The rapid development of telecommunication and broadcast technologies promote the traditional cable television (CATV) network to evolve into the next-
generation broadcast network. In addition, users are expecting more from the CATV network including its quality and support for services. Therefore, the CATV
network must be digitalized and restructured in both downstream and upstream directions to meet the growing service demands
and three-network convergence (telephony, television, and Internet). Against this backdrop, Huawei launches the SmartAX
MA5633 distributed converged cable access platform (D-CCAP) head end device (MA5633 for short).
The MA5633 is used in D-CCAP scenarios. The MA5633 addresses bandwidth limitations for broadband and television services, hereby meeting triple-play network requirements.
The shell of the MA5633 is made of die casting aluminum al oy, which enables the bottom layer of the shell to use cooling grooves to implement passive cooling.
Product Highlights
High Bandwidth and Low TCO
ü Complying with the European standard, supports a maximum downstream rate of 800 Mbit/s in QAM 256 mode and a maximum upstream rate of 120 Mbit/s in QAM 64 mode.
ü Complying with the U.S. standard, supports a maximum downstream rate of 640 Mbit/s in QAM 256 mode and a maximum upstream rate of 120 Mbit/s in QAM 64 mode.
ü Relieves the need of analog devices. Compared with traditional CMTSs, the MA5633 reduces:
u Installation space by 70%.
u Power consumption by 60%.
u Cable connections between analog devices.
High Integration
ü Built-in optical receiver or transceiver
u Significantly simplifies installation and cable connections because only one chassis needs to be installed.
u Reduces installation space, resolving issues caused by space limitations on installing a ground-based network box.
u Supports remote information configuration, query, and alarm generation for the optical receiver or transceiver. The configuration includes AGC, attenuation, and gain mode settings.
ü Built-in wavelength division multiplexing (WDM)
The built-in WDM applies in newly deployed networks where feeder fibers are insufficient, which reduces optical fiber investments and fiber routing.
ü Built-in edge quadrature amplitude modulation (EQAM)
u The built-in EQAM applies in newly deployed networks or the networks requiring reconstruction in both downstream and upstream directions. On these networks, no external EQAM needs to be purchased or instal ed in a hub equipment room, which reduces investments and maintenance costs and simplifies hub equipment room deployment.
u The built-in EQAM uses idle downstream DOCSIS channels as EQAM channels to transmit video data, thereby improving channel usages.
Inner Modular Design
The power module, frequency combiner, built-in modules (optical receiver, optical transceiver, and WDM), and CMC module can be replaced onsite, which:
ü Simplifies maintenance, improves troubleshooting efficiency, and shortens service interruption duration.
ü Reduces spare parts investments, implements refined spare parts management (storing the number of spare parts based on their failure rates), and prolongs device lifespan.
Comprehensive QoS Measures
Supports traffic burst, which transiently improves user bandwidths and enhances user experience without changing QoS parameter settings.
ü Supports QoS configuration adjustments, which prevents a few number of users from using the majority of bandwidth resources, thereby improving user experience. Compared with the original "bandwidth+monthly package" commercial mode, the new commercial mode used by the MA5633 supports traffic and bandwidth limitation, which facilitates carriers' traffic management.
ü Supports hierarchical quality of service (HQoS) for bandwidth control and management. Level-1 QoS controls bandwidths for user services and level-2 QoS controls bandwidths for users.
ü Monitors user traffic to ensure that the user traffic meets service level agreement (SLA) requirements.
Integrated Solution
ü Supports heterogeneous access and shared platform for provisioning cable and fiber to the home (FTTH) services, which simplifies coordinate network construction.
ü Provides an integrated solution for video and data services using a built-in EQAM, which simplifies network deployment.
Complete Maintenance and Management
ü Supports centralized management. In this mode, the MA5633 is plug-and-play and regarded as a service board of the OLT. The functions of the combined OLT and MA5633 are the same as those of centralized CCAPs. Al maintenance operations are performed on the OLT. The OLT supports remote configuration, upgrades, and O&M for the MA5633. This implements simple and efficient maintenance and management.
ü Supports Internet Protocol Detail Record (IPDR), an efficient data statistics and reporting mechanism used for accounting, fault locating, and network running status monitoring purposes to meet routine O&M requirements.
ü Supports upstream spectrum scanning. Upstream cable channels are prone to be interfered by external noises, which affect CMs and user services. The upstream spectrum scanning function enables the MA5633 to obtain noise distribution on upstream channels so that the MA5633 can configure services in the frequency bands with weakest noises, minimizing noise interference on services.
u The U2000 supports upstream spectrum scanning and collects noises on upstream channels within the spectrum range of 0–81.92 MHz. The scanning frequency is once per second.
u The U2000 supports 4096 sample points, with an interval of 20 kHz between sample points.
ü Controls RF port status. The MA5633 supports two-status and three-status configurations. The two statuses are enable and disable and the three statuses include attenuation more compared with the two statuses. The two statuses work with the upstream spectrum scanning function provided by the U2000. In this way, the MA5633 can rapidly identify an RF line where a noise source locates, thereby improving troubleshooting efficiency.
