user access modes and effectively ensures the smooth evolution from copper access to optical
access.
Optical Access
The MA5680T/MA5683T supports 10G GPON access, GPON access and P2P access, which
effectively meets requirements of various FTTx access applications.
Supports a split ratio of 1:128.
Support small form-factor pluggable (SFP) optical module of Class B+ or Class C+ and
XFP optical module, which can be used in different scenarios.
High-density 48 single-fiber bi-directional or 24 two-fiber bi-directional GE/FE P2P optical
access is supported.
Supports the high-performance and large-capacity control board SCUH. In active/standby
mode, SCUH supports 20 Gbit/s switching bandwidth for each slot. In load sharing mode,
SCUH supports 40 Gbit/s switching bandwidth for each slot. And provides 960G switching
capacity (doubles performance capacity), improving access user bandwidth.
Copper Access
The MA5680T/MA5683T supports multiple xDSL access and POTS access modes and makes
full use of existing copper cable resources to provide users with rich and flexible network
services. The retransmission and INM functions solve the line quality deterioration problem
caused by line bit errors and line noise, which ensures the line access quality.
The xDSL ports works with the ADSL terminal unit-remote end (ATU-R) or the VDSL
terminal unit-remote end (VTU-R), which can provides the highest-density 64 channels of
xDSL access and 48 channels of POTS access.
Far-end crosstalk (FEXT) is one of key factors affecting the performance and stability of
the VDSL2 system. The MA5603T supports the vectoring feature. Vectoring uses vectors
to solve FEXT of VDSL2 lines so as to improve bandwidth and performance of multi-pair
VDSL2 lines. It effectively decreases crosstalk for short-distance lines (shorter than 1 km).
The rate of a single VDSL line can be increased about 50%-90% within 800 m. Provides
higher bandwidth and more types of services over existing VDSL2 lines after the rate for
a single VDSL2 user is increased.
Full Service Access
This section describes the data, multicast, voice, and base station access services of the
MA5680T/MA5683T and the QoS solution implemented by the MA5680T/MA5683T.
Supports the High-Performance Multicast Service. The device employs the multicast
technology to provide IP video services, including live TV and QVoD, for carriers. By
introducing the multicast technology, the network device can manage, control, and forward
IP video services and thus meets carriers' requirements for provisioning IP video service.
The MA5680T/MA5683T has completed its interoperability test with all mainstream NGN/
IMSs.
– Connection to the NGN/IMS network through SIP or H.248, implementing the VoIP
service (including the voice, fax, and modem services).
– The MA5680T/MA5683T supports reconstruction of traditional voice devices such as
the N*64K private line device and ISDN PRI PBX, implementing the ALL IP
architecture.
Implements base station access solution by using MA5680T/MA5683T (OLT)+MDU. And
the MA5680T/MA5683T supports clock synchronization in the base station access
scenario.
The MPLS PWE3 provides the E2E reliability and quality assurance for the service.
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