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ZTE ZXMP S385

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Overview

The upswing of services poses a gigantic challenge for network bandwidth. On request by transport network evolution, multi-service transport equipment featuring large capacity, flexible dispatch, high reliability, elastic bandwidth, and upgradeability are needed to handle service delivery in the core network. Considering service diversity and variation of network architecture, inheriting ZTE’s technology patents and experience in the field of SDH, and implanting new technological contents in SDH equipment, ZTE launches ZXMP S385, an intelligent STM-16/STM-64 multi-service transport platform designed advanced technology, allowing customers to build the efficient and competitive network.

 

Highlights

Targeting network backbone layer or large-capacity convergence layer applications, ZXMP S385 can be served as medium-capacity DXC, large-capacity ADM, while enabling Ethernet switch and ATM switch functionalities via MSTP functions. It can be flexibly configured as REG/TM/ADM/MADM when serving as ADM. It has the ability to smoothly upgrade from STM-16 to STM-64.

Large-capacity and flexible service dispatch capability

The equipment has the ability to process multiple lines of ECCs, fully satisfying the requirements for complex networking, supporting complex network topologies, such as linear, ring, hinge, a ring with chain, tangent ring, and crossing ring, at levels of STM-1/STM-4/STM-16/STM-64.

Strong multi-service access ability

ZXMPS 385 offers versatile service interfaces: STM-64/STM-16/STM-4/STM-1 optical interfaces; STM-1, E3/T3, E1/T1 (support framing processing) electrical interfaces; POS interface, ATM interface, FE/GE Ethernet interfaces, and SAN interface. Multiple bearer modes like EOS, embedded RPR, and embedded MPLS are available to deliver Ethernet private line (EPL), Ethernet virtual private line (EVPL), Ethernet private LAN (EPLAN), and Ethernet virtual private LAN (EVPLAN) services, and addressing requirements for multiple technologies in different networking environments.

Highly reliable and complete equipment protection

ZXMP S385 provides perfect equipment-level protection: with redundant design in hardware, dual-bus architecture is adopted in the service bus, overhead bus, and clock bus, resulting in a vastly improved system reliability and stability. Two cross-connect clock boards are employed to perform 1+1 protection for cross-connect clock.

1:N hardware service protection for PDH service board: 1:N (N<=9) protection for E1/T1 service board, 1:N

(N≤4) protection for E3/T3, STM-1, and FE electrical interfaces.

Multiple protection modes include cabinet external power supply protection, board power supply protection, and sub-rack power access protection.

Perfect and intelligent network protection

ZXMP S385 supports perfect network-level protection: enabling ITU-T-recommended networking characteristics, protection modes containing: 1+1 link multiplex section protection, link 1:N protection (N=14), unidirectional path protection ring, 2-fiber bidirectional multiplex section protection ring, 4-fiber bidirectional multiplex section protection ring, dual node interconnection protection (DNI), subnetwork connection protection (SNCP), and logic subnetwork protection (LSNP). ZXMP S385 features robust intelligence, supports automatic discovery of network topology and resource, automatic and rapid end-to-end service provision, and resistance to multi-node failure in the network; it also supports multi-priority service protection and restoration policy.

Outstanding scalability

ZXMP S385 can be smoothly upgraded to a 10G system from a 2.5G system. It can perform dispatch and add/drop of vast lower-order services during dispatching high-speed services. Designed with cutting-edge GFP, LCAS technologies, the system supports data/voice-oriented hybrid transmission, ensuring steady extending capabilities to dispatch and process data services.

Sound design, easing operation, and maintenance

ZXMP S385 supports mixed insertion of boards, easing service configuration, and network planning & optimization. System operation adopts front-facing interfaces, easier for maintenance. ZXMP S385 employs pluggable optical modules (SFP module, LC connector) and supports ALS functions; various optical boards and boards share spare parts, driving down cost. It supports online optical power detection for all-optical interfaces, facilitating the rapid location of line failure, and boosting maintenance efficiency. Highly integrated equipment results in lowered expenditure for space; low power consumption reduces electricity expenses.

Customer Benefits

Robust intelligence, enhanced network survivability, boosted O&M efficiency

The combination of protection and restoration greatly improves network survivability; plug and play network node allows operators to implement network architecture optimization and operation & maintenance with ease; supports differentiated classes of services, satisfying customers’ demands; supports traffic engineering, balances network loads, and improves resource utilization.

Strong networking dispatch functions to boost network profitability and cut CAPEX

Flexible multi-service access functions, highly integrated service interface boards are available to enable access to vast PDH, SDH, and data services, accommodating the requirement for large-capacity service access.

