+ Post New Thread
Results 1 to 12 of 12
Wired Networks Thread, HP 10G SFP+ Direct Attach Cable in Technical; We are looking to buy a few 7 metre HP 10G SFP+ Direct Attach Cables. One thing we are confused ...
  1. #1

    Join Date
    May 2007
    Location
    Kent
    Posts
    125
    Thank Post
    39
    Thanked 11 Times in 10 Posts
    Rep Power
    28

    HP 10G SFP+ Direct Attach Cable

    We are looking to buy a few 7 metre HP 10G SFP+ Direct Attach Cables.

    One thing we are confused about is the mention of X240 or X242. We have no idea what this means, and there is nothing on the internet about this that I can find. Can anyone tell me the difference. The switch we are using is a HP E5412 so we want the cables to be compatible. Module is a J9538A.

    Any help appreciated. Thanks.

  2. #2

    localzuk's Avatar
    Join Date
    Dec 2006
    Location
    Minehead
    Posts
    17,879
    Thank Post
    518
    Thanked 2,486 Times in 1,928 Posts
    Blog Entries
    24
    Rep Power
    838
    The only difference I've found between them is the thickness of the cable itself, and the "pull release" clip is mounted differently (one on top, the other on the bottom).

  3. Thanks to localzuk from:

    mitchell1981 (16th July 2014)

  4. #3

    Oaktech's Avatar
    Join Date
    Jul 2011
    Location
    Bournemouth
    Posts
    2,840
    Thank Post
    784
    Thanked 552 Times in 432 Posts
    Rep Power
    261
    As far as I can tell, as long as the OM number is correct for the speed you need to run it at (OM3, OM4), and the connection is correct (lc) everything else is unimportant?

  5. Thanks to Oaktech from:

    mitchell1981 (16th July 2014)

  6. #4

    localzuk's Avatar
    Join Date
    Dec 2006
    Location
    Minehead
    Posts
    17,879
    Thank Post
    518
    Thanked 2,486 Times in 1,928 Posts
    Blog Entries
    24
    Rep Power
    838
    Quote Originally Posted by Oaktech View Post
    As far as I can tell, as long as the OM number is correct for the speed you need to run it at (OM3, OM4), and the connection is correct (lc) everything else is unimportant?
    Direct attach cables are copper. They don't have an OM number.

  7. Thanks to localzuk from:

    mitchell1981 (16th July 2014)

  8. #5

    Oaktech's Avatar
    Join Date
    Jul 2011
    Location
    Bournemouth
    Posts
    2,840
    Thank Post
    784
    Thanked 552 Times in 432 Posts
    Rep Power
    261
    Quote Originally Posted by localzuk View Post
    Direct attach cables are copper. They don't have an OM number.
    My Bad...

  9. #6

    m25man's Avatar
    Join Date
    Oct 2005
    Location
    Romford, Essex
    Posts
    1,635
    Thank Post
    49
    Thanked 463 Times in 338 Posts
    Rep Power
    140
    X242s work perfectly with the 54xx

  10. Thanks to m25man from:

    mitchell1981 (16th July 2014)

  11. #7

    Join Date
    May 2007
    Location
    Kent
    Posts
    125
    Thank Post
    39
    Thanked 11 Times in 10 Posts
    Rep Power
    28
    Great. Thanks for the replies. I will go ahead and get the x242 version.

  12. #8
    Jasbo's Avatar
    Join Date
    Mar 2014
    Location
    West Sussex
    Posts
    148
    Thank Post
    12
    Thanked 20 Times in 20 Posts
    Rep Power
    5
    Out of interest, what are you plugging them into, I'm presuming server nics? Would be interesting to know what type etc

  13. #9

    Join Date
    Jun 2011
    Posts
    110
    Thank Post
    0
    Thanked 15 Times in 15 Posts
    Rep Power
    19
    I bought 50 pieces of 10GBase SR SFP+ optics for 39$ each (plus shipping) shipped directly from China recently after I read about the vendor on webhostingtalk forum. So instead of buying HP DACīs I buy compatible optics...

  14. #10

    localzuk's Avatar
    Join Date
    Dec 2006
    Location
    Minehead
    Posts
    17,879
    Thank Post
    518
    Thanked 2,486 Times in 1,928 Posts
    Blog Entries
    24
    Rep Power
    838
    As mentioned earlier, this thread is about copper direct attach cables, not optical.

  15. #11

    Join Date
    Jun 2011
    Posts
    110
    Thank Post
    0
    Thanked 15 Times in 15 Posts
    Rep Power
    19
    Well, indeed. But why did/do we buy DAC? Only it is cheaper than optics. 2 pieces of chinese optices + 10m OM3 fiber cable is cheaper than HP X242...

  16. #12

    localzuk's Avatar
    Join Date
    Dec 2006
    Location
    Minehead
    Posts
    17,879
    Thank Post
    518
    Thanked 2,486 Times in 1,928 Posts
    Blog Entries
    24
    Rep Power
    838
    Quote Originally Posted by snoerre View Post
    Well, indeed. But why did/do we buy DAC? Only it is cheaper than optics. 2 pieces of chinese optices + 10m OM3 fiber cable is cheaper than HP X242...
    Also, channelling fibre optics between the back of a server to a switch at the front of a cabinet is more fiddly, and fibre optical cable is not suited to the job unless it is armoured or if the devices are in separate cabinets. So, copper is better suited to the job.

SHARE:
+ Post New Thread

Similar Threads

  1. HP A5500EI SFP ARP Rate Limit
    By ccc in forum Wired Networks
    Replies: 4
    Last Post: 3rd November 2013, 04:58 PM
  2. QNAP/Synology direct attached backup
    By Paid_Peanuts in forum How do you do....it?
    Replies: 10
    Last Post: 6th March 2013, 02:55 PM
  3. Passthrough power cable connectors for HP switch
    By cookie_monster in forum Wireless Networks
    Replies: 4
    Last Post: 12th April 2010, 10:05 PM
  4. hp Switches and SFP compatibility?
    By SYNACK in forum Wireless Networks
    Replies: 15
    Last Post: 12th March 2009, 10:59 AM
  5. HP 2510-24 stack... how to cable?
    By gshaw in forum Wireless Networks
    Replies: 5
    Last Post: 21st April 2008, 03:30 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •