GarrettCom 8000X manual Operation, Repeater Functionality, Dual-Speed Functionality

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Magnum 8000X Mixed-Media Fiber Hubs

Installation and User Guide (05/ 02)

 

 

 

4.0Operation

The operation of the Magnum 8000X is described in this section.

4.1Repeater Functionality

The Magnum 8000X operates as a Mixed-Media Ethernet Hub to support multiple port segments within two (10 and 100Mbps) collision domains. The following describes the basic functionality of the Magnum 8000X Fiber Hub.

1.Repeater Functions: Each front port operates in conjunction with the controller functions of the 8000X chassis as a fully compliant Ethernet repeater. The entire hub (or a stack of multiple units) counts as one Dual-Speed repeater.

2.Collisions: When a collision is detected at a port other than the original receiving port, it generates a jam pattern to the other ports in that domain. When a collision signal is detected at a receiving port, it generates a jam pattern to the other ports. The sequence of jam signals depends on the sequence and location of collisions.

3.Partitioning and Re-connection:An Magnum 8000X will automatically disconnect (partition) any segment (port) when 64 consecutive collisions occur or after 6.5 ms of continuous transmissions. Network integrity is checked every 800 ms and segment (port) reconnection occurs after a 512-bit packet is transmitted without error.

4.Link Status: The Magnum 8000X PMs indicate link integrity for fiber optic and twisted pair segments. LINK is normally lit. Broken cables or a loss of power at any point in such segments will turn off the LINK LED.

4.2Dual-Speed Functionality

The Magnum 8000X handles the two different traffic domains separately . The 8000X provides switched (bridged) connectivity between the Ethernet (10 Mbps) and Fast Ethernet (100Mbps) domains. It joins the two network domains for unified operation, and filters/ forwards packets in both directions to maximize bandwidth utilization and performance. Magnum 8000Xs are hardware plug-and-play devices. There is no software set-up to be done at installation or for maintenance. The functions of the Magnum 8000X are described in this manual.

Each time a packet is received on one domain of the bridge module, the decision is taken to either to filter or forward the packet. Errored packets are always filtered. For good packets, the filter and forward decisions are made based on the destination address contained in each packet. If the destination address is on the same domain from which the packet originated, then it is filtered and not forwarded to the other domain. If the destination address is not found to be a match in the address table for the originating domain, then it is forwarded to the other domain. If it is a new node address coming in which the switch did not previously know about, it “learns” the new address and puts it in the correct port address table. See “Address Learning” for more details. This diagram below shows the filter / forward logic for both domains.

