Fiber Networking - Page 2

**astro_boy** · 27-02-08, 09:07 PM

No, it just came with the card nothing else.
It says on it Alloy1440SCB.
umm... whats your suggestions for the cable anything i can try.

**cwispy** · 27-02-08, 09:14 PM

There isn't really anything you can do with the cable. Im sure that your cable is probably fine, but it just may not be the correct one for that particular card. You might have to contact Alloy support and see if they can give you the details as to cables it supports etc.

**astro_boy** · 27-02-08, 09:38 PM

I don't think there is a issue with teh cables, they are brand new.
Just nothing is going between them.
Thanks for the help I'll see what i can do.

**bit_pit** · 28-02-08, 08:11 AM

Well, if I am reading the Alloy site correctly, the 1440SCB is a multimode card.
And the patch cable site seems to indicate it is a multimode fibre, although it does mention single mode in the same table.
You could try to loop the card back on itself just to see what happens.
I am still thinking you should see red from the TX socket on each card.
I just went down and had a look at a few of my fibre capable boxes, I can see the TX signal easily.

**me_ashman** · 28-02-08, 10:28 AM

If you suspect the cable put a torch on the core and check the other end...no light= broken.

What colour is the patch cable? orange or yellow?

**astro_boy** · 28-02-08, 12:04 PM

humm.. Still no light coming from cards.
Did try and loop it back but nothing happend.
do you think it is possible its just a single mode fiber im using and wont work if the
cards trying to tx in multi?
or that the fiber is too small.

I put a light in the ends and could see a bit of it coming
out other end.
it is a yellow cable with green plugs.

**bit_pit** · 28-02-08, 12:28 PM

Yellow is supposed to be single mode, so yes is is possible the laser emitter will not align.
Where are you Astro? I've got a short SC MM (orange) patch I could send you to try...

**astro_boy** · 28-02-08, 08:26 PM

Bit_pit, Thanks for the offer I'm on the central coast.
But i just bought a 15m multi mode cable so i'll see how that goes!

Have you ever heard of the light from these cards being clear and not visible to the eye ?

**bit_pit** · 28-02-08, 08:32 PM

Well, the ones I have are visible, thats on recent Cisco switches ,a Dell Fibre switch and some other assorted bits and pieces.
But I guess Alloy could use non-visible. I cannot remember looking at a SM link...

Let us know how the MM cable pans out.

**astro_boy** · 06-03-08, 08:45 PM

Thanks for everyones input !

Today I got a multimode cable and it worked straight away,
so it wasn't the cards and from what i can see there is still no
light coming from the cards when i try to tx data but they do work.

This only issue now is the speeds, I'm not getting what i thought i would have which I think is due to the hardware inside the pc running a bit slow.

**bit_pit** · 07-03-08, 05:59 PM

Very good astro, I'll stick that one in memory for the future, which with me will mean forgotten tomorrow

**astro_boy** · 08-03-08, 09:12 PM

Quote:

Originally Posted by bit_pit

Very good astro, I'll stick that one in memory for the future, which with me will mean forgotten tomorrow

Hehe

**ktm200** · 09-03-08, 12:04 PM

edit
info FYI

The fibre shown on the website is single mode. What colour is your patchlead? Generic colours for fibre are :

orange 62.5 um multimode
aqua 50 um multimode
yellow 9 um singlemode

but you can order leads in any colour you wish.

General connector colour:

Green = single mode angle polish (no good for you)
blue = (usually single mode but can be multimode)
beige = multimode connector

check the writing on the cable every meter. You need a 62.5/125 um (OM1) multimode or a 50/125 um (OM3) multimode lead. If it has 9/125 um it is single mode an will not work.

Regards

ktm200

**mattl200** · 05-04-08, 09:03 PM

fyi
looking into fibre ports on cards an patch racks is not a smart idea

most cards emit light in the non visible specturm ie infared
some mostally singlemode but some multimode use laser emitters at
850 to 1560nm

and is like looking into a laser pointer but u cant see the light

chears
mat

27-02-08, 09:14 PM	#22 (permalink)
cwispy Premium Member iTrader: (12) Join Date: Jan 2008 Posts: 630	There isn't really anything you can do with the cable. Im sure that your cable is probably fine, but it just may not be the correct one for that particular card. You might have to contact Alloy support and see if they can give you the details as to cables it supports etc. __________________ Business Web, Email, SQL hosting and Online Backup services available. http://www.2000cn.com.au Wii, Xbox, Xbox 360, PS2, PS3 mods and repairs http://www.ausmodchips.com or PM me for further details

28-02-08, 08:11 AM	#24 (permalink)
bit_pit Senior Member iTrader: (1) Join Date: Jan 2008 Location: Sydney, Western Suburbs Posts: 109 Spent time on board: -	Well, if I am reading the Alloy site correctly, the 1440SCB is a multimode card. And the patch cable site seems to indicate it is a multimode fibre, although it does mention single mode in the same table. You could try to loop the card back on itself just to see what happens. I am still thinking you should see red from the TX socket on each card. I just went down and had a look at a few of my fibre capable boxes, I can see the TX signal easily. __________________ Comfortably numb... And NO, Google is NOT my friend...

