Gigabit Passive Optical Networks
Gigabit Passive Optical Networks
Gigabit Passive Optical Networks
Presentation Outline
1 - Introduction to GPON Technology
Fundamentals of GPON Architecture Benefits of Optical LANs Comparison to Active Ethernet and Traditional Copper/Fiber Deployment Analog voice and VoIP support RF video and IP video support Sample Floor Plan Extending GPON Architecture to your Campus/Base Secured PON Solution PON redundancy Fiber Technologies Overview Remote ONT Powering Testing for GPON Infrastructure Current Standards Limitations Impacting GPON Design Recent Standards Updates to Support GPON based Infrastructure Suggestions for Modification to the Standards Bodies
2
5 - Q&A
Section 1
Introduction to GPON Technology
1490nm
20km
1310nm
1490nm
20km
1310nm
1490nm
20km
1310nm
1490nm
20km
1310nm
1490nm
20km
1310nm
Turn this:
Into this:
A single strand of fiber (with a 1x32 splitter) can provided up to 128 GbE end user ports GPON connections are all simplex SC-APC connectors
Source: TE Connectivity Optical LAN Systems Capabilities Overview and Fast Facts
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Section 2
Design Considerations for a GPON Network
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*BICSI TDMM requires 2 cables (copper or fiber) per desk to constitute a work area outlet (WAO) 13
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A desktop GPON deployment utilizes a single, simplex fiber to provide up to four GbE data, RF video and analog voice services
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Analog Phone
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1490nm
1310nm
W D M
1550nm
RF Video Head-End
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Side-by-Side Comparison
Traditional LAN Passive Optical Network
1x32 Splitter
(Ceiling Mounted)
Desktop ONT
(32 per Splitter)
1x8 Splitter
(Rack Mounted)
Single or Multi Mode Fiber Riser Redundant Layer-3 Core WAN/ Internet Core Router
GPON OLT
PON Layer-1 cabling & splitters on average cost 50% less than traditional copper based solutions
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Desk Mounted ONT (Single SM Fiber from Zone Box mounted splitter
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MCN/ADN #1
OSP to ISP LIU
Protected P t t d PON LINK
MCN/ADN #2
Take Away #1: A combination of fiber to the desk and copper based solutions is common to meet differing g customer requirements. q Placing g an MDU ONT in a AV rack in a Conf/Training room can minimize copper cable runs
3rd Floor: Fiber to the Desk & Training Rooms with MDU ONT
Take Away #3: GPON infrastructure does not negate the need to follow cabling best practices or administrative labeling/documentation rituals. It only negates the high density of patch panel racks and patch cables
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GPON
Alarmed PDS
Secure PON
GPON ONT
GPON OLT
Certain network deployments require a redundant fiber path (facility) to the communication closet
- Example: Special C2 users
For these deployment needs, Optical LAN solutions offer the following PON redundancy options
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Optical Switch
2:32 Splitter
1:32 Splitter
1:32 Splitter
GPON ONTs
GPON ONTs
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Section 3
Structured Cabling Overview
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Communications Closet:
Edge Switches vs vs. Passive Fiber Splitter
Before After
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Ease of Installation:
Optical fiber has become increasingly easier to install while copper has b become even more complex, l attempting tt ti t to k keep up with ith performance f demands. No shielding is required to protect fiber optic cables from electromagnetic interference (EMI) or Radio Frequency Interference (RFI) and fiber optic cables are far easier to test and certify.
Unmatched Security:
Harder to tap into than copper and not vulnerable to EMI, optical fiber is inherently safer at keeping information securely flowing where it needs to go and not into the wrong hands.
Easy to Upgrade:
Minimize your network downtime during expansions and upgrades, using your existing fiber optic cable and replacing only the electronics, rather than replacing the entire infrastructure.
Smaller ll Footprint: i
Fiber optic cables have a much smaller size and lighter weight than copper cables providing the same capacity.
