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Steven King
 Post subject: Cabling Standards
PostPosted: Fri Oct 26, 2012 5:45 pm 
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Hey all.

I'm surprised with the amount of difficulty I'm having finding this information. Would anyone happen to have or have a link to a good summary of the different types of network cabling used with different types of connections? Something that lists 1Gb, 10Gb, and 40Gb types of connections, with max distances, types of trancievers, etc?

I've put together an excel spreadsheet myself, but I was hoping to find a "Here's an official table of all of them", as I've found conflicting information on different websites.

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javin
 Post subject: Re: Cabling Standards
PostPosted: Fri Oct 26, 2012 5:57 pm 
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Not sure if there is anything here you are looking for...
http://blog.siemon.com/standards/

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bertschs
 Post subject: Re: Cabling Standards
PostPosted: Fri Oct 26, 2012 6:48 pm 
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Well there's nothing more authoritative than 802.3. If you have a good summary with some conflicting points, you could look to the official standard to see what it has to say for the few conflicting items. Then share your own summary with us. ;)

Many of the 802 standards are a free download. The rest are no more than $5.
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Steven King
 Post subject: Re: Cabling Standards
PostPosted: Fri Oct 26, 2012 10:08 pm 
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I'll post what I have so far on Monday.

I'm sure somebody out there has done a simple high-level summary or knows where one is! :P

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routerdork
 Post subject: Re: Cabling Standards
PostPosted: Sat Oct 27, 2012 5:55 pm 
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I'd have to check but I know we did one for sales. Too many contracts getting written up for GBIC's when they shoulda been SFP's :)
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Steven King
 Post subject: Re: Cabling Standards
PostPosted: Mon Oct 29, 2012 10:47 am 
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Hmmm. Can't upload an xlsx.. but here's what I have so far..

Attachment:
Capture.PNG
Capture.PNG [ 29.83 KiB | Viewed 753 times ]

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javin
 Post subject: Re: Cabling Standards
PostPosted: Mon Oct 29, 2012 11:08 am 
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Steven King
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 2:49 pm 
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Here is another article I found useful to figure out compatibility and physical termination type for different Cisco 10g transceivers.

http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/compatibility/matrix/OL_6974.html

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that1guy15
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 4:33 pm 
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http://www.networkhardware.com/OpticsCheatSheet
http://www.networkworld.com/community/b ... cs-modules

Not sure if either of these go into the depth you are looking for. From what I know, the most popular options on the market right now are SFP and SFP+. before SFP became the norm Cisco used Xenpacks and X2 modules for 10GB. So you might have to get the cisco docs on those. Cisco has been shifting away from them for a while so most anything new is going to be SFP/SFP+. Your 6500/7600 series and maybe 4800 series chassis will have Xenpack and X2 cards. I think the 4900 series also has some X2 options.

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dlots
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 4:46 pm 
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I am FAR from a cabling god so someone correct me if I am wrong but you have 1000BASE-T (cat5/6/6a) (copper) with a RJ45 (copper) or an LC-connector (fiber)

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Steven King
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 4:47 pm 
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that1guy15 wrote:
http://www.networkhardware.com/OpticsCheatSheet
http://www.networkworld.com/community/b ... cs-modules

Not sure if either of these go into the depth you are looking for. From what I know, the most popular options on the market right now are SFP and SFP+. before SFP became the norm Cisco used Xenpacks and X2 modules for 10GB. So you might have to get the cisco docs on those. Cisco has been shifting away from them for a while so most anything new is going to be SFP/SFP+. Your 6500/7600 series and maybe 4800 series chassis will have Xenpack and X2 cards. I think the 4900 series also has some X2 options.



Funny you bring that up - to myself, the Cisco support team we have here, and to one of our primary DC design guy's surprise, even the 6816-10G line card for the 6500 and the Sup2T 10G uplink ports still use X2.

EDIT - this is a total hassle since SFP used LC and X2 uses SC. Now I need a mix of cables rather than just LC to LC.

EDIT #2 - Hmmm looks like they make an adapter: http://www.cisco.com/en/US/prod/collateral/modules/ps5455/data_sheet_c78-547521.html

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Steven King
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 4:56 pm 
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dlots wrote:
I am FAR from a cabling god so someone correct me if I am wrong but you have 1000BASE-T (cat5/6/6a) (copper) with a RJ45 (copper) or an LC-connector (fiber)


Yeah that doesn't look right to me either now that I'm more familiar with cabling... I dunno.. maybe a typo or something. /shrug

It was put together by a newb, so take it with a grain of salt :P

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that1guy15
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 5:16 pm 
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Steven King wrote:
that1guy15 wrote:
http://www.networkhardware.com/OpticsCheatSheet
http://www.networkworld.com/community/b ... cs-modules

Not sure if either of these go into the depth you are looking for. From what I know, the most popular options on the market right now are SFP and SFP+. before SFP became the norm Cisco used Xenpacks and X2 modules for 10GB. So you might have to get the cisco docs on those. Cisco has been shifting away from them for a while so most anything new is going to be SFP/SFP+. Your 6500/7600 series and maybe 4800 series chassis will have Xenpack and X2 cards. I think the 4900 series also has some X2 options.



Funny you bring that up - to myself, the Cisco support team we have here, and to one of our primary DC design guy's surprise, even the 6816-10G line card for the 6500 and the Sup2T 10G uplink ports still use X2.

EDIT - this is a total hassle since SFP used LC and X2 uses SC. Now I need a mix of cables rather than just LC to LC.

