When someone refers to "4-core" fibre how does that relate to the number of cables?
Is it four cables, i.e. two pairs (one transmit and one receive in each?)
That's right. Although people is this group will shudder at the termQuote:>When someone refers to "4-core" fibre how does that relate to the number of
>Is it four cables, i.e. two pairs (one transmit and one receive in each?)
Fundamentalism is fundamentally wrong.
4 core means 4 individual fiber optic glass strands under one common sheath.Quote:> When someone refers to "4-core" fibre how does that relate to the number of cables?
> Is it four cables, i.e. two pairs (one transmit and one receive in each?)
As a general rule, fiber optic cable is placed into service in pairs,
meaning 2 cores (strands) are required for each equipment to equipment
Macy M. Hallock, Jr. - APK Net - Tel:216.241.7166 - Fax:216.241.7522
The ethernet and cabling FAQs don't appear to have any 100Mb/s ethernet
info in them yet, so I guess I have to ask:
We are installing a 100Mb/sec ethernet interface in a Cisco 7000. Our
original plan was to run that into a 100baseT hub and hook some servers
up to it. What we're also interested in doing, however, is extending a
branch off that hub over fiber to another building, and running another
100baseT hub in that location. (The exact distance is unknown right
now -- something less than 2km; there is a functional 10Mb/s ethernet
going over fiber between these sites right now.)
Is that possible?
What kinds of physical distance limitations are there for 100Mb/s
ethernet over fiber (100baseF?).
Can anyone comment (responses from hardware sales people appreciated as
well) on the type of equipment necessary to provision this? Our
preference would be two eight or sixteen port 100baseT hubs with fiber
connectors (FOIRL?), one for each building. The physical distance
involved at each end would be negligible (ie, 2 meter cat5 cables
patched to a handful of workstations on each end).
The only pieces of this equation that have already been purchased are
the Cisco 100Mb/sec ethernet interface, and some Sbus 100baseT cards for
the Suns that will sit on this net. Everything else is open to
Email responses, please.
13. Fiber Question