MRV Communications MR2228-S2C manual Stacking Ports, Port and System Status LEDs

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Stacking Ports

The unit provides two stacking ports that provide a 1 Gbps stack backplane connection. Up to eight switches can be connected together using Category 5 Ethernet cables (purchased separately). The Master button enables one switch in the stack to be selected as the master. This is the unit through which you manage the entire stack.

The stacking ports can also be used as normal Ethernet ports in standalone mode by pressing the Uplink button.

Figure 1-2. Stacking Ports

Port and System Status LEDs

The MR2228-S2C base unit includes a display panel for key system and port indications that simplify installation and network troubleshooting. The LEDs, which are located on the front panel for easy viewing, are shown below and described in the following tables.

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Contents Stackable Fast Ethernet Switch Installation Guide Installation Guide Contents Appendix B Cables Introduction Switch ArchitectureOverview 1000BASE-T/SFP Ports Description of HardwareNetwork Management Options 10BASE-T/100BASE-TX PortsPort and System Status LEDs Stacking PortsCondition Status Port Status LEDsSystem Status LEDs Power Supply ReceptaclesPerformance Features and BenefitsConnectivity ExpandabilityManagement Collapsed Backbone Introduction to SwitchingNetwork Planning Application ExamplesCollapsed Backbone Network Aggregation PlanNetwork Aggregation Plan Remote Connections with Fiber CableRemote Connections with Fiber Cable Making Vlan ConnectionsMaking Vlan Connections Application NotesSelecting a Site Installing the SwitchEthernet Cabling Optional Rack-Mounting Equipment Equipment ChecklistPackage Contents MountingAttaching the Brackets Rack MountingAttaching the Adhesive Feet Desktop or Shelf MountingConnecting Switches in a Stack Installing an Optional SFP TransceiverConnecting Switches in a Ring-topology Stack Connecting to a Power SourceWiring Map for Serial Cable Connecting to the Console PortDTE Port Twisted-Pair Devices Connecting Network DevicesConnecting to PCs, Servers, Hubs and Switches Making Network ConnectionsMaking Twisted-Pair Connections Network Wiring ConnectionsFiber Optic SFP Devices Network Wiring Connections1000BASE-T Cable Requirements Connectivity RulesMbps Ethernet Collision Domain Cable Labeling and Connection RecordsMbps Gigabit Ethernet Collision Domain Mbps Fast Ethernet Collision DomainPage Table A-1. Troubleshooting Chart Symptom Action Appendix a TroubleshootingDiagnosing Switch Indicators Power and Cooling ProblemsIn-Band Access InstallationStack Troubleshooting Twisted-Pair Cable and Pin Assignments Appendix B Cables10BASE-T/100BASE-TX Pin Assignments Crossover Wiring Straight-Through Wiring1000BASE-T Pin Assignments Adjusting Existing Category 5 Cabling to Run 1000BASE-T Cable Testing for Existing Category 5 CableFiber Standards Appendix C Specifications Throughput Forwarding ModeManagement Features In-Band Management SafetyCollision 1000BASE-TAuto-Negotiation BandwidthIeee 802.3ab Media Access Control MACRJ-45 Connector Switched Ports