28-02-08, 12:28 PM	#27 (permalink)
bit_pit Senior Member iTrader: (1) Join Date: Jan 2008 Location: Sydney, Western Suburbs Posts: 109 Spent time on board: -	Yellow is supposed to be single mode, so yes is is possible the laser emitter will not align. Where are you Astro? I've got a short SC MM (orange) patch I could send you to try... __________________ Comfortably numb... And NO, Google is NOT my friend...

28-02-08, 08:32 PM	#29 (permalink)
bit_pit Senior Member iTrader: (1) Join Date: Jan 2008 Location: Sydney, Western Suburbs Posts: 109 Spent time on board: -	Well, the ones I have are visible, thats on recent Cisco switches ,a Dell Fibre switch and some other assorted bits and pieces. But I guess Alloy could use non-visible. I cannot remember looking at a SM link... Let us know how the MM cable pans out. __________________ Comfortably numb... And NO, Google is NOT my friend...

07-03-08, 05:59 PM	#31 (permalink)
bit_pit Senior Member iTrader: (1) Join Date: Jan 2008 Location: Sydney, Western Suburbs Posts: 109 Spent time on board: -	Very good astro, I'll stick that one in memory for the future, which with me will mean forgotten tomorrow __________________ Comfortably numb... And NO, Google is NOT my friend...

27-02-08, 09:07 PM	#21 (permalink)
astro_boy Senior Member iTrader: (2) Join Date: Jan 2008 Location: Sydney Posts: 205 Spent time on board: 2 Days and 0:33:39	No, it just came with the card nothing else. It says on it Alloy1440SCB. umm... whats your suggestions for the cable anything i can try.

27-02-08, 09:38 PM	#23 (permalink)
astro_boy Senior Member iTrader: (2) Join Date: Jan 2008 Location: Sydney Posts: 205 Spent time on board: 2 Days and 0:33:39	I don't think there is a issue with teh cables, they are brand new. Just nothing is going between them. Thanks for the help I'll see what i can do.

28-02-08, 10:28 AM	#25 (permalink)
me_ashman Deregistered Confuser iTrader: (2) Join Date: Jan 2008 Posts: 205 Spent time on board: 2 Days and 8:50:59	If you suspect the cable put a torch on the core and check the other end...no light= broken. What colour is the patch cable? orange or yellow?

28-02-08, 12:04 PM	#26 (permalink)
astro_boy Senior Member iTrader: (2) Join Date: Jan 2008 Location: Sydney Posts: 205 Spent time on board: 2 Days and 0:33:39	humm.. Still no light coming from cards. Did try and loop it back but nothing happend. do you think it is possible its just a single mode fiber im using and wont work if the cards trying to tx in multi? or that the fiber is too small. I put a light in the ends and could see a bit of it coming out other end. it is a yellow cable with green plugs.

28-02-08, 08:26 PM	#28 (permalink)
astro_boy Senior Member iTrader: (2) Join Date: Jan 2008 Location: Sydney Posts: 205 Spent time on board: 2 Days and 0:33:39	Bit_pit, Thanks for the offer I'm on the central coast. But i just bought a 15m multi mode cable so i'll see how that goes! Have you ever heard of the light from these cards being clear and not visible to the eye ?

06-03-08, 08:45 PM	#30 (permalink)
astro_boy Senior Member iTrader: (2) Join Date: Jan 2008 Location: Sydney Posts: 205 Spent time on board: 2 Days and 0:33:39	Thanks for everyones input ! Today I got a multimode cable and it worked straight away, so it wasn't the cards and from what i can see there is still no light coming from the cards when i try to tx data but they do work. This only issue now is the speeds, I'm not getting what i thought i would have which I think is due to the hardware inside the pc running a bit slow.

09-03-08, 12:04 PM	#33 (permalink)
ktm200 Premium Member iTrader: (3) Join Date: Jan 2008 Posts: 82 Spent time on board: 2 Days and 21:45:36	edit info FYI The fibre shown on the website is single mode. What colour is your patchlead? Generic colours for fibre are : orange 62.5 um multimode aqua 50 um multimode yellow 9 um singlemode but you can order leads in any colour you wish. General connector colour: Green = single mode angle polish (no good for you) blue = (usually single mode but can be multimode) beige = multimode connector check the writing on the cable every meter. You need a 62.5/125 um (OM1) multimode or a 50/125 um (OM3) multimode lead. If it has 9/125 um it is single mode an will not work. Regards ktm200 Last edited by ktm200 : 09-03-08 at 12:06 PM. Reason: didn't read second page

05-04-08, 09:03 PM	#34 (permalink)
mattl200 Junior Member iTrader: (0) Join Date: Jan 2008 Posts: 2 Spent time on board: 2:29:07	fyi looking into fibre ports on cards an patch racks is not a smart idea most cards emit light in the non visible specturm ie infared some mostally singlemode but some multimode use laser emitters at 850 to 1560nm and is like looking into a laser pointer but u cant see the light chears mat

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