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+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
MileGate GPON
GPON Platform for FTTH/FTTB Applications
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
Content GPON Platform for FTTH/FTTB Applications
FTTH/FTTB Infrastructure
MileGate integrated GPON
MileGate ONT Units
FTTH/FTTB Advantages
MileGate OLT Units
MileGate Benefits
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
FTTH/FTTB
Infrastructure
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
FTTH / FTTB Infrastructure Alternatives
Point to Point CO
CO
CO
Point to Multi-Point (AON)
Point to Multi-Point (PON)
Active Node
Passive Optical
splitter
Optical fiber
Optical fiber
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
FTTH/FTTB GPON Architecture
Advantages
Lower costs for investments in Infrastructure due to passive splitters
Disadvantages
Optical fibre architecture can be used with PON only
Later decision towards Point-to-point leads to further investments
© KEYMILE
16 - 128
Subscribers
3,000 – 5,000
Subscribers
Packet Network
ACCES NETWORK
SUBSCRIBER
BACKBONE
Optical Line Termination
(OLT)
Passive optical
splitter
Advantages
Lower costs for investments in Infrastructure due to passive splitters
© KEYMILE
Typically up to 20 km (28 dB)
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
FTTH/FTTB
Advantages
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
GPON Advantages
Shared infrastructure translates to lower cost per customer
Minimal number of optical transceivers
Feeder fiber and transceiver costs divided by n customers
Passive splitters translate to lower cost
Can be installed anywhere
No power needed
Essentially unlimited MTBF
Fiber data-rates can be upgraded as technology improves
now 1.25Gbps, 2.5Gbps
soon 10Gbps
20 km reach in case of 28 dB optical budget
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
GPON Advantages
High performance despite shared medium
DBA: Dynamic Bandwitdh Allocation
Rate limiting as demanded from the customer product
GPON Encapsulation (GEM) supports multiple data types
simultaneously
Ethernet: natively supported
TDM: natively supported or through circuit emulation service
(CES) over IP / Ethernet
ATM: natively supported, but unfavorable, as operators convert
to Ethernet-/IP-Netze
ONT Management and Control Interface (OMCI)
93% bandwidth efficiency
As per standard, up to 8 classes of service
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
Introducing MileGate-integrated
GPON
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
FTTH Passive Optical Network with MileGate and SUGP1
SUBSCRIBER
METRO Node
Up to 160 GPON Ports per
8 HU Subrack
(5120 subscribers / 1:32 split)
Core Network
SUE N 3
SUE N 3
SUE N 3
SUGP1
COGE4
METRO/REGIONAL
NETWORK
ACCESS NETWORK POTS
Ethernet
IPTV
Telephony
TV
Internet WLAN
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
FTTB connections with SUGP1 and MileGate 2011
10/40 Gbps
Core Network
MileGate 2011 with GPON interface
V+
V–
P+
P–
V+
V–
P+
P–
V+
V–
P+
P–
n x
VDSL2
© KEYMILE
SUGP 1
COGE4
GPON
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
MileGate OLT Units
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
MileGate Integrated GPON OLT Card SUGP1 - Introduction
SUGP1 is optimal for Fiber-to-the-Home (FTTH) and Fiber-to-the-
Building (FTTB) applications
8-port GPON interfaces acc. to ITU-T G.984
each with 2488 Mbps downstream / 1244 Mbps upstream
Up to 64 ONUs/ONTs per GPON port
SUGP1 satisfies the high demands on operation in street cabinets
SUGP1 can be installed in following MileGate subracks
MileGate 2510
MileGate 2310
MileGate 2200
Can be installed in combination with all other MileGate units
© KEYMILE
SUGP1
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
MileGate Integrated GPON OLT Card SUGP1
Services supported:
1:1 double-tagged and single-tagged
N:1 double-tagged and single-tagged with logon (via PPPoE/DHCP)
IGMP / Multicast
Service functionality close to SUE12 and SUV11 boards
Single slot unit with 1GbE and 10GbE backplane interfaces
to the Core Units
Management via MCST and UNEM
