| Title: | FDDI - The Next Generation |
| Moderator: | NETCAD::STEFANI |
| Created: | Thu Apr 27 1989 |
| Last Modified: | Thu Jun 05 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 2259 |
| Total number of notes: | 8590 |
The distance limitation for thinwire is 100meters between the concentrator and the controller. Can that 100meters be made up of more than 1 segement ? (ie 2 45meter segments joined with a barrel connector)? If so, how do the barrel connectors reduce the maximum distance/loss budget ? Thanks, Rob
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 442.1 | Thinwire is 180m... | KYOA::KOCH | It never hurts to ask... | Fri Jan 10 1992 17:16 | 4 |
I think you are confused. Thinwire is 180m max. Twisted-pair is 100m.
Thinwire is made up of multiple segments and can be barrelled
together...
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| 442.2 | SAAR::B_GOODWIN | Time is an illusion... | Fri Jan 10 1992 18:23 | 19 | |
> I think you are confused. Thinwire is 180m max. Twisted-pair is 100m. It is only 100m for FDDI over Copper for both ThinWire and Twisted-pair. I hate the fact that we use the same terminology for FDDI over Copper and 10base2, ie ThinWire. Although the electrical specs are the same, don't confuse the two. The book states: Verify that each cableplant meets the follwoing critical parameters: o The link has a maximum of two patch cables: a crossconnect cable and a non-spliced, behind-the-wall cable. o The cable muxt be continuous, without any taps or junctions. This seems to say you can't have any barrel connectors. But, I would think if you had good quality cables and put a TDR to them and made sure you stayed within the specs in Appendix A of the ThinWire and Shieled Twisted-pair Option Card Install manual, it should work. | |||||
| 442.3 | KYOA::KOCH | It never hurts to ask... | Sat Jan 11 1992 10:02 | 2 | |
Gee, I feel stupid, I forgot my context (FDDI notes file). It was one
of those days...
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