GarrettCom 500-Series Magnum 528’s internal jumpers for auto-negotiation on or OFF, Operation

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Magnum 500-Series Switching Hubs

Installation and User Guide (08/98)

 

 

 

 

 

 

 

Figure 3.5. Be certain that the main power is off before opening the unit or

changing any internal settings.

 

 

 

 

 

 

 

 

 

 

 

 

 

Switch

Port

Function

Default setting

Manual setting

 

 

SW2

Both 100Mb

Auto-negotiation

100 Mb (Non-Auto)

AUTO

 

 

SW7

Port

1

Uplink

Uplink =

Uplink X

 

 

When Non-Auto:

 

 

 

 

 

 

 

Jumper

Port

Function

Position 1 - 2

Position 2 - 3

 

 

JP4

Port

1

10 / 100 config

100 Mb (default)

10 Mb

 

 

JP3

Port

2

10 / 100 config

100 Mb (default)

10 Mb

 

SW7

X

SW7

 

1

UPLINK

 

100 Mb PORT

 

=

 

 

JP4

100

JP4

1

 

JP3

 

10

10

JP3

1

 

100

SW2

100 Mb PORTS NEGOTIATION

100 Mb

SW2

AUTO

 

Figure 3.5 : Magnum 528’s internal jumpers for auto-negotiation ON or OFF

Note that auto-negotiation is an on-going process that can introduce changes in network operation at any time, whether intended or accidental. Getting an auto- negotiating network running properly once is not enough to make certain that it will continue to operate correctly indefinitely. Attached devices can and do change while the network is operating. In addition, there may be intermediate devices (such as media converters, which do not support auto-negotiation) in the cabling between the switched port and the rest of the network, requiring the switching port to be fixed in speed and mode in order to achieve and maintain the desired overall network operation.

Therefore, the default setting of fixed 100Mb speed with F/H manual selection (no auto-negotiation, copper ports) is generally desirable because it is a safe and a maximum-performance condition for the Model 528’s Fast Ethernet high speed ports.

See Section 4.4 for additional information on auto-negotiation functionality.

4.0OPERATION

This chapter describes the functions and operation of the Magnum 508, 528 and 528F Switching Hubs.

GARRETT

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Contents Switching Hubs Trademarks Contacting Garrett Communications Fax 510 Email support@garrettcom.comInstallation Table of ContentsMagnum Specifications Power Supply Internal Warranty100Mb/s Multi-mode Port Optical Typical Worst LEDsOrdering Information MagnumMagnum 528F-SC Magnum 528F-STProduct Description Magnum 500-Series Switching Hubs IntroductionInspecting the Package and Product 2a Front view Magnum 508, 528 and 528F Switching Hubs Magnum 500-Series chassisUplink @ 100Mb Fiber port, type ST or SC Magnum 528F models only Frame Buffering and LatencyGarrett Full-duplex or Half-duplex operation, auto-sensing High PerformanceAssured 100Mb performance in any network set-up Dynamic Buffer Space AllocationApplications Example 1 MagnumExample 2 Magnum Example 3 Magnum InternetExample 4 Magnum 528F InternetInstallation Locating Magnum 500-Series switchesWall or Vertical Surface Mounting Magnum 500-Series, metal mounting brackets Optional E-StandMagnum 500-Series AC power connector Connecting Ethernet Media Media Ieee Standard100BASE-TX connections Magnum 528 only Connecting Fiber Optic 100BASE-FX, Type ST and SC 100BASE-TX connections Magnum 528F onlyMagnum 528’s internal jumpers for auto-negotiation on or OFF OperationSwitching Functionality Filtering and ForwardingAddress Learning PWR LK/RXFDX AutoAuto-negotiation option for Fast Ethernet copper ports Auto-negotiation for 10Mb ports, half- or full-duplex mode Collision-based Flow-control Troubleshooting Before Calling for AssistanceWhen Calling for Assistance Return Material Authorization RMA ProcedureNo Problem Found Shipping and Packaging Information Appendix B 48VDC Addendum B2.0 Magnum 508, 528 and 528F 48VDC OptionB3.0 Applications B4.0 Installation B6.0 TroubleshootingB5.0 Operation