Excellent scalability to protect investment and drive down OPEX

With smooth evolution capability and scalability, ZXMP S385 allows customers to achieve the effect of a newly-built backbone layer only by adding or replacing cards, significantly reducing the secondary construction cost. Support for vast E1 services enables legacy dispatch equipment to extend to integrated equipment capable of dropping services. Features adaptable to metro services maximize customers’ return on investment.

Powerful RPR function and support for IP-based network evolution to protect the investment

It offers robust processing capability for data services, supports dual-ring operation, supports unicast, multicast, and broadcast services, implements bandwidth statistic multiplexing to increase bandwidth utilization, features rapid service provisioning, service priority access control, and total network fairness mechanism, and guarantee high Qos. It breaks RPR single ring restriction, enabling more flexible networking, avoiding service dropping and forwarding, and reducing failure points.

Redoubled embedded WDM functions to save optical fiber resources

Support wavelength-level add/drop multiplexing of optical signals.

Flexible design to ease network planning and optimization

Support mixed insertion of boards, leaving it easy for service configuration, maintenance, and network planning and optimization.

Networking Modes

Point to point network

The packet rates of point-to-point networking include STM-1, STM-4, STM-16, and STM-64. Dual TM configuration devices can form 1 + 1 protection or no protection, single TM configuration device without protection.

• When configured as a 1 + 1 protection mode, the two LPUs provide mutual protection to improve the reliability of service delivery. The disadvantage is that the service access capability is reduced. When configured as unprotected, service access can be improved, but the reliability of service delivery is reduced. Point to point network for the large-capacity inter-office relay, expansion between the Bureaus.

Chain network

The packet rate of ZXMP S385 in chain networking includes STM-1, STM-4, STM-16, and STM-64. The chain network consists of TM devices and ADM devices. ZXMP S385 formed a chain network.

For four-fiber chain

It can be configured as channel protection and multiplex section protection. Dual TM devices and ADM devices can form a 1+1 protection chain, single TM devices and ADM devices can form an unprotected chain network.

• When configured as a 1+1 protection mode, the two LPUs provide protection for each other to improve the reliability of service delivery. The disadvantage is that service access can be degraded.

• When configured as unprotected mode, the service access capability can be improved. The disadvantage is that the service delivery reliability is reduced.

The chain network is suitable for long-distance trunk network, the traffic volume chain communication network, as well as the chain side chain network.

Ring network

The loop interface of the ring network has a self-sealing feature. The branch services between network elements can be transmitted end-to-end through two directions (eastward and westward). This network topology has strong survivability and self-healing capability. In the high-capacity fiber-optic network. The self-healing ring structure can be divided into two categories, namely, channel switching ring and multiplexing section switching ring. From the perspective of the abstract functional structure, the channel switching ring and the multiplexing segment switching ring belong to sub-network connection protection and path protection respectively. The ring network usually formed by ZXMP S385 includes a two-fiber / four-fiber bidirectional MSP ring and two-fiber unidirectional channel switching ring of STM-4 / STM-16 / STM-64.

Double node interconnection network (DNI)

ZXMP S385 constitute a DNI (Dual Node Interconnection, two-node interconnect)

Two-node interconnection (DNI) networking is actually the intersection of two ring networks, which can provide inter-ring service protection. The two rings can be configured with the same type of protection. For example, the channel ring intersects the channel ring and can also be configured for different protection types. For example, the channel ring intersects the ring of the multiplex section. The rate of ZXMP S385 DNI networking is determined by the ring rate, which is commonly used at the STM-16, STM-64 rate levels. DNI network provides a variety of path protection and important node protection, usually applied to the local network transmission trunk network.

Mixed network

ZXMP S385 can implement hybrid networking with other SDH-based multi-service node devices (such as ZXONE 5800, ZXMP S330, ZXMP S325, ZXMP S200, and ZXMP S150) of ZTE, and a hybrid networking diagram of ZXMP S385 and ZXMP S330 devices.

The hybrid networking can implement services and public service interworking. The two ring networks can be configured with the same protection mode. For example, the channel ring intersects with the channel ring and can also be configured with different protection types, such as the intersection of the channel ring and the multiplex ring. On the networks where SDH NEs such as ZXONE 5800, ZXMP S330, ZXMP S325, ZXMP S200, and ZXMP S150 coexist with WDM NEs such as ZXWM M900, ZXMP M800, and ZXMP M600, set the monitoring network port Qx The Qx port of the port and the WDM network element are interconnected through the crossover network cable to realize the remote monitoring of the WDM network element.