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OSN3500_Huawei OSN3500_What is SDH transmission equipment?
| 2025-11-21|Back

OSN3500OptiX OSN3500 equipment adopts the "unified switching" architecture, realizes unified scheduling of packet service and TDM service, and builds flexible application modes: pure packet mode, pure TDM mode and mixed mode (packet + TDM) can be extended through service board level to realize smooth transition between three modes. The three modes of pure packet mode, pure TDM mode and mixed mode (packet + TDM) can be smoothly converted through service board-level expansion, thus always meeting the development demands of operators' services and networks in the most suitable mode, and facilitating operators to follow the technological development and industrial chain maturity to make step-by-step smooth investment. Based on the "unified switching" architecture, OptiX OSN3500 equipment adopts packet transmission technology to realize efficient statistical multiplexing of data services and effectively reduce the transmission cost of each bit of service; at the same time, it inherits the advantages of SDH and provides Native bearer for TDM services, effectively ensuring the transmission of high-quality voice services. transmission.


Product Characteristics

OptiX OSN3500 subrack is divided into upper and lower layers, the upper layer is mainly for the interface board slot area, with a total of 19 slots, and the lower layer is mainly for the processing board slot area, with a total of 18 slots. The subrack adopts a two-tier subrack structure, which is divided into the interface board area, processing board area, fan area, and alignment area.OSN equipment has the ability to manage and maintain the layered architecture like SDH, which simplifies the operation and maintenance of packet services, and realizes end-to-end packet service configuration, debugging, and fault localization.


Flexible Networking

OptiX OSN 3500 supports different networking applications: pure packet mode application, hybrid networking application (stacked packet mode and TDM mode networking) and pure TDM mode application, realizing the optimal processing of data services and traditional SDH services.

1. Under the support of packet switching technology, it can be used with OptiX OSN 7500 II, OptiX OSN 7500, OptiX OSN 1500, OptiX OSN 500, OptiX OSN 550, OptiX PTN 910, OptiX PTN 950, OptiX PTN 1900, OptiX PTN OptiX PTN 910, OptiX PTN 950, OptiX PTN 1900, OptiX PTN 1900, OptiX PTN 3900, OptiX RTN 900 and other equipment together to form a packet data transport network, to meet the needs of the network IP service bearing.

OSN3500 transmission equipment can be mixed with OptiX OSN 9560, OptiX OSN 9500, OptiX OSN 7500 II, OptiX OSN 7500, OptiX OSN 3500 II, OptiX OSN2500, OptiX OSN1500, OptiX OSN 500, OptiX OSN 550 and other optical transmission equipment. OptiX OSN1500, OptiX OSN 500, OptiX OSN 550 and other optical transmission equipment mixed network, optimize the operator's investment.


Enterprise ultra-long distance network customization

As the demand for smart grid informatization increases, power communication networks show a trend toward service diversification and packetization. Huawei proposes a power communication solution with soft and hard pipe characteristics, namely a unified bearing solution with SDH rigid hard pipes and IP packet flexible soft pipes, to comprehensively meet the business communication needs of the power system.

OSN3500 equipment mainly transmits video, dispatch calls, RTUs, and other services in the power industry to the control center in a layered manner. The access layer is usually OptiX OSN1500 or OptiX OSN500/550 equipment; the core layer is usually OptiX OSN3500/7500 II equipment.

OSN3500 soft and hard pipeline power communication network solutions, taking into account the power of traditional TDM services of high reliability and future packet services of high efficiency bearing, single-fiber 40G smart line card to meet the future development of data services, a variety of customized features is close to the urgent needs of the power industry, such as the built-in PCM features, 2M optical port features, ASON differential protection, ultra-long-distance transmission features etc.


Perfect Protection Functions

Cross protection: The cross and clock unit are provided by the cross clock board. The cross-clock board adopts 1+1 backup, which can protect the cross unit and clock unit at the same time.

Main control protection: The two GSCC single boards, the working board and the protection board, form a 1+1 hot backup mechanism. When the working system control and communication unit is in normal working mode, the protection system control and communication unit is in backup working mode.

Power protection: Through two PIU boards, two -48V/-60V DC power supplies can be fed at the same time. The two power supplies are backups for each other, if any one of them fails, the other one will be put into working condition, which can still ensure the normal operation of the equipment.

SDH service protection: "Configure unprotected chain", "Configure unprotected ring", "Configure ring-multiplexed segment protection subnet", "Configure linear Multiplexing Segment Protection Subnet (1+1)" and "Configuring Linear Multiplexing Segment Protection Subnet (1:1)" are used as examples to illustrate the process of end-to-end configuration of SDH protection subnet.

Ethernet service protection: Link aggregation technology can realize the purpose of increasing link bandwidth by bundling multiple Ethernet interfaces into one logical interface without hardware upgrading, and the backup link mechanism it adopts effectively improves the reliability of the link between devices.


Common Configurations

The OptiX OSN3500 enhanced subrack can be configured with the following network structure: the main SSN6GSCC system control and communication board + SSN1AUX system auxiliary board + SSN1PIUB power supply interface board as the public configuration, SSN1SXCSA super cross-clock board and SSN1GXCSA cross-clock board SSN3PSXCSA bi-planar clock crossover board as an optional configuration. Configuration.OSN3500 device service optional boards are STM-64 optical interface boards, such as: SSN3SL16A, SSN1SLD16, SSN4SLQ16, SSN1SF16, SLQ1, etc.; STM-64 optical interface boards, such as SSN4SL64, SSN4SLD64, SSN1SF64, etc.; STM-4 optical interface boards, such as: SSN1SL4, SSN1SLQA, SSN1SLD4, etc.; STM-1 optical interface boards, such as: SSN1SLT1, SSN1SLO1, etc. Other PDH boards, Ethernet switching boards, EOS Ethernet pass-through boards are SSN1EMS411, SSN1EGM217, SSN1EGS412, SSN3EGS216, SSN2EGT211, etc. In order to realize the long-distance transmission, it can also be configured with other auxiliary function boards, such as the optical power amplifier SSN1BA2 and the pre-power amplifier SSN1BPA. For long distance transmission, other auxiliary function boards such as optical power amplifier SSN1BA2 and preamplifier SSN1BPA can be configured.


Physical Characteristics

OSN3500 power supply can be connected to -48V DC; Installation: ETSI 300mm deep cabinet, ETSI 600mm deep cabinet;

497mm (W) x 295mm (D) x 722mm (H) 23kg (net weight of subrack, excluding veneer and fan)


The technical parameters and product characteristics of this product are provided by Shenzhen Optical Transmission Network Technology Company Limited (www.opticaltrans.com), reproduced with permission. Huawei SDH Optical Transmission Equipment,SDH Transmission Equipment Sales Tel: 13430988088 Welcome to call us!


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Email:info@opticaltrans.com
Address:Cuiguang 1st Distriuct Buiding 8th, Shenzhen, Guangdong Province
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