[cisco-voip] Cisco VG224 RJ-21 Cable ?

Sat Jan 5 18:34:16 EST 2008

Don't worry about it.

66 is a type of punch down, as is 110 and BIX. Each has their advantages, 66 is really old and is still used in the telecom industry (Bells, etc) and as far as I know 110 was invented so companies didn't have to pay royalties to NORDX or whomever owns the BIX patent/trademark. As far as block size is concerned, each system has their own standar sizes.
  66 http://en.wikipedia.org/wiki/66_block
  BIX http://www.dotfrom.com/image/32/6717/P7040008.JPG
  110 http://www.smarthomepro.com/images/865150_punch_step2_big.gif
I mention 25 pair, because that is a standard size in telecom wiring, BIX blocks are also 25 pairs. The RJ21 is also 25 pair, the 25th pair is not used with the VG224.

Having your VG224s in a central location is the way to go. Power, facilities, etc. make more sense that way.

In my opinion, I would go with cross-connects as needed. Create another punchdown with your VG224 pairs and then go from there.

--------------------------------------------------------------------------------
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"Life expectancy would grow by leaps and bounds if green vegetables smelled as good as bacon."
Doug Larson

  ----- Original Message ----- 
  From: d4rk f1br 
  To: Lelio Fulgenzi 
  Cc: cisco-voip at puck.nether.net 
  Sent: Saturday, January 05, 2008 5:32 PM
  Subject: Re: [cisco-voip] Cisco VG224 RJ-21 Cable ?

  Well I guess I am about to admit just how little I know about this stuff.  You say 25 pair, but I thought the VG224 only supported 24 lines which would mean 24 pair right?

  As for the block sizes I am not sure, does a 66 block represent 66 pair or 66 individual wires so only 33 pair?

  What I have here at this building is three access closets.  In each closet there is a panel labelled (100 pair cross connect) which has 50 RJ45 outlets if you will. This 100 pair cross connect panel then goes up to the server room and terminates at what I believe is a 110 block. 

  The point of this is probably obvious to anyone experienced in this stuff.  Each desk has three Cat6 runs.  The three runs terminate in the access closet as well of course.  I have two choices at this point, I can use a patch cord to patch into the switch or into one of these cross connect ports. 

  The cross connect ports are for either fax machines or the call center phones which are legacy pbx phones.

  So then up in the server room at the other side of the cross connect we have to jumper that particular pair to either the PBX or to what ever it is I need to get it connected to the VG224.

  I have two VG224's.  I wish I had three now because then I would just put one VG224 in each wiring closet and have the RJ21 terminate into a panel that can take RJ45 patch cables as well.  This would have allowed me to simply patch from the port going to the desk, to a port on the panel connected to the RJ21 and thus the VG224 and avoid this whole cross connect crap.  But since I only have two VG224's and three closets I have to centrally located the VG224's and utilize this cross connect from the closets. 

  I just don't know alot about wiring and stuff.  Sad thing is I have done it all before as needed.  Usually just emergency basis type stuff when you needed something in a pinch and couldn't get the contractor or someone onsite fast enough.  I have never done any of it completely from scratch though so I don't claim to be an expert on any of it. 

  On Jan 5, 2008 12:47 PM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

    What exactly are you looking for? 66 block? BIX block? 110?

    Punching down 25 pair onto one of your existing blocks and then cross connecting shouldn't take that much time.

    You could probably buy a block with an rj21 connector so you buy a cable with both ends completed, but then you have to be exact on your measurements.
    --------------------------------------------------------------------------------
    Lelio Fulgenzi, B.A.
    Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
    (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    "Life expectancy would grow by leaps and bounds if green vegetables smelled as good as bacon."
    Doug Larson

      ----- Original Message ----- 
      From: d4rk f1br 
      To: cisco-voip at puck.nether.net 
      Sent: Saturday, January 05, 2008 1:26 PM
      Subject: [cisco-voip] Cisco VG224 RJ-21 Cable ?

      Anyone know of a source which sales the RJ-21 cable for a VG224 that is already terminated to a block?

      Just opened up my VG224's to start setting them up at the new building and realized it did not come with the RJ-21 cables.  And I am suppose to have this up before next weekend so I need to save time as much as possible with all that I have to do between now and then.  :-( 

      I have googled myself to sleep trying to find something that is already terminated to a block.  Looks like I am going to have to jumper from one block were the ports for faxes terminate to another block which will be connected to the VG224 via the RJ21. 

      If anyone has ordered anything recently similiar to what I am looking for please let me know.  I need to order something ASAP.

      Thanks!

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