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Description

OSN500 overview

This is new-generation optical transmission equipment developed by Huawei. It adopts the TDM + packet (MPLS/MPLS-TP-based) dual-domain architecture and supports a variety of service access modes. It mainly applies to the access layer of metropolitan area networks (MANs) and local transmission networks to access services over VIP private lines and from wireless base stations.

OSN 500 Highlights

This section describes the equipment features in terms of architecture and technology.

 

High Availability, Low Power Consumption, and Compact Structure
The OptiX OSN 500 is a device used at the access layer, which features high availability, low power consumption, and a compact structure.

The OptiX OSN 500 supports:

• Network-level protection such as tunnel automatic protection switching (APS), PW APS, MPLS-TP Ring Protection Switching (MRPS) (MPLS-TP is short for multiprotocol label switching transport profile), Multiple Spanning Tree Protocol (MSTP), Ethernet ring protection switching (ERPS), link aggregation group (LAG), Multi-Link Point-to-Point Protocol (ML-PPP), linear multiplex section protection (LMSP), and link-state pass through (LPT), to improve equipment reliability
• Maximum power consumption of 100 W, and a typical power consumption of only 44.7 W
• Dimensions (H x W x D) of 44 mm x 442 mm x 220 mm, and installation in a cabinet (including ETSI and 19-inch cabinets), on a wall or desk, or in an open rack

Pure Packet Architecture and Multi-service Transmission

The OptiX OSN 500 supports service bearing in the PTN domain. This solution evolves based on the service changes that take place due to radio mobile network evolution. Therefore, this solution can meet the transmission requirements of not only 2G and 3G networks but also the future LTE and 4G networks. Specifically, the OptiX OSN 500 can process and transport ATM, Ethernet, MPLS, and MPLS-TP services.

 

End-to-End Service Configuration, One-Click Commissioning, and One-Click Fault Locating (TP-Assist)
Compared with legacy TDM networks, PTN networks have the following characteristics in terms of O&M:

• Lack of as many overhead bytes that indicate physical states of networks as TDM networks. When a fault occurs on a PTN network, no visual and fast indicator is available to locate the fault.
• Networking diversity and complication, which require powerful O&M capabilities

 

To address these issues, the equipment uses the TP-Assist to provide more O&M means and simplify O&M operations for PTN networks during installation, commissioning, service configuration, fault locating, and routine maintenance. With the TP-Assist, PTN networks have SDH-like O&M capabilities, which reduce the technical requirements for O&M personnel and improve O&M efficiency.

 

Hierarchical OAM
The OptiX OSN equipment supports the hierarchical OAM functions and has SDH-like O&M capabilities. It can quickly detect and locate faults at each layer.

The hierarchical OAM functions include ETH OAM, MPLS tunnel/PW OAM, and MPLS-TP tunnel/PW OAM. Figure 1 illustrates the application of hierarchical OAM

 

Types of Supported Services

Different boards providing a wide variety of service ports can be deployed on the OptiX OSN 500.

Service Category	Service Type	Service Rate	Board	Reference Standard
Packet service	GE service (optical port)	1000 Mbit/s	CSHD/EM6F	IEEE 802.3z
	GE service (electrical port)	1000 Mbit/s	CSHD/EM6T/EM6F
	FE service (optical port)	100 Mbit/s	CSHD/EF8F/EM6F	IEEE 802.3u
	FE service (electrical port)	10/100 Mbit/s	CSHD/EF8F/EM6T/EM6F
	ATM/IMA/E1 CES service	2.048 Mbit/s	CSHD/MD1	ITU-T G.703 ITU-T G.823
	Channelized STM-1 CES service	155.52 Mbit/s	CQ1	ITU-T G.957 ITU-T G.703

Item	OSN500
Cross-connect Capacity	Higher-order full cross-connections of 21.25 Gbit/Lower-order full cross-connections of 5 Gbit/s.
Service Slots	3 slots for processing boards
Supported interfaces	SDH interfaces	STM-1 optical interface: S-1.1, L-1.1 and L-1.2 STM-4 optical interface: S-4.1, L-4.1 and L-4.2
	PDH interfaces	75-ohm/120-ohm E1 electrical interface 100-ohm T1 electrical interface 75-ohm E3/T3 electrical interface
	Ethernet interfaces	10/100BASE-T(X), 1000BASE-T 100BASE-BX/FX/LX/VX/ZX, 1000BASE-SX/LX/VX/ZX
Maximum Number of Services Supported by a Single Subrack	Service Interface	Max	Service Interface	Max
	STM-1	4	E1/T1	84
	E3/T3	6	GE	8
	FE	16
Power Supply	DC: -48V DC or -60V DC AC: 220V/110V AC
Clock Synchronization	120-ohm external clock source Line clock source Tributary clock source
Auxiliary Interface	F2 transparent data interface Local modem interface/Remote NM interface
Dimensions(mm)	442 (W) x 220 (D) x 44 (H)
Weight(kg)	10

 

Additional information

Weight	8.5000 kg
Dimensions	60.0000 × 36.0000 × 16.5000 cm