Overview of Access Network V0501
ZTE university
ZTE University
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Course contents •Introduction of access network
• ZTE AN product evolvement
ZTE University
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The transmission part of the telecommunications network consists of trunk network and access network.
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The transport network serves as a carrier of the bearer networks - the PSTN, PLMN and ISDN.
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Definition of Access Network Access network is the implementation system formed by a series of transmission entities and providing the required bearing capability for information transmission service between the service node interface (SNI) and the relative user network interface (UNI).
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Interfaces to the access network
Interfaces to the access network ZTE University
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Interfaces to the access network UNI Customer terminal
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SNI Service AN
node
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Function of Access Network
• It completes the functions of cross connection multiplexing and transmission.
• It transmits the subscriber signaling transparently without any explanation.
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Network for the AN FTTC/FTTR
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Network for the AN Point-to-Point networking: OLTB
ONU
Z¨ V M5
LE
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Network for the AN Chain networking: Z / V5 OLTB
ONU
ONU
LE
ZTE University
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Network for the AN Ring networking: ONU Z/V5 ONU
OLTB L E
Ring network
ONU
ZTE University
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Network for the AN
Ring structure with protection switching ZTE University
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ZTE AN product evolvement •ZXA10-A unit conception –OLTA –ONUA –Built-in optical transmission system •ZXA10-B unit conception ——Traditional main market product of –OLTB –ONUB –Built-in optical transmission system
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ZTE AN product evolvement • ZXA10-C node conception ——MSAN system – OLTC T300/T600 – ONUC U300 – MSTP S300/S200
ZTE University
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•Now use IP+TDM switch mode –Most suitable technology for different services; can support different services; simple; reliable; compatible with existing network. –Completely guarantee the service quality, perfectly realize the different service. –The bandwidth can be adjusted according to the different requirement of different services. –Coincident with the network development. •Evolve to NGN –Smoothly evolve to NGN, which center around IP. –Realize the comprehensive amalgamation between PSTN service and data service. ZTE University
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S300&S200 system introduction ZXA10 S300&S200 networking application POTS PSTN/ISDN ISDN
155M/622M/2.5G
DDN
DDN
Core network IP
O L T
ZXA10 S300
ZXA10 O N S200 U
ADSL
FE/GE FE/GE
Ethernet
ATM155/622 ATM
FE/GE/ATM DSLAM
FE/GE
ZTE University
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VDSL
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S300&S200 system introduction ZXA10 S300&S200 networking application PSTN
IP/ATM
S200
622/155M MSTP Core module
S200
622M/2.5G MSTP
S300
S200 S200
IST S200 IST IST
IST
S200
622M MSTP
S200
S200
S200
IST
IST IST
ZTE University
IST IST
IST
IST
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S300&S200 system introduction ATM/IP
PSTN/DDN
OLT S 300
U300 S 200
Enter prise 1 Videocon ference
NT1 CENTREX
Community subscriber PSTN/VOIP
Router Switch
Enterpri se 2 Videocon ference
CENTREX
ATUR
Base band Modem Data leased line
ATUR
High speed High speed Internet Internet High speed Data leased Internet line The information contained in the file is solely property of ZTE corporation. Any kind of disclosing without permission is prohibited.
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VOD
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