GarrettCom Magnum 20X manual Repeater Functionality

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This section describes the functionality and operation of the Magnum 200X Two- Port repeaters.

4.1Repeater Functionality

The Magnum 200X units operate as mixed-media or homogeneous Ethernet repeaters. Both types are compliant with IEEE 802.3 specifications and supports all IEEE defined media, including 10BASE-T, 10BASE-FL, FOIRL, 10BASE2, and 10BASE5. The following describes the basic functionality of the Magnum 200X Two-Port Repeaters.

1.Repeater Functions: Each RPM port operates in conjunction with the controller functions of the Magnum 200X base unit, functioning together as a fully compliant Ethernet repeater. Each 200X unit counts as a single 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. When a collision signal is detected at a receiving port, it generates a jam pattern to the other port. The sequence of jam signals depends on the sequence and location of collisions.

3.Partitioning and Re-connection:A Magnum 200X 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 200X RPMs indicate link integrity for fiber optic and twisted pair segments. Broken cables or a loss of power at any point in twisted pair and fiber segments will turn off the LINK LED indicator on the associated RPM.

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Contents Magnum Two-Port Repeaters Page Trademarks Magnum Two-Port Repeaters Installation and User GuideContacting Garrett Communications Table of Contents Magnum Line Workgroup Bridges, 10Mb series Fan-Outs, 10Mb series Page Network Standards ConnectorsMaximum Ethernet Segment Lengths LED Indicators on Chassis Magnum 200X Power Supply InternalPackaging 200X Specifications Repeater Port Modules RPMs WarrantyOrdering Information Introduction Magnum 200X Spare PartsInspecting the Package and Product Product Description Magnum 200X Repeater Port Modules RPMs 1 MagnumRPM-FST, RPM-FSC, RPM-TP Magnum RPM Cards RPM-BNC, RPM-AUI, RPM-DTERPM-TP Twisted Pair Magnum RPM-BNCMagnum RPM-TP Page Magnum RPM-FST ShellMagnum RPM-FSC RPM-FSC Fiber SC, Snap-in ConnectorRPM-SMF Single-mode Fiber RPM-DTE Jumper Across Distances Supported10 km Not usedSix Models for Mixed Media Segment 10BASE2 BNCPage Locating the Magnum 200X Two-Port Repeater Connecting Ethernet MediaMagnum 200X Table-Top / Shelf Mounting Connecting ThinNet 10BASE2 BNC Connecting Twisted Pair RJ-45, Unshielded or ShieldedConnecting Drop Cable 10BASE5 DTE Connecting ThickNet 10BASE5 AUIConnecting Single-Mode Fiber Optic SMF Connecting Fiber Optic SC-type, Snap-onStop Side view of RPM card Repeater Functionality Magnum 200X chassis unit Chassis LEDsBefore Calling for Assistance Return Material Authorization RMA Procedure Page B3.0 Applications B1.0 Specifications for Magnum 210X TWO-PORT RepeatersPower Supply Internal 48 VDC Option B2.0 48V DC Power OPTION, Theory of OperationB5.0 Operation B4.1 UL RequirementsB6.0 Ordering Information