Black Box LE14XXA, Modular Switches manual General information

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Black Box Modular SwitchesInstallation and User Guide (8/99)

One frequently -used application for the 4-Port -Switch copper ports is to connect one of them using a fiber media converter to another Switch in the network backbone, or to some other remote 100Mb device. In this case, it is desirable to operate the fiber link at 100Mb spee and at either half- or full duplex mode depending on the capabilities of the remote device. Standard commercially-available Fast Ethernet media converters mostly do not support auto- negotiation properly, and require that the switched port to which they are connected be at 100Mb fixed speed. Attachment to 10/100 auto-negotiation ports typically will not work properly. The 4-Port -Switch’s RJ-45 ports handle this situation by changing the internal jump settings. (see Section 3.4)

When 4Port-Switch’s RJ-45 copper ports are set for auto-negotiation and connected an another auto-negotiating device, there are 4 different speed and F/H modes selection dependin on what the other device supports. These are: (1) 100Mb full-duplex, (2) 100Mb half-duplex, ( 10 Mb full-duplex and (4) 10 Mb half-duplex.

The auto-negotiation logic will attempt to operate in descending order and will normally arrive the highest order mode that both devices can support at that time. (Since auto-negotiation is potentially an externally -controlled process, the original “highest order mode” result can change at any time depending on network changes that may occur). If the device at the other end is no an auto-negotiating device, the 4Port-Switch’s RJ-45 ports will try to detect its idle signal to determine 10 or 100 speed, and will default to half-duplex at that speed per the IEEE standard.

General information -

Auto-negotiation per-port for 802.3u-compliant switches occurs when:

the devices at both ends of the cable are capable of operation at either 10 Mb or 100Mb speed and/or in full- or half-duplex mode, and can send/receive auto- negotiation pulses, and . . .

--when the second of the two connected devices is powered up*, i.e., when LINK is established for a port, or

--when LINK is re-established on a port after being lost temporarily.

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Contents Modular Switches Contacting Black Box Corporation TrademarksFCC Statement Black Box Modular Switches Installation and User Guide 8/99 Table of Contents Troubleshooting Network Standards Technical Specifications PerformanceConnectors for copper wiring Fiber Multi -mode connector types48VDC Power Supply Optional Fiber Single-mode connector typesManual switch -selections and jumpers Power Supply InternalAgency Approvals WarrantyLE1416A Model InformationLE1401A LE1408AIntroduction Inspecting the Package and Product LE14XXA-Series chassis models Product Description , 8-port and 16-port Modular SwitchesModular Switches 4-port modules, 100Mb fiber Fiber 4-Port Modules, LE1420C, LE1419C LE1423C LE1422C4-port modules, 10 Mb fiber Combo 4 Port Modules, 3 + 1, 3 RJ-45 and 1 fiber port 4 4-Port Module, RJ-45 copperFrame Buffering and Latency Page Port, 12-port, 8-port and 4-port models Plug-and-Play installation for high performance switchingFront-mounted LEDs, world-wide AC power supply Full-duplex or Half-duplex operation, auto-sensingExample 1 LE1401A ApplicationsXample 2 8-port LE1408A Example 3 16-port LE1416A 4c LE1416A provides a 100Mb mixed-media backbone SwitchLocating LE14XXA-Series Switches InstallationCopper Connecting Ethernet MediaConnecting Fiber Optic ST-type, twist-lock Ieee Standard Media Type Max. Distance Port Module FiberConnecting Fiber Optic S C-type, Snap-In Connecting Single-Mode Fiber OpticMedia Ieee Standard Connector Magnum LE1401A, optional Table-Top or Shelf MountingWall or Vertical Surface Mounting, 8-port LE1401A Proper mountingFactory Settings 10/100 Mbps Factory Settings For RJ-45 Factory Settings 10Mbps Half- Duplex Powering the LE14XXA-Series Switch 10Mbps Fiber ports internal jumper settingsPage Gure 3.9.1a Removing Hassis Cover Port Module 4PM InstallationPreparation for Installing and Removing 4PMs Ep 2. Remove Chassis Cover1c Front View 4PM Retaining Screws hold Face PlatesInstalling 4PM Cards in the LE14XXA-Series Inserting 4PM Cards Into a LE1416A 2b Top View 4PM Module Installed inside a LE1416A4PM Cards Switching Functionality Filtering and ForwardingAddress Learning Steady ON, Link status for 10 Mbps and 100Mbps operation Power LED, on when AC power is applied to the unitStatus LEDs For all LE14XXA-Series modelsGeneral information Flow-control, Ieee 802.3x standard Auto-negotiation for 10 Mb ports, half- or full-duplex modeDistanc Module Product Description Introduction LE14XXA-Series 4-Port Modules4PMIEEE-specified 100Mbps shared-collision LE1421C 100Mbps single-mode FX-S C-type, snap-in connector Small-form-factor LE1425C Twisted Pair, 10/100Mb TP 4-Port 10/100BASE-T and 100BASE-FX Combo Quad-Port Connectors Fety, etc 10 4PM-FPBefore Calling for Assistance TroubleshootingShipping and Packaging Information When Calling for AssistanceBlack Box Corporation

LE14XXA, Modular Switches specifications

The Black Box LE14XXA series of modular switches are designed for high-performance networking in both small and medium enterprises, as well as in larger data center environments. These switches stand out due to their scalability, flexibility, and robust functionality, making them suitable for a variety of applications.

One of the main features of the LE14XXA modular switches is their modular design, allowing for the integration of various interface cards to tailor the switch to specific networking needs. This flexibility ensures that organizations can adapt their network architecture as requirements evolve, making it a future-proof investment. The switches support a range of modules, including Ethernet, fiber optics, and PoE (Power over Ethernet), which can be easily swapped out or added to support changing technology demands.

In terms of performance, the LE14XXA series offers impressive throughput capabilities, often supporting up to 10 Gbps per port. This speed is critical for businesses that rely on fast data transfer rates for tasks such as video conferencing, large file transfers, and real-time applications. The switches also feature advanced Layer 2 and Layer 3 functionalities, facilitating efficient data routing and switching, which is essential for maintaining effective network performance.

Security is another critical characteristic of the Black Box LE14XXA switches. They incorporate a variety of security protocols, including 802.1X port-based access control, VLAN support, and secure management interfaces, which help protect sensitive data and ensure compliance with industry standards. This makes them an excellent choice for organizations that prioritize data protection and regulatory compliance.

Ethernet redundancy protocols, such as Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP), enhance network reliability by providing failover options in case of link failures. Additionally, the LE14XXA switches feature energy-efficient designs that comply with energy-saving standards, which can significantly reduce operational costs over time.

User-friendly management interfaces, including a web-based GUI and command-line interface (CLI), simplify the configuration and monitoring processes. This ensures that IT administrators can efficiently handle the network without extensive training or experience.

Overall, the Black Box LE14XXA modular switches combine advanced technology, security features, and versatile design, making them a powerful choice for modern networking needs. Their adaptability and high performance offer businesses the capability to build scalable and secure networks that can grow alongside their operations.
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