Broadcom GPON chip is used
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
MileGate 40G-Uplink Core Unit COGE4
40 GbE / 10 GbE Netzwork-Interfaces
2 x optical 40GbE (QSFP+) oder 10GbE (QSFP+)
3 x optical GbE/10GbE (SFP/SFP+)
Management-Interface
1x electrical 10/100/1000 Mbps (RJ45)
Synch I/Os (2MHz) – Input for the reference clock
Single-slot Unit for MileGate 2310 and MileGate 2510
1GbE and 10GbE Backplane-Interfaces
1:1 COGE4 Equipment Protection via 40G-Connection
HW-ready for Synchronous Ethernet for all Ethernet-Frontports
HW-ready for IEEE 1588v2 (PTP) for all Ethernet-Frontports (Use
case mobile backhaul)
Uplink MPLS-Support with later SW Upgrade
© KEYMILE
COGE4
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
MileGate Integrated XG-GPON OLT Card SUGP2
Single slot unit for MileGate 2510 and 2310
4-port XG-GPON interfaces acc. to ITU-T G.987 Each with 10 Gbit/s downstream / 2.5 Gbit/s upstream
or 10 Gbit/s downstream / 10 Gbit/s upstream
Up to 128 ONUs/ONTs per XG-GPON port
10GbE backplane interface
XG-GPON chip Broadcom or PMC-Sierra
No commercial chipsets available yet
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
MileGate ONT Units
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
MileGate GPON ONTs – Sample CPE Genexis Element G-1030
GbE Network Termination ONT
1 port GbE (RJ45, 10/100/1000 auto MDI/MDIx)
According to ITU-T G.984 GPON
(maximum 2,5 Gbit/s downstreams / 1,25 Gbit/s upstreams)
Triple-Play Multi-Service:
High-Speed Internet
Voice
IP Multicast TV
Can be extended with Hybrid Live! Titanium Home Gateway
Module (optional)
4x GbE, 2x FXS, WLAN IEEE 802.11b/g/n (2.4 GHz), 2x USB
Variant with CATV interface (RF overlay) available (Genexis
Element G-1034)
Implementation according to BBF TR-142 issue 2 – BBF certified
© KEYMILE
Element G-1030
Live! Titanium
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
GPON
Technology
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
GPON ODN
0
50
100
150
200
250
10 km 15 km 20 km
Class A
Class B
Class B+
Class C
ODN Class
A = 21 dB
B = 26 dB
B+ = 29 dB
C = 31 dB
Assumptions
0.5 dB/km
0.5 dB/connector
MDF
OLT
Splitter
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
Optical Splitters – Product Line Specifications
(1) Measured at room temperature in 1310nm and 1550nm
1 x 4 1 x 8 1 x 16 1x 32 1 x 64
Premium Grade
Maximum Inseration Loss (dB) 6.7 9.8 13.0 16.0 19.6
Uniformity (dB) < 0.6 < 0.7 < 0.7 < 1.0 < 1.4
A Grade
Maximum Inseration Loss (dB) 7.0 10.0 13.2 16.2 19.8
Uniformity (dB) < 0.6 < 0.8 < 1.0 < 1.2 < 1.5
General Operating Specifications
Operating Wavelength (nm) 1250 – 1650
Maximum PDL(1) (dB) < 0,15 < 0.2 < 0.25
Return Loss (dB) > 55
Operating Temperature (°C) -40 to +85
Storage Temperature (°C) -40 to +85
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
LB = ׀ PS ׀ -׀ PO ׀
LB = Link Budget
PS = Sensitivity
PO = Output Power
Example: GPON 1310nm
Power: 0dbm Single-mode fiber
Sensitivity: -23dbm
} Link Budget: 23db
Budget Calculation
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
Assume:
Optical loss = 0.35 db/km
Connector Loss = 2dB
Splitter Insertion Loss 1X32 = 17dB
Range Budget: ~11Km }
http://www.evertz.com/tools/optical-power-budget-calculator
Typical Range Calculation
0.35
2-SILL=R
B
B
-
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
Overview ONT Activation
ONT Discovery
OLT recognizes arrival of an ONT
OLT discovers the Serial Number
OLT assigns ONT_id to ONT
ONU ID: between 0…253 for ONU (254 for broadcast)
ONT Ranging
OLT measures arrival phase
OLT provides equalization delay
ONT adjusts TX phase
Services can be provisioned
© KEYMILE
+ Benefits System Overview Introducing Alternatives FTTH/FTTB Content Feature Set
ONT Ranging
Upstream traffic is TDMA (time division multiple access)
Were all ONUs equidistant, and were all to have a common
clock
then each would simply transmit in its assigned timeslot
But otherwise the signals will overlap
To eliminate overlap
guard times left between timeslots
each ONU transmits with the proper delay to avoid overlap
delay computed during a ranging process
© KEYMILE