FTTP Implementation

1
FTTP Implementation

• ACE Seminar- April 2004
• Gary M. Larson, PE
• Communication Network Engineers

2
Goals

• Gain a perspective on advances in FTTP equipment
  and installation practices
• Identify the unique issues in construction
• Development of Best Practices
• Development of special FTTP hardware
• Identify unique interface requirements
• Avoid Reinventing the Wheel

3
Outline

• PON technology quick tour
• Basic system layout and hardware function
• Inside plant issues
• Outside plant issues
• Premise issues
• Operation issues
• Special considerations for success

4
PON Technology- A quick tour

• Passive Optical Network
• No active electronics in the field
• 1X2, 1X4, 1X8, 1X16, 1X32 splitters
• Fiber Drive in the CO (OLT)
• Fiber Point at the customer premise (ONT)
• 32 customers per fiber
• 4 fibers per BPON / GPON
• 9 GPON / BPON per Fiber Drive shelf- 1152 subs
• Local power required at the customer site
• Triple Play interfaces at the CO

5
PON Technology- A quick tour

• Early systems had two separate fibers for voice /
  data and video
• New GPON systems utilize CWDM for single fiber
• Customer power developed into a standard APC
  unit per ONT
• Buried or pedestal splitter enclosures are a
  telco choice
• Example pictures of actual installations and
  plant layout

6
FTTP Equipment
7
Inside Plant Issues

• Voice interface GR303 standard
• External synchronization required for Fiber Drive
  (OLT)
• Future H.248 interface?
• Internet interface either 10/100 or GigE to BPON
  / GPON card
• Large T3 pipe recommended to backbone network
• large WAN router and GigE switch recommended
• Subscriber Management System recommended

8
FiberPoint
When provisioning Data at the Subscribers
premise, up to 8 Static IP addresses can be
provisioned. Another option is DHCP, up to 8
DHCP addresses can be served by the FiberPoint
(this is provisioned in the Data Service
Profile). Finally, a combination of Static and
DHCP can be used (again only up to 8 IP
addresses).
1 X 32 Optical Splitter
9
Inside Plant Issues

• Fiber cable housekeeping
• Fiber cross connect panels
• Fiber tray system
• Fiber Drive OLT location
• Central office
• Field locations require HVAC

10
FTTP Equipment
11
Inside Plant Issues

• Video either RF or IP
• RF Video
• RF video is unique to FTTP
• CWDM allows single fiber system
• Typically available from existing analog head end
• RF video requires expensive EDFA amps and drives
  design of coverage area
• No STB required- simple and low cost
• Telco return required for PAY channel charges

12
Inside Plant Issues

• IP Video
• IP video is digital and does not noise up or
  degrade like RF video
• IP video is transported with the internet data
• 10/100 Ethernet interface in optical NID
• Middleware is required to operate Set Top Box
  (STB)
• IGMP controls multi- cast on system
• CAT 5 cabling required to STB

13
Outside Plant Issues

• Splitters- The three most important factors
• Location, Location, Location
• How come so many choices?
• 1X2, 1X4, 1X8, 1X16,1X32
• Buried plant splice enclosures for splitters
• Coyote case history- copper to fiber PON
• Re-entry for new subs an issue
• Specialized pedestals available- LCC cabinet
• Bonding and grounding field issues
• Best practice combines ground cables outside
  enclosure
• Fiber splices
• Angle polished connectors (APC) required for low
  dispersion
• Fusion or mechanical splice choices

14
Outside Plant Issues
15
Outside Plant Issues

• LCC Cabinet
• Local Convergence Cabinet
• Mfg by Corning
• 192 Distribution fibers
• Pole or pad mounted
• Equipped as you grow

16
Customer Premise Issues

• A system is only as good as its weakest link and
  it is usually the premise wiring
• New construction is an opportunity to do it right
  with contractor and developer
• AC power receptacle is required for optical ONT
  Fiber Point
• Grounding is important for QOS and safety and
  required per code

17
TYPICAL HOUSE WIRING FTTP WITH IP VIDEO
BEDROOM
LIVING ROOM
KITCHEN
FiberPoint Demarcation
1
2
GROUND LEVEL
3
4
10 15 VDC 20 Cable
5
FAMILY ROOM
OFFICE
115 VAC
1. FiberPoint Customer Premise Equipment 2.
Coax Distribution Panel (Splitters should be 1
GHz) 3. Cat 5 IP Ethernet DSL / TV, Hub,
etc. 4. Cat 5 Telephone Voice, Connection
Block, etc. 5. Local Power Converter
18
Operations Issues

• Basic element management system is included
• PC system with or w/o LAN network
• Allows complete OAMP of Fiber Drive system
• Monitors battery condition of each Fiber Point
• Can predict replacement of subscriber batteries
• Management of voice features still required at CO
  switch
• Management of video performed by middleware EMS
  system such as VideoTele.com, Minerva and others
• Management of internet
• Internet service billing has same multitude of
  options as other systems in common use- Usage or
  flat rate
• Internet service can be DHCP, Static or PPOE
  protocol

19
Special considerations for success

• Developer issues
• Your Partner for better or worse
• Triple Play success issues
• Business office live demonstration
• Build it and they will come?
• Open houses
• Developers and Home shows
• Public Technology Events
• Fiber Powered Homes

20
Special considerations for success
21
THE END

• Thank You!

Special Thanks to the following for suggestions
and materials Baldwin Telecom Inc Federated
Telephone Cooperative Lonsdale Telephone
Company Optical Solutions Inc
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SPONSORS