| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 277.1 | Pull both! | OTOO01::WATKISS | The BLeading Edge of Technology! | Tue Jun 11 1991 16:15 | 11 |
| Yes.
However, when you look at the individual fiber cost versus the cost of
installing the cable plant he will still be ahead pulling in a cable
that has both multimode and single mode fibers. Terminate the multimode
today and leave the single mode dark until he needs it. This will incur
a relatively small incremental cost for the migration capability.
Regards,
Terry
|
| 277.2 | Another option | LARVAE::HARVEY | Baldly going into the unknown... | Wed Jun 12 1991 09:27 | 25 |
|
Not knowing the current (if any) investment in Fibre Ethernet
components - like Chipcom etc. - this may be wide of the mark !
To save buying (say) Chipcom fibre products now and FDDI later why
not consider/propose the use of FDDI as a backbone between the 2
sites Ethernets.....
ie. Ethernet -> 10/100 Bridge -> Concentrator -> 6 Km Single Mode
Fibre -> Concentrator -> 10/100 Bridge -> Ethernet
This XLAN would support the mode of (Ethernet) operation the
customer wants to maintain for a while and provide a ready-made path
for full FDDI usage later with little or no wastage of
kit/investment.
It just occurred to me that the Ethernet/FDDI Bridges recently
announced capability to act as Dual Attach Stations may allow for
the Concentrators to be deferred to a later date - saving yet more !
I'd better stop now before I kill the sale altogether huh ?! ;-}
Hope this helps
Rog
|
| 277.3 | ODS MMF-SMF converter boxes. | MADMXX::C_OUIMETTE | Wampeters and Foma | Wed Jun 19 1991 09:05 | 10 |
| One more possibility... I've got a customer using a MMF to SMF
converter box from ODS to connect 2 F.O. DEBAMs over SMF. Not supported
by DEC (I don't believe that ODS products are listed in the VES book,
but I could be wrong), but it works. I believe there's been some
discussion of this in the LB100 conference, take a peek in there for
more info on ODS. You would need to price it out & compare it against
pulling dual fibers, as suggested in .1...
chuck
|