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Thread: Fiber Networking

  1. #1
    Member astro_boy's Avatar
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    Default Fiber Networking

    Any one on here done much in the way of networking with fiber?
    I got a few issues that I would like to ask about.



Look Here ->
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    Senior Member cwispy's Avatar
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    What are you wanting to know about?
    What would you do if your server was stolen or failed beyond repair?
    http://www.2000cn.com.au/shadowprotect.html

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    Member astro_boy's Avatar
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    Default

    What is the difference between a multimode cable and just using two single cables?
    I guess you would av eto cross them over.

    I'm trying to get two pcs connected to each other but the network adapters just show cable unplugged, I've run a diagnostic on the card and it says its fine but when the cable is in there is no lights on the back.
    This is why i think the cables might be the issue, but there brand new.

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    Senior Member cwispy's Avatar
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    It is most likely going to be a multimode as singlemode is typically used for long runs. It will depend on the actual cards however as what type of cable it supports. You may also need to specifically tell one card to go into cross-over mode to allow the tx/rx to match up, but I know that some fibre cards do not allow connection to another card, they must be connected to a switch or other terminating device. What are the models of the cards your using?
    What would you do if your server was stolen or failed beyond repair?
    http://www.2000cn.com.au/shadowprotect.html

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    Default

    Alloy 1440SC on WinXP, 1 card in each comp.

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    Senior Member cwispy's Avatar
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    If that is the SC multimode version of the card, which it appears to be from the product list, make sure you have the cables plugged in the right way round. From TX on one card to RX on the other and vice versa for the other connector.
    What would you do if your server was stolen or failed beyond repair?
    http://www.2000cn.com.au/shadowprotect.html

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    Junior Member bit_pit's Avatar
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    Fibre is actually pretty forgiving, and most is visible light (at least on the low/mid end stuff) so it is easy to see the "signal".
    Light fibre goes to dark socket, light socket goes to dark fibre etc..

    I've even used the wrong connectors when I ordered the incorrect patch cables one time, darned thing just ran with no problems..
    Comfortably numb...
    And NO, Google is NOT my friend...

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    Posting on behalf of astro_boy;

    I spoke to him last night trying to sort out the problem and he mentioned that the cards aren't emitting any visible light from the fibre sockets.

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    Senior Member cwispy's Avatar
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    That would suggest that the drivers are wrong or not working so the ports are not enabled, or of course that they could be faulty. I stopped using Alloy years ago because they had such a high failure rate.
    What would you do if your server was stolen or failed beyond repair?
    http://www.2000cn.com.au/shadowprotect.html

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    Member astro_boy's Avatar
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    Yes it is a sc card and I have the cables 'crossed' over.

    I've tried about 4 different versions of the driver but all don't do much.

    I found a diagnostic program that is telling me that the card is working fine (I can see lights on card light up)
    But the program says that there is no cable link.
    and I cannot see any light coming out of the cards ports as well.

    umm... I don't have many other ideas, I don't know how both of the cards can be dead.

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    Junior Member bit_pit's Avatar
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    If the diagnostic lights up the laser diode, and reports all ok then presumably the hardware is OK and the card is being accessed.
    What Program is saying there is no cable link?
    Comfortably numb...
    And NO, Google is NOT my friend...

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    Member astro_boy's Avatar
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    A program called 'NICSET'
    came with the drivers.

    Do you have any other programs i could try ?
    Is there some thing you have to activate to get it talking
    or should it all be plug and go like ethernet?
    My pc doesnt like me pluggin/unplugging the fiber
    and sometimes it crashes.

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    Default

    This is the cable i'm using.



    only 15m.

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    Junior Member bit_pit's Avatar
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    I'm not familiar with Nicset, but I would have thought the Cards would work natively under Windows (I am assuming you are using Windows).
    The Hardware layer should be handled by the card driver and the OS should see it as just another NIC card.
    The PC crashing when you unplug the fibre cable is a clue, it suggests the card is being accessed (otherwise how would it know you pulled the patch?)
    Can you remove Nicset and try native OS drivers?
    Comfortably numb...
    And NO, Google is NOT my friend...

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    Exactly what i though when i pulled them out.
    I have tryed with and with out the netset program but same issue.

    Windows xp does detect it as a normal network connection,
    but says 'Network cable is unplugged'.

    There is a few settings in the properties of the card, but im really unsure about them? Maybe i need to turn something on ?
    Here is a screen shot;
    Nicset on the Right side.
    (Yes i know nicset has no ipaddress, but i have set one and i think its because the network cable is 'unplugged'.)
    Last edited by astro_boy; 27-02-08 at 07:56 PM.

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    Junior Member bit_pit's Avatar
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    It reeks of a driver problem.
    The "cable unplugged" is (sorry to state the obvious) a physical layer thing, so all your issues relate to physical layer. At least so far.
    I would ....
    1. Remove all Nicset drivers/software, totally, preferrably edit the registry to make sure nothing remains.
    2. Remove hardware via Device manager
    3. Reboot and let Windows find it again AND search the internet for drivers.
    4. If Windows cannot find drivers then search drivers.com etc.

    Past that I cannot say...not using Vista?
    Comfortably numb...
    And NO, Google is NOT my friend...

  • #17
    Senior Member cwispy's Avatar
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    What happens if you actually configure IP addresses on each computer?
    What would you do if your server was stolen or failed beyond repair?
    http://www.2000cn.com.au/shadowprotect.html

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    Member astro_boy's Avatar
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    Quote Originally Posted by bit_pit View Post
    It reeks of a driver problem.
    The "cable unplugged" is (sorry to state the obvious) a physical layer thing, so all your issues relate to physical layer. At least so far.
    I would ....
    1. Remove all Nicset drivers/software, totally, preferrably edit the registry to make sure nothing remains.
    2. Remove hardware via Device manager
    3. Reboot and let Windows find it again AND search the internet for drivers.
    4. If Windows cannot find drivers then search drivers.com etc.

    Past that I cannot say...not using Vista?
    Im running windows xp pro on both pcs.

    I did what you suggested, windows couldn't come up with
    any drivers so i used the latest off Alloy site and still looks the
    same as before.

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    Quote Originally Posted by cwispy View Post
    What happens if you actually configure IP addresses on each computer?
    the same thing 'cable is unplugged'

    can you comfirm the cable i posted above is right for the job,
    or could it be too small or something?
    I really think that is the problem now, the cards look as though its fine.

  • #20
    Senior Member cwispy's Avatar
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    Did the card come with any docs which state what size fibre it wants? There are a few different size cores which could be your problem. I cant see any docs on the website or in the driver download file which states what size core it needs.
    What would you do if your server was stolen or failed beyond repair?
    http://www.2000cn.com.au/shadowprotect.html

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