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The following post is the seconds part of Auxiliary Devices of the FTTx Solution
FTTx SYSTEM OVERVIEW
Introduction to Auxiliary Devices of the FTTx Solution, Part II
MxU
Typical MxU Models
Introduction to The MA5818
· The SmartAXMA5818 multi-service access device (MA5818 for short) is a 2 U high and 19 inch-wide product that supports flexible card plug-in. It has four service slots and can be flexibly configured.
· The MA5818 can be used in FTTC/FTTB, mini DSLAM, or mini MSAN construction scenarios. It can be installed in corridors or cabinets in indoor and outdoor application scenarios.
· The MA5818 provides UNI interfaces such as ADSL2+, VDSL2, SHDSL, POTS, FE, P2P, ISDN, and Combo, and provides dual GPON/EPON/GE auto-sensing NNI interfaces.
· The MA5818 provides the vectoring feature to support VDSL2 acceleration. Subscribers can access the network at a higher speed and enjoy richer services and better subscriber experience through VDSL2 lines.
· IPv6: Compared with IPv4, IPv6 has a simplified packet header format, sufficient address space, hierarchical address structure, flexible extension header, and enhanced neighbor discovery mechanism.
· Combo card design: This feature helps carriers reduce construction costs, save deployment space, reduce cable connection time and MDF occupation, and reduce maintenance costs.
· Comprehensive QoS capabilities: Supports bidirectional rate limiting based on subscriber ports and traffic shaping for queue groups at the port level.
· Supports WRED profiles and the binding of queues and WRED profiles.
· Supports priority marking based on the access control list (ACL).
· Upstream and downstream services can be mapped to different priority queues based on priority tags and scheduled accordingly.
· Supports 3 scheduling modes: priority queuing (PQ), weighted round robin (WRR), and PQ+WRR.
· Excellent maintenance and management functions:lSupports service pre-deployment and plug-and-play.
· Supports remote fault locating, troubleshooting, and batch upgrade.
Introduction to the MA5821/MA5822
· The SmartAXMA5821/MA5822 (MA5821/MA5822 for short) is a remote ONU launched by Huawei.
· The MA5821/MA5822 is mainly used in the FTTB or FTTC construction scenario. The MA5821 can also be used in video surveillance scenarios.
· The MA5821/MA5822 provides 1 SFP upstream optical port which supports 10G GPON, 10G EPON, GPON, or EPON upstream transmission. Users can select the upstream mode as required. The product supports 8/16/24 FE electrical ports or 24 GE electrical ports in the downstream direction. The MA5822 also supports POTS access.
Specifications of the MA5821/MA5822
· The MA5821/MA5822 is classified into products with 8/16/24 FE or 24 GE electrical interfaces based on the number of subscribers that can be connected. The MA5822 supports POTS access.
· The MA5821/MA5822 provides 1 SFP upstream optical port which supports 10G GPON, 10G EPON, GPON, or EPON upstream transmission.
· The MA5822 has the voice function, but the MA5821 does not support voice services.
Introduction to the MA5821
· There are 3 types of EA5821: 8GE, 24GE, 24GE+PoE.
· Supports 10G GPON upstream transmission.
Intelligent PoE power supply: The EA5821 provides the PoE function which simplifies power supply. When transmitting data through Ethernet cables, the EA5821 can provide power supply for terminals such as indoor APs, eliminating power cable routing requirements.
· Abundant service types:
§ The EA5821 can implement multiple services such as data and multicast services with solutions. It supports high-performance multicast service.
§ Supports IPv6.
§ Provides comprehensive QoS capabilities.
· Excellent maintenance and management functions:
§ Supports various maintenance and management functions, such as on-site software commissioning, remote acceptance, remote upgrade and patching, and remote fault locating. Supports one-stop offline deployment and plug-and-play. Configurations can be automatically obtained from the NMS and take effect automatically. When the EA5821 goes online, it sends a report message to NMS automatically.
§ Remote batch upgrade: Supports automatic batch upgrade and version and data rollback in case of an upgrade failure, thereby ensuring upgrade security.
§ Zero touch routine maintenance: Supports accurate fault locating and remote troubleshooting. Supports comprehensive information collection, device self-check, and diagnosis.
§ Network performance monitoring: Supports network optimization and subscriber QoS monitoring.
MA5616 Specifications
· The MA5616 is a 2U high and 19-inch wide product that supports flexible card plug-in. it supports ultra-high bandwidth access and flexible capacity expansion.
· The MA5616 can be configured with different service boards to provide ADSL2+, VDSL2, SHDSL, POTS, and ISDN subscriber interfaces, meeting requirements of various FTTB and FTTC private line access services. In addition, the MA5616 can be used as a mini DSLAM or MSAN to provide traditional voice, data, and video services.
§ In the MA5616 subrack, slot 0 is configured with a control board, slots 1–4 are configured with service boards, and slot 5 is configured with a power board.
§ A P2P Ethernet access board EIUD can be configured only in slot 1 or slot 2.
· The MA5616 has the following features:
§ Supports 3 types (CCUB/CCUC/CCUE) of control boards.
