And the random SFP I tried a few years ago actually worked perfectly
fine by the way. The only difference was the Compact would toss alarms
about it on a regularly schedule. So apparently you can use any SFP as
long as you're willing to ignore the alarms.
-Adam
On 7/27/2018 1:32 PM, SmarterBroadband wrote:
Hi Adam
Telrad show two transceivers for Compacts on their Zendesk site. I think
this one is Single mode.
Finisar FTLF1321P1xTL
I have asked FS.com if they have a compatible module.
Adam
-----Original Message-----
From: AF [mailto:[email protected]] On Behalf Of Adam Moffett
Sent: Thursday, July 26, 2018 3:19 PM
To: [email protected]
Subject: Re: [AFMUG] Tower Fiber
On 7/26/2018 5:56 PM, Seth Mattinen wrote:
On 7/26/18 2:50 PM, Mike Hammett wrote:
Save yourself the hassle and never use multimode for anything.
Multimode is always a mistake at some point in its lifetime.
Singlemode is forever.
Single mode is better in all cases.
The only reason for multimode was that the the transmitter for single mode is a
laser and lasers were expensive. Multimode uses LED transmitters which were
cheaper. VCSEL Lasers turned that upside down and single mode is the cheaper
one now. The fiber itself costs about the same.
There are always exceptions. Last I knew the only "approved" SFP for a Telrad
Compact was a multimode one. The device will toss alarms if you put in any other SFP
module.
....and I'll grant you that I last tried a 3rd party SFP about 2 years ago, so this
could have changed, but it was definitely true in 2015 & 2016. So all of our
Compacts have a multimode fiber cable. Cest La Vie.
It was also the case that SFPs with industrial temperature spec were cheaper in
multimode. I'm not sure if that's still true, but it was for awhile.
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