[SI-LIST] Re: Fiber transceiver assemblies, fully assembled?
- From: "Ecklund, Tim" <ecklundt@xxxxxxxxxxx>
- To: <kalevi@xxxxxxxxxx>, <steven@xxxxxxxxxxxxxxxxxxxx>, "SI-List" <si-list@xxxxxxxxxxxxx>
- Date: Fri, 17 Nov 2006 09:14:32 -0800
Steven,
These guys have a nice solution for slow communication links (40kbps)
over fiber. They are relatively inexpensive and work quite well:
http://www.selinc.com/focoms.htm
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of Kai Keskinen
Sent: Thursday, November 16, 2006 2:29 PM
To: steven@xxxxxxxxxxxxxxxxxxxx; SI-List
Subject: [SI-LIST] Re: Fiber transceiver assemblies, fully assembled?
The Small Form Factor Pluggable (SFP) on a simple PCB with some jelly
bean
components does the job for a point to point link. You need one at each
end.
If you need to increase the range, you get the appropriate SFP and the
right
fibre type. The optical test equipment can be leased for the time you
need
it.
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Steven Kan
Sent: Thursday, November 16, 2006 10:01 AM
To: SI-List
Subject: [SI-LIST] Fiber transceiver assemblies, fully assembled?
We have had multiple requests from our customers for a simple
ECL-to-fiber
transceiver box of some kind, e.g. a finished product with SMA ECL I/Os
on
one side and a fiber socket on the other, AC wall wart, enclosure,
decal,
etc.
They could lay out a board for a standard commercial transceiver, or buy
evaluation boards from the transceiver mfrs, but they typically just
want to
buy an off-the-shelf, finished product that does the job.
The box wouldn't have to have any smarts to it; it would just be a
transceiver box. All the encoding, clock recovery, etc. would be done at
the
electrical level.
Do products like this exist? We have a wide variety of just such
solutions
for translating to/from ECL, PECL, LVDS, TTL, etc., but nothing with
optical
links. We could try making one with standard parts, but we don't have
the
optical test equipment necessary to test and support such a device
(yet).
Applications are typically a few hundred Mbps to a few Gbps, either for
isolating two stations from each other or transmitting over long
distances.
For example I had one such request for LVDS<-->fiber<-->LVDS over a
distance
of 20 feet because the two stations had a potential between the two of a
few
kV :)
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