GarrettCom 14E manual Worst case delays taken from Ieee Std 802.3u-1995

Page 43

Magnum14E Media Converters

Installation and User Guide (10/02)

 

Table 3.4b: Worst case round-trip delay for Fast Ethernet device components*

 

Component

Round-trip delay in Bit Times (BT)

 

 

2 TX DTEs

100

 

 

 

2 FX DTEs

100

 

 

 

1 FX and 1 TX DTE

100

 

 

 

1 T4 and 1 TX or FX DTE

127

 

 

 

Class I Repeater

140

 

 

 

Class II Repeater with any

92

 

 

 

combination of TX and FX ports

 

 

 

*Worst case delays taken from IEEE Std 802.3u-1995.

To determine whether a prospective network topology adheres to the collision domain diameter specification, the following formula should be applied to the worst case path through the network. The worst case path is the path between the two Fast Ethernet devices

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Contents Magnum 14E Fast Ethernet Media Converters Trademarks Magnum 14E Media Converters Installation and User GuideMagnum14E Media Converters Installation and User Guide10/02 Contacting GarrettCom, Inc GarrettCom, IncMagnum14E Media Converters Installation and User Guide10/02 Table of CONTENTSPage InstallationAppendix a W Arranty I Nformation Revisions Network Standards Technical Specifications PerformanceOperating Environment Maximum Standard Fast Ethernet Segment Lengths Power Supply ExternalFiber, multi-mode up to 2Km ConnectorsFiber, single-mode 25-Km and up Packaging LED Indicators for the Magnum 14E Dual, on front and on endAgency Approvals Ordering Information Model Number Description Inspecting the Package and Product IntroductionMagnum14E Media Converters Installation and User Guide 10/02 Product Description Magnum14E Media Converters Installation and User Guide 10/02 Magnum 14E Media Converter Equipped with one fiber SC-type SFF MT-RJ connector is keyed so Features and Benefits Reduces Network Costs Choice of 100Mb Ethernet Fiber port connector types Small, Compact, Lightweight DesignTwo sets of LEDs for viewing status from any angle Applications BASE-TX Magnum14E Media Converters Installation and User Guide 10/02 Magnum14E Media Converters Locating the Media Converter Unit InstallationMC14-TRAY for Rack Mounting of Magnum 14E Media Converters Magnum14E Media Converters Installation and User Guide 10/02 Front hold the media converters firmly in place in the tray Magnum14E Media Converters Installation and User Guide 10/02 Calculating Segment Distances Power Budget Calculations for Fiber Media14E-SSC Magnum14E Media Converters Installation and User Guide 10/02 Magnum14E Media Converters Installation and User Guide 10/02 + Y% 100% Media Distance Formula for Magnum 14E, full-duplexConnectivity between 100BASE-TX Magnum14E Media Converters Installation and User Guide 10/02 Collision Domain PDV Calculations Segment Distances, Half-duplex modeCollision Domain Diameter Media Type 2a Worst case round-trip delay for Fast Ethernet mediaWorst case delays taken from Ieee Std 802.3u-1995 Rules-of-thumb Collision Domain Calculations Magnum14E Media Converters Installation and User Guide 10/02 Magnum14E Media Converters Installation and User Guide 10/02 Magnum14E Media Converters Installation and User Guide 10/02 Connecting Twisted Pair RJ-45 standard Connecting Fast Ethernet MediaMagnum14E Media Converters Installation and User Guide 10/02 Magnum14E Media Converters Installation and User Guide 10/02 Magnum14E Media Converters Installation and User Guide 10/02 Operation Power Requirements, Power Supply TypesRX/ACT Up-Link or Cross-over Switch On the RJ-45 port Magnum14E Media Converters Installation and User Guide 10/02 Magnum14E Media Converters Installation and User Guide 10/02 End view Standard Link Pass-Through feature in 14E Magnum14E Media Converters Installation and User Guide 10/02 Troubleshooting Before Calling for Assistance When Calling for Assistance Return Material Authorization RMA Procedure No Problem Found Shipping and Packaging Information Appendix a Warranty Information