§ The CCUB/CCUE supports the xDSL, ISDN, POTS, ADSL2+, and POTS combo service boards. In addition to the aforesaid service boards, the CCUC also supports FE and GE service boards.
§ Supports xPONand GE upstream ports when configured with different daughter boards. The CCUE control board can be configured with an XP1A daughter board to provide 10G GPON upstream ports.
§ Can be installed without onsite software commissioning, accelerating the deployment.
§ Supports remote fault locating, commissioning, information collection, and fault recovery.
§ Supports intelligent fan speed adjustment which effectively reduces power consumption during off-peak hours. The power consumption of a single device can be reduced by a maximum of 6 w.
§ The MA5616 supports AC and DC input. The AC input mode supports battery backup.
MA5616 Features—Combo Board
· The MA5616 innovatively supports combo board design, which provides high-density user access, saves cables connection time, reduces MDF occupation, and reduces maintenance costs.
Introduction to the MA5620/MA5626
· The NA5620/MA5626 remote optical access unit is mainly used in FTTB construction scenarios.
· The MA5620/MA5626 es a 1 U case-shaped device that supports multiple types of devices.
· The MA5620/MA5626 is a remote ONU launched by Huawei to meet customers' requirements for the multi dwelling unit (MDU) in an FTTB network. It works with the OLT to provide high-speed and high-quality data, voice, and video services for FTTB access.
· The MA5620/MA5626 has the following features:
§ The MA5620/MA5626 supports EPON, GPON, and GE upstream transmission.
§ The MA5620 supports VoIP-based plain old telephone service (POTS) access and Ethernet-based LAN access.
§ The MA5626 supports Ethernet-based LAN access.
§ The MA5620/MA5626 provides 3 specifications with 8, 16, and 24 ports. The AC power supply mode is adopted.
§ The MA5620 supports basic services such as voice service, fax service, and modem service, as well as value-added services such as 3-party conversation, call waiting, call transfer, calling line identification presentation (CLIP), and calling number restriction.
§ The MA5620/MA5626 supports plug-and-play and remote management without onsite configuration. It provides excellent management, maintenance, and monitoring functions, facilitating routine operation management and fault diagnosis.
MA5620/MA5626 Product Specification
· The MA5620/MA5626 provides various specifications to adapt to different user densities.
MA5626 Product Features—PoE Power Supply
· Power over Ethernet (PoE): A technology that enables MDU devices to transmit data signals for terminal devices as well as DC power on existing Ethernet cables.
· With the rapid development of new services such as WLAN, VoIP, and network video surveillance, wireless access points (APs), IP phones, and network cameras are widely used. Many such terminals need to be installed in places where the AC power supply is difficult to acquire. The PoE power supply solution solves this problem and enables terminal devices to obtain power when accessing the network.
· PoE has the following features:
§ In PoE mode, an Ethernet cable has a voltage only when it is connected to a device that requires power supply. If connected devices do not require power supply, there is no voltage on the Ethernet cable, eliminating the risk of electricity leakage.
§ Subscribers can safely use the existing devices and PoE devices on the network.
· Forward PoE power supply
§ As shown in the figure on the left, the PoE power supply system of the MxU has the following typical applications: connecting to the IP phone, wireless APs in a WLAN, and network cameras in the video surveillance scenario.
§ The MA5626 PoE device functions as a power sourcing equipment (PSE) to connect to an AC 220 V power supply. Due to the difficulty in centralized power supply, some terminals are connected to the MA5626 through Ethernet ports to transmit data and obtain PoE power supply.
· Reverse PoE power supply
As shown in the figure on the right, the MA5626 reverse PoE device functions as a powered device (PD) and connects to a PSE power adapter in a subscriber's home through an Ethernet port to transmit data and obtain PoE power.
Introduction to the MA5612
· The MA5612 is a multi-service ONU launched by HUAWEI. It supports various services, such as data, multicast and voice services.
· The MA5612 supports GE/FE, POTS, and E1/T1 access modes and RF interfaces. It is mainly used in FTTB construction scenarios as well as certain private line access scenarios.
Specifications of the MA5612
· The MA5612 is a 1 U case-shaped device with some mountable service boards. It supports 2 service boards and provides various specifications. The main difference lies in the power supply mode used and upstream ports.
The MA5612 has the following features:
§ The MA5612 supports card plugging. It provides two service card slots with natural heat dissipation and no noise.
§ The MA5612 provides GPON, EPON, and GE interfaces on the network side to meet different modes and bandwidth requirements. The upstream ports support triple mode autonegotiation.
§ The MA5612 supports FE, POTS, and radio frequency (RF) interfaces, which can be used for home subscriber access.
§ The MA5612 supports GE, FE, and E1 interfaces, which can be used for enterprise user access and mobile bearing.
§ The MA5612 supports AC and DC power supplies.
§ The MA5612 features an energy-saving backup technology: The POTS short loop is used to reduce the power consumption by 5%. Supports 12 V AC power backup, reducing power backup cost by more than 50%
Typical Networking of the MA5612
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