| Title: | DEChub/HUBwatch/PROBEwatch CONFERENCE |
| Notice: | Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7 |
| Moderator: | NETCAD::COLELLA DT |
| Created: | Wed Nov 13 1991 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 4455 |
| Total number of notes: | 16761 |
Hello,
We are selling DEFMR/DEFAR modules to a costumer that will use his
existent fiber cables 50/125nm. I have to answre him the following
questions :
- What will be the maximum lenght of cable ?
- What is the Optical Power Budget of these products ? (to calculate
the max number of splices/panels used)
Thanks in advance,
Carijo'
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 177.1 | I have the same problem... | ROMSLS::MASSARO | Franco Massaro | Mon Sep 26 1994 07:49 | 10 |
hello,
could somebody answer to the .0, please?
My problem is on a FDDI connection between a
DECconcentrator900MX and a DECbridge900MX
Many thanks
Francesco
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| 177.2 | SEE NOTE 1226 | VAXRIO::ROLF | Vaporware Design Specialist | Tue Sep 27 1994 10:32 | 1 |
| 177.3 | 50 micron has 6 dB FDDI budget | NETCAD::KIRK | tis a gift to be simple | Fri Sep 30 1994 09:37 | 9 |
For FDDI products, 50/125 micron optical fibers will have 5 dB LESS
power budget than the 62.5/125 micron optical fibers. This is due to
the smaller core diameter and lower numerical aperture. Since the
ANSI PMD set a requirement for 11 dB budget for 62.5/125 fiber,
the 50/125 fiber will have a 6 dB optical power budget.
Dick Kirk
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