| 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 |
Hello,
I'm looking into the possibilities of placing an FDDI interface in
a BA213/BA430 box and am having some difficulties with the mechanics.
Specifications, I have been able to gather so far, place the limit on bend
radius for the cable itself at 10cm (about 4 inches). Unfortunately,
there is only about 2 inches of space from the edge of the board to the
inside of the cover. Cabling, between modules, restrict available
board edge space to about 3 inches and eliminate the possibility of an
integral handle. Basically, I am left with trying to connect an FDDI
cable with two inches of space to make a 90 degreee bend.
Has anyone heard of connectors that make angled connections (90 degrees
would be perfect)?
Any other solutions that have worked in the past?
Thanks,
Bill
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 84.1 | vertical thinking ? | COMICS::WOODWARD | Smile! | Tue Jul 03 1990 10:03 | 9 |
This may be silly but ...
Could the connector on the module be mounted vertically, so the FDDI
connector plugs 'up' into it ?
Steve
(an immediate problem may be that the cable can only be connected/dis-
connected with the module pulled out from the backplane)
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| 84.2 | Seen in a parallel market space: | AUNTB::REED | John Reed @CBO - DTN:367-6463 - NWSS | Tue Jul 03 1990 10:28 | 14 |
The fiber optic connector on a "Video-Mux" product that I saw recently
had the LED's and receptors located in the geographical center of the
logic module. The connectors were ST's, and the PC board layout
allowed for the fiber jumpers to route between the chips out to the
board edges with strategically placed punchouts for ty-wrap anchors.
Inconvenient design, in my opinion, from the maintenance standpoint, but
workable in a limited space, perhaps OK, if the module were on top, and not
sandwiched between others. A guarantee that you won't get, when
designing for a BA-box... Remember the 11/70 ribbon cabling, or the UDA50
SDI connectors.
JR
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| 84.3 | 3/4 inch Diameter | OTOA01::WATKISS | The BLeading Edge of Technology! | Fri Aug 10 1990 11:59 | 8 |
Bend radius is dependent on cable construction and loss specifications.
I have a coiled fibre optic patch cable with a coil diameter of
3/4 inch (radius of 3/8 inch). How tight do you want to go? Contact
me by mail if you want further details.
Regards,
Terry
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