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Contents Mixed-Media Fiber Hubs Magnum Mixed-Media Fiber Hubs Installation and User Guide TrademarksGarrettCom, Inc Contacting GarrettCom, IncMedia Converters, 10Mb and 100Mb series Personal Switches , 10/100MbPersonal Hubs, 10Mb series Introduction Magnum 8000X MIXED-MEDIA Fiber HUB Roubleshooting Revisions Technical Specifications Power Supply, AC InternalNetwork Standards Maximum Ethernet Segment or Domain LengthsDC Power Supply Options Manual SwitchesLED Indicators WarrantySpecifications Switching Port Modules SPMs for bonus port PM Model # Ieee Standard Speed Connector type8000X Front Port Modules PMs Switch Port Modules SPMs for the Bonus PortMagnum 8000X Mixed-Media Fiber Hubs Magnum 8000X Mixed-Media Fiber Hubs General Information Product DescriptionMagnum 8000X Fiber Hub Chassis A Magnum 8000X, Front ViewC Magnum 8000X Rear Panel View Port Modules PMsSwitch Port Modules SPMs FPM-MSC, FPM-MST, FPM-MV45, FPM-SXMST, & PM-FP5a Inside view of Magnum 8000X with SPM installed. Rear view Filtering and Forwarding / Address LearningSeg Not in table Add source to table Forward Filter None Magnum SPM-FDST Magnum SPM-FDSC Magnum SPM-FDSSCSPM Specification Summary Table Magnum SPM-TTX10 /100 Speed Auto-sensing 8000X front copper ports only Stacking Magnum Mixed-Media 8000X Fiber Hubs7a a stack of one Magnum 8000X and two DS-8016-A’s Internal view of 8000X with bridge module installed Stackable and Scaleable Configurations LEDs for Chassis and PM CardsApplications Magnum 8000X has 16 ports per unit Locating the Magnum Magnum 8000X InstallationConnecting Ethernet Media Copper Connecting Fiber Optic ST-type, twist-lockConnecting Fiber Optic SC-type, Snap-In Connecting Single-Mode Fiber Optic Media Ieee StandardBit Time per Meter BT/m Magnum 8000X Mixed-Media Fiber Hubs PDV = X + 100 + 80 + 80 + 1b Multiple cascaded Magnum 8000X Mixed-Media hubsMax. User Max. Inter Hubs Length mConnections to NICs which support Auto-Negotiation Table-Top or Shelf MountingPreparation for Installing and Removing PMs StopRemove Chassis Cover 1a Removing Chassis CoverSlot. Align Installing PM Cards in the MagnumConnector socket 2b Inserting PM Cards into a Magnum Removing PM CardsPM Cards 10a Removing Chassis Cover Installing an SPM Module in the Magnum 10.1a Top View SPM Module Installed in aPowering the Magnum Removing an SPM Bonus Port ModuleRemove retaining screws for the SPM, face-plate only Remove SPM CardMagnum 8000X Mixed-Media Fiber Hubs Dual-Speed Functionality OperationRepeater Functionality Throughput Increase Address Learning Address Table Maintenance8000X Dual-Speed Hub Functionality Software Transparency Auto-negotiation and speed-sensingAuto-negotiation per-port for dual-speed hubs occurs when Chassis LEDsPower Budget Calculations for 8000X FPM’s and Fiber Media ’cvrIntroduction Magnum 8000X Port Modules FPM-MST, 100Mbps multi-mode FX-ST-type, twist-lock connector FPM-MSC 100Mbps multi-mode FX-SC-type, snap-in connectorFPM-SSC 100Mbps single-mode FX-SC-type, snap-in connector Activity 2 LinkActivity Link Connector100BASE-FX MT-RJ FPM-SXMST and Sxmsc 100BASE-SX when available SX short wavelengthPM-RJ45 and RJ45U Twisted Pair Each empty PM slot Must be installedPM-FP Troubleshooting Before Calling for AssistanceWhen Calling for Assistance Return Material Authorization RMA ProcedureNo Problem Found Shipping and Packaging InformationSpecifications for Magnum Mixed -MEDIA 8000X Hubs B3.0 Applications for DC Powered Ethernet HubsB4.0 Installation B4.1 UL RequirementsB5.0 OperationB6.0 Ordering Information B7.0C3.0 DUAL-SOURCE OPTION, Theory of Operation C4.0 Features and Benefits of the DUAL-SOURCE DesignC5.0 Installation Example Magnum 8000X-48VDC C5.1 UL RequirementsC6.0 Ordering Information C7.0

8000X specifications

The GarrettCom 8000X series represents a significant advancement in industrial networking technology, designed specifically for demanding environments that require robust and reliable communication solutions. Known for its versatility and resilience, the 8000X series caters to various industries, including transportation, utilities, and automation, making it a go-to choice for mission-critical applications.

One of the main features of the 8000X is its modular design, allowing users to customize the switch according to their specific networking needs. This feature provides the flexibility to add and remove modules seamlessly, ensuring that the network can adapt as requirements change over time. The modularity also contributes to easier maintenance and upgrades, reducing downtime and enhancing operational efficiency.

The 8000X series is built to operate in harsh environments, with an operating temperature range of -40°C to 85°C, making it suitable for outdoor and industrial applications. Its rugged chassis is designed to withstand vibration and shock, ensuring reliability even in the most challenging conditions.

Equipped with both Ethernet and fiber optic ports, the 8000X series supports a variety of network topologies and facilitates extensive connectivity options. It usually offers multiple gigabit Ethernet ports, allowing for high-speed data transmission. This feature is crucial for applications that demand real-time data processing, such as video surveillance and process control systems.

In terms of security, the GarrettCom 8000X series incorporates advanced features such as VLAN support, access control lists (ACLs), and network monitoring tools. These security measures are essential for protecting sensitive data and maintaining network integrity against potential threats.

The device also supports various network protocols, including IPv4, IPv6, and various industrial protocols such as Modbus. This compatibility ensures that the 8000X can seamlessly integrate into existing infrastructures and communicate effectively with other devices and systems.

Furthermore, the GarrettCom 8000X series is equipped with built-in redundancy features, such as dual power supplies and support for Rapid Spanning Tree Protocol (RSTP), which enhance network reliability and minimize the risk of downtime.

Overall, the GarrettCom 8000X series stands out with its robust construction, modularity, and advanced technology, making it an ideal solution for organizations seeking reliable networking equipment capable of performing under extreme conditions. Its features make it a vital asset for industries focused on maintaining high-performance communication standards.
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