Cisco Systems ONS 15200 manual Modularity and Ancillary Equipment, ONS 15252 MCU

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C H A P T E R 3

Product Hardware

This chapter describes the Cisco ONS 15200 mechanical components. It also provides electrical, electromagnetic, and safety information about the ONS 15200.

3.1 Modularity and Ancillary Equipment

Equipment in the ONS 15200 system is modular in design. Each system function is carried out by modules located in either an ONS 15252 MCU or an ONS 15201 SCU. Sites in the ONS 15200 system consist of either an ONS 15252 MCU, an ONS 15201 SCU, or a combination of the two. ONS 15200 site configurations may also include a power distribution panel (PDP).

3.1.1 ONS 15252 MCU

The ONS 15252 MCU communicates with the other nodes in the ONS 15200 system on one or several channels. Each channel occupies a wavelength, and some ONS 15200 system configurations reuse a wavelength. As shown in Figure 3-1, several channels of information, each occupying a wavelength, enter the node from the DWDM layer. Each channel can enter the ONS 15252 MCU from the A side, the B side, or the A side and B side.

The ONS 15252 MCU communicates with the other nodes in the ONS 15200 system on one or more wavelengths. Information originates at the ONS 15252 MCU Client Layer Interface Port (CLIP) module. For optically-protected channels, the Network Adaptation module (NAM) splits the information and transmits it in opposite directions through two Hub Filter Modules (HFMs) and two Line Modules (LMs) at a specific wavelength.

For unprotected channels, the NAM transmits the information to either an A-side HFM or a B-side HFM and then through the associated LM. Information carried on a wavelength intended for another ONS 15200 site passes through the ONS 15252 MCU without interference except for the insertion loss of the ONS 15252 MCU, if a BM or a CMX is used. If the ONS 15252 MCU is equipped with Termination modules (TMs) instead of a BM, the TMs block any wavelength or channel not dropped to the

ONS 15252 MCU.

Cisco ONS 15200 Product Description

	78-13766-01	3-1

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Contents Corporate Headquarters Cisco ONS 15200 Product DescriptionCisco ONS 15200 Product Description N T E N T S Alarms Acronyms A-1 Contents Cisco ONS 15200 Product Description 78-13766-01 G U R E S Viii NCB Indicators Tables Cisco ONS 15200 Product Description 78-13766-01 Related Documentation Manual StructureRelevant Standards Obtaining DocumentationWorld Wide Web Obtaining Technical Assistance Optical Networking Product Documentation CD-ROMOrdering Documentation Documentation FeedbackTechnical Assistance Center Cisco.comCisco TAC Escalation Center Xvi Optical System Description Optical ChannelsUnprotected Channels Unprotected channels in an ONS 15200 system Protected ChannelsOptically-fiber protected channels in an ONS 15200 system Software Configurable ProtectionPage Bus Configuration ONS 15200 Network ConfigurationsLogical Connections Ring ConfigurationMultichannel Point-to-Point Configuration Dual-Home ConfigurationRing Configuration with Hubbed and Meshed Traffic Ring configuration with hubbed and meshed traffic Full-Mesh ConfigurationNetwork Protection Four ONS 15252 MCUs in a full-mesh configurationONS 15252 MCU Modularity and Ancillary EquipmentClip ONS 15201 SCU Power Distribution Panel Fan UnitStatus Cause ONS 15252 MCU Physical Configuration Physical LayoutFiber Organizer Configuration of the ONS 15252 Multichannel Unit Internal BUS Clip NAM Clip NCB HFM ONS 15201 SCU Physical ConfigurationPhysical layout of the ONS 15201 SCU Power and GroundingONS ONS 15252 MCU Power and GroundingSafety Specifications Environmental ComplianceElectromagnetic Compatibility Product Safety Wavelength GridChannel Number Frequency THz Wavelength nm Page Network Management Overview Network ControlCisco ONS 15200 Product Description 78-13766-01 Hardware Platforms EIA/TIA-232 RS-232 InterfaceSpeed Kbps Data Bits Parity None Stop Bits Flow Control Parameter ValueEthernet interface Command Line InterfaceMA interface Maintenance ManagerInternal Data Bus Web-Based InterfaceONS 15252 MCU internal data bus extension ports Alarms Simple Network Management Protocol InterfaceCisco Transport Manager Condition Name Definition Alarm NameAlarm Name Definition Page Client Layer Interface Port Module OverviewMaximum Equipment Version CLIPs Restriction TemperatureCommunication Interface Module ONSNetwork Adaptation Module Network Control Board ModuleStatus Connection Module Y Bridge ModuleCollector Filter Module Connection ModuleHub Filter Module Line ModuleTermination Module Page Parameter Condition Maximum OperationalParameter Condition Minimum Unit OpticalOptical Performance Optical FrequenciesOptical Loss Includes Connectors Equipment Maximum dBEquipment Maximum dB Includes15201 SCU unprotected optical path 100/0 or 0/100 Parameter Condition Min Max Unit EnvironmentalParameter Units MechanicalParameter Max Unit ElectricalAcronyms Control area network Electronic Industries Association International Electrotechnical Commission Internet protocol National Fire Protection Association Subnetwork Manager D E IN-2 IN-3 IN-4