, while ATM packet encapsulation overhead was 13.22 percent.
    • In addition, since Ethernet frames contain a vastly higher ratio of data to overhead than GPON, that high utilization can be reached while using low-cost optics. The more precise timing required with GPON requires more expensive High-precision optics which is part of the GPON standard.
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    What are the CONS of GPON?

    • Unlike EPON, GPON uses ATM/SONET standard as its protocol. This introduces inefficiencies in transmission of traffic.
    • GPON requires intricate and cumbersome configurations to transport Ethernet traffic over GPON network and translate back to Ethernet at the destination.
    • This translations requires more equipment at the provider's location, and therefore the OLT/ONU/ONT costs are higher.
    • XGPON does not allow for GPON to coexist or provide an easy cost effective upgrade path. Upgrading would require a total overhaul of replacing the existing equipment.
    • ALL ITU based networks are becoming legacy and expensive. Ethernet based equipment are becoming more prevalent as the Internet (Ethernet based) becomes more widespread worldwide.
    • The ONLY ITU based networks are the xDSL, T1's and legacy SONET rings.
    • If all traffic is Ethernet based, so why not keep it in the Ethernet protocol? Failing to address that question is why the TDM market collapsed. In 2000 it was a bust for telecom because all voice went to VoIP, an Ethernet based service.
    • ITU standards are Telco standards, and all ITU based gear requires translation between ATM/SONET to Ethernet thus making the equipment slower and more expensive.
    • Notice how ITU based PON is asymmetric. Ethernet is always symmetric not asymmetric thus using ITU based technology for Ethernet connectivity is very expensive. For ITU and Ethernet to work together, requires Special VLANS and exotic provisioning in order to utilize GPON. EPON is simpler and thus more economical.
    • ITU based network requires very skilled and highly paid engineers to integrate two network topologies and standards to talk to each other, thus resulting in higher maintenance and operational cost.
    • There is always a speed hit from one side to the other. If a 2.5G GPON is connected to an Ethernet switch, the maximum throughput is 1G, there is no 2.5G Ethernet.
    • ITU always required a fork lift upgrade from APON to BPON to GPON and to the next XGPON. The same applied to OC circuits. There is no backwards compatibility. Therefore it is very costly to upgrade.
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    How is QuantaBits's EPON Solution unique?

    • QuantaBits the only PON company providing an easy to use provisioning GUI.
    • QuantaBits is the only company to offer a 10G PON equipment
    • QuantaBits products are designed for maximum interoperability and backwards compatibility so upgrading is easy and cost effective.
    • QuantaBits EPON equipment will lower the overall operating and maintenance costs for our customers and our equipment are lower in price than GPON equipment.
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    Does QuantaBits support EPOC?

    • EPoC is in development TODAY.
    • A preliminary Epoc deployment outline.

 

Quantabits vs. Competition

QuantaBits's EPON ProductsCompetition's GPON Products
  1. SDN, Open Source, Cloud ready.
  2. Cable Labs approved, DPoE support, EPoC ready. Dynamic Bandwidth Allocation.
  3. Non-blocking architecture.
  4. Single Mode Fiber for Up/Down traffic.
  5. Extended reach up to 50miles (80km).
  6. Point to Multi-Point. No SONET/ATM ring, no active components.
  7. Ethernet all the way, ultra-low latency.
  8. 75% lower energy consumption.
  9. Low OpEx and CapEx.
  10. Plug 'n Play, GUI Administration, easy to use.
  11. Scalable, upgradable, future proofed.
  12. Interfaces with all standard Ethernet.
  13. 10Gbps upstream and downstream.
  14. Cross Vendor Compatible on OLT/ONU (ONT).
  1. NO SDN, NO Open Source, NO Cloud.
  2. NO Cable support, NO DPoE, NO EPoC. NO Dynamic Bandwidth Allocation support.
  3. Blocking architecture, data multiplexing, limited throughput by uplink port count and legacy switch.
  4. If other than PON used, two fibers are needed for bidirectional traffic.
  5. Limited range to 12miles (20km) unless Point to Point for long haul application.
  6. Active repeaters are used for long distance transmissions.
  7. High latency due to repeaters and protocol translation from Ethernet to ATM/SONET back to Ethernet.
  8. High energy consumption due to legacy support and bandwidth multiplexing.
  9. High OpEx and CapEx due to complexity, design and legacy support.
  10. NO GUI, just CLI, high learning curve to administer.
  11. Does not scale well, fork lift upgrade path.
  12. Needs additional equipment to interface with Ethernet networks.
  13. NO 10G, only 2.5Gb downstream 1.25Gb Upstream.
  14. Cross Vendor compatibility on OLT/ONT problematic.