EDIT #2 - Hmmm looks like they make an adapter: http://www.cisco.com/en/US/prod/collateral/modules/ps5455/data_sheet_c78-547521.html


My guess would be that Cisco still gives that option so when you upgrade you can still use all the crappy X2s you bought when they were cool.

It really dosent sit right with me that you can buy and X2 adapter module so you can plug in your $2,000 SFP. Same thing with the 3750s TwinGig converter, never likes those things.

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Steven King
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 5:43 pm 
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When you say, "X2s you bought when they were cool", you're talking about the devices with X2 ports right? Not the transceivers?

The adapter is to let you plug a SFP into an X2 as you pointed out, so it seems silly to still be putting X2s on newer equipment such as the Sup2T when SFP is so popular.

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that1guy15
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 5:59 pm 
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No im talking about the transceiver. Think about how pissed everyone would be after spending all that money on X2 optics just a few years back and now not having any line cards to use them in after upgrading their current chassis.

Its just a guess but Im thinking this is why cisco keep the X2 on some cards. Who knows, it is strange though...

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Steven King
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 6:22 pm 
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that1guy15 wrote:
No im talking about the transceiver. Think about how pissed everyone would be after spending all that money on X2 optics just a few years back and now not having any line cards to use them in after upgrading their current chassis.

Its just a guess but Im thinking this is why cisco keep the X2 on some cards. Who knows, it is strange though...



Ah ok - I'm on the same page as you now.

On a separate note... I swear everyday I run into something that just makes me feel dumb.

So, is there a difference between a fiber run between two switches, and a "fiber patch cable"? Like, what is used to connect, say, two buildings?

I'm curious because I see this:
Belkin 5 Meter 10 gig LC/LC Multimode Duplex Fiber Optic Cable 50/125

And this:
Patch cable - LC/PC multi-mode (M) - LC/PC multi-mode (M) - 66 ft - fiber optic - 50 / 125 micron - aqua

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javin
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 6:32 pm 
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Steven King wrote:
that1guy15 wrote:
No im talking about the transceiver. Think about how pissed everyone would be after spending all that money on X2 optics just a few years back and now not having any line cards to use them in after upgrading their current chassis.

Its just a guess but Im thinking this is why cisco keep the X2 on some cards. Who knows, it is strange though...



Ah ok - I'm on the same page as you now.

On a separate note... I swear everyday I run into something that just makes me feel dumb.

So, is there a difference between a fiber run between two switches, and a "fiber patch cable"? Like, what is used to connect, say, two buildings?

I'm curious because I see this:
Belkin 5 Meter 10 gig LC/LC Multimode Duplex Fiber Optic Cable 50/125

And this:
Patch cable - LC/PC multi-mode (M) - LC/PC multi-mode (M) - 66 ft - fiber optic - 50 / 125 micron - aqua


Only thing I can think of is the patch cables may not have to adhear to building fire codes but anything ran in walls does.

Side note: Looking at your Spreadsheet, why is LC the only connector listed for 1000SX and LX?

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srg
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 6:34 pm 
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Steven King wrote:
that1guy15 wrote:
No im talking about the transceiver. Think about how pissed everyone would be after spending all that money on X2 optics just a few years back and now not having any line cards to use them in after upgrading their current chassis.

Its just a guess but Im thinking this is why cisco keep the X2 on some cards. Who knows, it is strange though...



Ah ok - I'm on the same page as you now.

On a separate note... I swear everyday I run into something that just makes me feel dumb.

So, is there a difference between a fiber run between two switches, and a "fiber patch cable"? Like, what is used to connect, say, two buildings?

I'm curious because I see this:
Belkin 5 Meter 10 gig LC/LC Multimode Duplex Fiber Optic Cable 50/125

And this:
Patch cable - LC/PC multi-mode (M) - LC/PC multi-mode (M) - 66 ft - fiber optic - 50 / 125 micron - aqua

They're most likely the same, different lengths. Between buildings you use a larger cable with multiple fiber pairs from a drum or whatever without connectors, and the connectors are spliced on afterwards in the ODF.

sent from phone.

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mlan
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 6:40 pm 
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Steven King wrote:
So, is there a difference between a fiber run between two switches, and a "fiber patch cable"? Like, what is used to connect, say, two buildings?

I'm curious because I see this:
Belkin 5 Meter 10 gig LC/LC Multimode Duplex Fiber Optic Cable 50/125

And this:
Patch cable - LC/PC multi-mode (M) - LC/PC multi-mode (M) - 66 ft - fiber optic - 50 / 125 micron - aqua


The cables with the PC connectors (pigtails) are typically used with a fiber patchbay, and you might see more of those with building-to-building (or floor-to-floor) runs.
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srg
 Post subject: Re: Cabling Standards
PostPosted: Wed Jan 02, 2013 6:51 pm 
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mlan wrote:
Steven King wrote:
So, is there a difference between a fiber run between two switches, and a "fiber patch cable"? Like, what is used to connect, say, two buildings?

I'm curious because I see this:
Belkin 5 Meter 10 gig LC/LC Multimode Duplex Fiber Optic Cable 50/125

And this:
Patch cable - LC/PC multi-mode (M) - LC/PC multi-mode (M) - 66 ft - fiber optic - 50 / 125 micron - aqua


The cables with the PC connectors (pigtails) are typically used with a fiber patchbay, and you might see more of those with building-to-building (or floor-to-floor) runs.

I'm guessing LC/PC means the polish style/angle, (PC, UPC, APC), not PC contractor.

sent from phone.

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