Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread John Laban
Guys, Making your fibre choice now is a little more problematical than it was last year. Its interesting to see what the hyper scale data centres are now doing and how the new 100G "lite" 500m SM duplex costs have been slashed by x10 through some smart re-engineering of the 10km 100G SM

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread Oliver Elliott
MTP is generally only available in OM3 and OM4 in my experience, never seen them in singlemode. We buy them from swalecomponents.com (Siemon branded). On 22 August 2016 at 22:09, Charlie Boisseau wrote: > > On 22 Aug 2016, at 20:56, Phil Bartlett

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread James Blessing
On 23 August 2016 at 12:59, Nick Hilliard wrote: > Tom Hill wrote: > > Answer: because the "short reach" optics are cheaper. But why do they > > exist if the "long reach" ones work over short distances? > > this comes down to whether SMF transceivers are inherently more >

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread Nick Hilliard
Tom Hill wrote: > Answer: because the "short reach" optics are cheaper. But why do they > exist if the "long reach" ones work over short distances? this comes down to whether SMF transceivers are inherently more expensive than MMF, or whether they're more expensive because they're produced in

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread Tom Hill
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 23/08/16 12:34, a.l.m.bu...@lboro.ac.uk wrote: > ...we have SM too - how will installing SM have helped? the short > range optics are MM. dont work with SM. 10GBASE-LR works over 1m of SM, and probably OM3/OM4, too. So why buy two types of

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread A . L . M . Buxey
Hi, > When you have to replace your OM1/OM2 with OM3 and then OM4 as you > move to higher speeds you might as well have installed SM originally ...we have SM too - how will installing SM have helped? the short range optics are MM. dont work with SM. alan

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread Brandon Butterworth
On Tue Aug 23, 2016 at 10:35:10AM +, a.l.m.bu...@lboro.ac.uk wrote: > Hi, > > > Only used them SM, never used them MM. MM is old junk, people should > > multimode is used for 10G and 40G short range optics for a start.. Missing the point, I didn't say it's not used, I said stop buying

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread Paul Cairney
On 23/08/16 12:04, Rob Evans wrote: >> I seem to recall a large academic network having saved over a million pounds >> by >> using MMF optics purely for links between their packet and optical platforms >> that would typically be in adjacent racks, although that may have been a few >> years ago

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread Rob Evans
> I seem to recall a large academic network having saved over a million pounds > by > using MMF optics purely for links between their packet and optical platforms > that would typically be in adjacent racks, although that may have been a few > years ago and suffering early adopter pricing for

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread Paul Cairney
On 23/08/16 11:35, a.l.m.bu...@lboro.ac.uk wrote: > Hi, > >> Only used them SM, never used them MM. MM is old junk, people should > > multimode is used for 10G and 40G short range optics for a start.. > I seem to recall a large academic network having saved over a million pounds by using

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread A . L . M . Buxey
Hi, > Only used them SM, never used them MM. MM is old junk, people should multimode is used for 10G and 40G short range optics for a start.. alan

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread Brandon Butterworth
> > MTP is generally only available in OM3 and OM4 in my experience, > > never seen them in singlemode Only used them SM, never used them MM. MM is old junk, people should stop buying it then they won't be able to charge the slight (or huge if you by Cisco/etc branded) premium for proper SM

Re: [uknof] MTP Single Mode cables - Wanted

2016-08-23 Thread Charlie Boisseau
> On 23 Aug 2016, at 08:56, Oliver Elliott wrote: > MTP is generally only available in OM3 and OM4 in my experience, never seen > them in singlemode. We buy them from swalecomponents.com (Siemon branded). We use MTP with singlemode regularly for bulk DC