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