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10G Distance Cable OD Weight Minimum Bend Radius Tensile T il Strength St th (Installation)
48 lbf
25 lbf
25 lbf
30 mm 22.8 mm 5 mm
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10G Distance Cable OD Weight Minimum Bend Radius Tensile T il Strength St th (Installation)
48 lbf
25 lbf
25 lbf
30 mm 22.8 mm 5 mm
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Office Environment
Single Mode Link & 22/2 Low Voltage Power Cable Under a Single Jacket
Bulk rectifier with battery back-up, can be existing system. Provides 48Vdc to existing Cat5 cables or hybrid fiber/copper cable
Rectifier
2x2 Ceiling Zone Box w/ 1x32 1RU Splitter and 1RU power distribution unit (32x 1.5A -48Vdc outputs)
FDH
Cable Gauge Max Distance 22/2 250 20/2 350 18/2 500 16/2 750 14/2 1000
Benefits include:
1) Eliminates any requirement for local AC or DC power at the desk. Ideal or placing PoE ONTs in the ceiling plenum without an AC connection 2) Centralizes battery and potentially increases battery back up time at the TR/IDF Closet
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Office Environment
Single Mode Link & 22/2 Low Voltage Power Cable Under a Single Jacket
Bulk rectifier with battery back-up, can be existing system. Provides 48Vdc to existing Cat5 cables or hybrid fiber/copper cable
Rectifier
2x2 Ceiling Zone Box w/ 1x32 1RU Splitter and 1RU power distribution unit (32x 1.5A -48Vdc outputs)
FDH
Cable Gauge Max Distance 22/2 250 20/2 350 18/2 500 16/2 750 14/2 1000
Benefits include:
1) Eliminates any requirement for local AC or DC power at the desk. Ideal or placing PoE ONTs in the ceiling plenum without an AC connection 2) Centralizes battery and potentially increases battery back up time at the TR/IDF Closet
29
Office Environment
Single Mode Link & 22/2 Low Voltage Power Cable Under a Single Jacket
Bulk rectifier with battery back-up, can be existing system. Provides 48Vdc to existing Cat5 cables or hybrid fiber/copper cable
Rectifier
2x2 Ceiling Zone Box w/ 1x32 1RU Splitter and 1RU power distribution unit (32x 1.5A -48Vdc outputs)
FDH
Cable Gauge Max Distance 22/2 250 20/2 350 18/2 500 16/2 750 14/2 1000
Benefits include:
1) Eliminates any requirement for local AC or DC power at the desk. Ideal or placing PoE ONTs in the ceiling plenum without an AC connection 2) Centralizes battery and potentially increases battery back up time at the TR/IDF Closet
30
Office Environment
Single Mode Link & 22/2 Low Voltage Power Cable Under a Single Jacket
Bulk rectifier with battery back-up, can be existing system. Provides 48Vdc to existing Cat5 cables or hybrid fiber/copper cable
Rectifier
2x2 Ceiling Zone Box w/ 1x32 1RU Splitter and 1RU power distribution unit (32x 1.5A -48Vdc outputs)
FDH
Cable Gauge Max Distance 22/2 250 20/2 350 18/2 500 16/2 750 14/2 1000
Benefits include:
1) Eliminates any requirement for local AC or DC power at the desk. Ideal or placing PoE ONTs in the ceiling plenum without an AC connection 2) Centralizes battery and potentially increases battery back up time at the TR/IDF Closet
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OLT
Splitter
(1x32: ~16.7 dB loss)
GPON ONT
Channel Link
(8 28 dB Loss Budget)
Total Channel Link Distance (km): 4 0.5 Total Fusion Splices 4 0.1 Total Mechanical Connectors 4 0.4 Total Bulkhead Adapters 3 0.7 Passive 1x32 Splitter 1 16.7 Total Channel Link Loss:
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Section 4
Standards Bodies Limitations and Suggestions
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The most recent version of the Unified Capabilities Requirements (UCR 2008
Change 3) has specific sections devoted to GPON networks in the military.
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Section 5 Q&A
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