GarrettCom 84-00136 manual Flow-control, Ieee 802.3x standard

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Magnum 6K16-Series Managed Fiber Switch Installation and User Guide (04/06)

4.5Flow-control, IEEE 802.3x standard

Magnum 6K16-Series Switches incorporate a flow-control mechanism for Full-Duplex mode. The purpose of flow-control is to reduce the risk of data loss if a long burst of activity causes the switch to save frames until its buffer memory is full. This is most likely to occur when data is moving from a 100Mb port to a 10 Mb port and the 10Mb port is unable to keep up. It can also occur when multiple 100Mb ports are attempting to transmit to one 100Mb port, and in other protracted heavy traffic situations.

Magnum 6K16-Series Switches implement the 802.3x flow control (non- blocking) on Full-Duplex ports, which provides for a “PAUSE” packet to be transmitted to the sender when the packet buffer is nearly filled and there is danger of lost packets. The transmitting device is commanded to stop transmitting into the 6K16-Series Switch port for sufficient time to let the Switch reduce the buffer space used. When the available free-buffer queue increases, the Switch will send a “RESUME" packet to tell the transmitter to start sending the packets. Of course, the transmitting device must also support the 802.3x flow control standard in order to communicate properly during

normal operation.

Note: When in Half-Duplex mode, the 6K16-Series Switch implements a back-pressure algorithm on 10/100 Mb ports for flow control. That is, the switch prevents frames from entering the device by forcing a collision indication on the half-duplex ports that are receiving. This temporary “collision” delay allows the available buffer space to improve as the switch catches up with the traffic flow.

4.6Power Budget Calculations for Magnum 6K16-Series PM’s with Fiber Media

Receiver Sensitivity and Transmitter Power are the parameters necessary to compute the power budget. To calculate the power budget of different fiber media installations using Magnum products, the following equations should be used:

OPB (Optical Power Budget) = PT(min) - PR(min)

where PT = Transmitter Output Power, and PR = Receiver Sensitivity

Worst case OPB = OPB - 1dB(for LED aging) - 1dB(for insertion loss) Worst case distance = {Worst case OPB, in dB} / [Cable Loss, in dB/Km]

where the “Cable Loss” for 62.5/125 and 50/125∝m (M.m) is 2.8 dB/km, and the “Cable Loss” for 100/140 (Multi-mode) is 3.3 dB/km,

and the “Cable Loss” for 9/125 (Single-mode) is 0.5 dB/km

and the “Cable Loss” for 9/125 (Single-mode) is 0.4 dB/km (LXSC25) and the “Cable Loss” for 9/125 (Single-mode) is 0.25 dB/km

(LXSC40)

and the “Cable Loss” for 9/125 (Single-mode) is 0.2 dB/km (LXSC70)

