ZXWM M920 equipment is a new generation of large-capacity and ultra-long-distance intelligent backbone OTN products introduced by ZTE Corporation. The equipment adopts advanced transmission technology and high integration technology. It is fully IP-based, supports OTN standard, supports GMPLS / WASON control plane load, used in international, national, provincial, provincial trunk, local switching network and a variety of private network construction.

1. Large transmission capacity
Support 80 × 100G large capacity transmission, that is, a single fiber transmission capacity of up to 8Tb / s, respectively, 10G and 40G DWDM system capacity of 10 times and 2.5 times, can fully meet the growing needs of the operator's bandwidth.
At the same time support 80/96 × 10G / 40G transmission, support from 40 to 80 wave, 48 wave to 96 wave smooth upgrade.

2. Excellent 40G / 100G transmission performance
ZXWM M920 100G system uses coherent detection of PM-QPSK coding technology to support SD-FEC, B2B OSNR tolerance index excellent, using the industry's advanced DSP processing technology, dispersion tolerance ± 70,000 ps / nm, PMD tolerance 60ps. Support more than 5,000 km of non-electric relay transmission, saving investment, greatly facilitate the operation and maintenance.
The ZXWM M920 supports the PM-QPSK coding scheme for coherent detection of 40G systems while providing P-DPSK and RZ-DQPSK coding schemes, with coherent detection of the PM-QPSK coding solution ± 50,000 ps / nm, PMD tolerance 60ps, support ultra-long distance without dispersion and PMD compensation transmission.

3. Flexible and comprehensive business access capabilities
The customer side supports 100M-100G any service access: STM-N, FE / GE / 10GE / 40GE / 100GE, OTU1 / 2/3/4, DVB, ESCON, FC.
Common service access board, to meet the needs of operators mixed transmission of a variety of services. In this case,

4. Supports optical cross-connect and WASON intelligent control plane
Optical layer support 2-9 dimensional ROADM, realize the wavelength end to end automatic configuration;
The WASON control plane based on the GMPLS protocol can realize intelligent control of network resources and topology, shorten service deployment time, provide multiple recovery paths for critical services, enhance the survivability of services, and improve the utilization rate of network resources. In this case,

5. Carrier-class reliable protection
Based on ZTE's many years of engineering practice and strong R & D capability in the field of optical network protection, it supports multiple protection modes such as fiber grade, wavelength level and L2 level.
1) Fiber grade: Line 1 + 1 protection, optical multiplex section 1 + 1 protection;
2) Optical channel level: optical channel 1 + 1 protection;
3) L2 layer: ESR protection.

6. Full support for time synchronization
Full support for in-band / out-of-band transmission 1588V2, support synchronous Ethernet transmission, strong support for 3G and LTE deployment.

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