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Contents Managed Fiber Switch Trademarks Canadian Emission Contacting GarrettCom, IncTable of Contents InstallationIntroduction Operation Intro Magnum 6K16/6K16V Managed Fiber Switch Port Modules45Www . GarrettCom . com Overview Media CONVERTERS, 10MB and 100MB Series Bridge Port Modules BPMS, 4 TYPES, for SegmentTRANSCEIVERS, 10MB Series MINI-TRANSCEIVERS and Coax Models Maximum 10 Mbps Ethernet Segment Lengths Technical SpecificationsPerformance Network Standards and Compliance, hardwarePower Supply Internal Fiber Single-mode connector typesAlarm Relay Contacts Management Console connectorMagnum 6K16 Per-port MDI or Mdix on RJ-45Mountings Agency Approvals and Standard Compliance Magnum 6K16VOrdering Information 6KP4-FXSC 6KP8-MTRJ6KP8-MLC 6KP8-SLCWww . GarrettCom . com 6K PoE Modules with 48VDC Pass-Through Introduction Inspecting the Package and Product Product Description Magnum 6K16-Series 6K16/6K16V 1a Magnum 6K16V, Managed Fiber Switch 1b Magnum 6K16, Managed Carrier Class Switch 1c Magnum 6K16-Series family 6K16 and 6K16V, At a glance Flexibility to adapt to any FDX or Set-up of the software See Magnum 6K-MNS Software Manual forEight-Port Copper Module, 6K8-RJ45 Per the IEEE802.3af PoE @ Mtrj 100Mb mm SFF fiber Four-Port 10 Mb and 100Mb mm Fiber ST ModulesMagnum Combo six Port modules are also available withPacket Prioritization, 802.1p QOS Gigabit 1000Mbps port modulesFrame Buffering and Flow Control GarrettCom proprietary MIBs for Snmp Managed Network Software MNS-6K for Magnum 6K8-SeriesFeatures and Benefits „ Managed switching for high performance Ethernet LANs„ Features Fiber-Built-In Applications Magnum 6K25 Snmp Backup Connecting Ethernet Media Locating Magnum 6K16-Series SwitchesIeee Standard Media Type Max. Distance Port Module Fiber Connecting Fiber Optic ST-type, twist-lockConnecting Fiber Optic SC-type, Snap-In Connecting Single-Mode Fiber OpticMedia Ieee Standard DIN-Rail Mounting Magnum 6K16V Connecting Gigabit Media Using GBICsWww . GarrettCom . com Mounting Dimensions for 6K16Vwith metal brackets 2a- One Magnum 6K16 deployed over a K16-2Tray Relay Contacts Powering the Magnum 6K16-Series Managed Fiber SwitchPreparation for Installing and Removing 6KPMs 6K16-Series Port Module 6KPM Installation1a Removing the Front panel from the unit Remove Chassis CoverRemove front panel face plate retaining screws Installing 6KPM Cards in the Magnum 6K16-SeriesUplink Switch 2f Securely latching up 6KPM Cards into a Magnum 6K16-Series 3b Removing a 6KPM Card Removing 6KPM CardsDB-9 Console port connector 1 RS-232 DB-9 Console Com port Serial port pin assignmentsEnlarged view of Magnum 6K16-Series Console Port area Switching Functionality Filtering and ForwardingAddress Learning PWR Up-link Manual Switches set as = , for RJ-45 port onlyStatus LEDs Auto-CrossMDIX and Auto-negotiation, for RJ-45 portsWww . GarrettCom . com Flow-control, Ieee 802.3x standard ’cvr 6KP4V6KPM Module Description Magnum 6K16-Series Managed Segments. When installed in aSwitch, the copper port Dual speed copper ports.1b 6KP4-F10ST, 4@10Mb multi-mode FX-ST twist lock Module Activity ACT, Link LK, Mode 100Mbps fiber opticMagnum 6KP6 Transceivers all in one module. ThisWww . GarrettCom . com Port@ 100Mbps Multi-Mode Fiber port Activity FULL/HALFLink Copper and fiber Small Form Factor Mtrj type ports. The small size Mtrj connectors provides anMagnum 6KP8-45MT Module is a combo module with9 6KP8-RJ45 Twisted Pair, 10/100Mb 8-Port PoE LEDs Summary Fig. the top 8-RJ45Magnum 6KP8 13a GBIC-LXSC Gigabit fiber 1000Mb, multi-mode SC Connector GBIC-SXSC Gigabit fiber1000Mb, multi-mode SC Connector@ 1000Mb Fiber SC + 2@ 100Mb SC 14 6KM-BLNKBefore Calling for Assistance Return Material Authorization RMA Procedure When Calling for AssistanceAppendix B Internal DC Power Supply Options No Problem FoundShipping and Packaging Information B2.0 -48VDC, 24VDC and 125VDC POWER, Theory of Operation B4.0 6K16-SERIES, -48V, 24, 125 or 5VDC Installation B3.0 Applications for DC Powered Ethernet SwitchesB6.0 Ordering Information B7.0 TroubleshootingC1.0 Specifications for Magnum 6K16-SERIES Fiber Switch B5.0 OperationGND C4.0 Features and Benefits of the DUAL-SOURCE DesignC5.0 Installation C7.0 Operation C5.1 UL RequirementsC6.0 Ordering Information Example Magnum 6K16-SeriesR-48VDC

84-00136 specifications

GarrettCom 84-00136 is a robust and reliable networking solution widely recognized for its versatility and performance in demanding environments. Specifically designed for industrial applications, the device excels in offering connectivity within harsh conditions, ensuring seamless communication across various network topologies.

One of the standout features of the GarrettCom 84-00136 is its high port density. With multiple Ethernet ports, it allows for extensive network connections, making it an ideal choice for facilities that require numerous devices to be interlinked. This capability ensures that organizations can efficiently manage their communication needs without compromising on performance.

Another significant characteristic of the 84-00136 is its industrial-grade durability. Built to withstand extreme temperatures, vibrations, and shocks, the device is suited for applications in manufacturing plants, transportation systems, and utility networks. This level of resilience is essential for maintaining reliable operations in environments where standard networking equipment might fail.

The technology behind the GarrettCom 84-00136 includes advanced switching capabilities. With support for both managed and unmanaged configurations, users can choose the level of control and customization that best fits their network requirements. The managed features allow for extensive monitoring and management, facilitating better network performance and security.

In addition, the 84-00136 supports various communication protocols, improving interoperability with existing systems. This flexibility is crucial for organizations looking to integrate new technologies into their established networks without overhauling the entire system.

Security is another critical aspect of the GarrettCom 84-00136. The device is equipped with robust security features, ensuring that network data remains protected from unauthorized access. This is particularly important in industrial environments where sensitive information must be safeguarded against potential cyber threats.

Ease of installation and maintenance is also a highlight of the GarrettCom 84-00136. Its user-friendly design allows for straightforward setup, minimizing downtime during deployment. Furthermore, ongoing maintenance is simplified through an intuitive interface, enabling quick troubleshooting and adjustments.

In summary, the GarrettCom 84-00136 is a high-performance networking solution tailored for industrial applications. Its impressive features, including high port density, industrial-grade durability, advanced switching capabilities, and robust security measures, make it an optimal choice for organizations seeking reliable and efficient network connectivity in challenging environments.
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