TEXT   72

5esscomp.txt

Guest on 30th August 2021 06:09:37 PM

  1. 5ESS-2OOO Compact Exchange Units.
  2. by hybr1d (http://hybrid.dtmf.org)
  3.  
  4.  
  5.         o Introduction
  6.         o Types of compact exchanges
  7.         o CDX exchange
  8.         o VCDX exchange
  9.         o Conclusion
  10.  
  11.  
  12. Introduction
  13. ------------
  14.  
  15. This is a very compact file, designed to be an intorduction, or primer to
  16. 5ESS local compact digital exchange units. I am wrtting this off the top of
  17. my head, so don't expect it to be very complex in technical nature. For
  18. starters I'll explain a little about the new 5ESS switches and there
  19. functions. We've all heard of the millenium bug, and it's supposid ability to
  20. take out massive networks etc. Well Lucent technologys, Bellcore (now
  21. telecord communications or somthing), aswell as lata exchange carrier
  22. providers such as MCI, AT&T, Sprint, and all the RBOC's such as SWBell, etc,
  23. all got a bit paranoid and decided to enhance to current 5ESS switching
  24. configurations to a new architecture they feel would be compatable with the
  25. millenium software and network problems. The new 5ESS-2OOO switches are all
  26. basically the same as conventional 5ESS switches, except the software parts,
  27. such as the administration control software platforms, and global title
  28. translation software etc, have been upgraded to be Y2K compatable. As well
  29. as this, the new 5ESS switches have been modified (based upon conventional
  30. 5ESS) to be easily upgraded in the future with new modules for future
  31. telecommunications developments. In other words, the new digital switches are
  32. very very very souped-up versions of 5ESS, infact, I would concider them to
  33. be one of the most versatile switches around. Now the deal with these new
  34. digital switching systems is that they can handle more and more lines, more
  35. network traffic, aswell as a very upgraded ability for general system
  36. capacity. They have also been upgraded with new security features to stop
  37. people like me from gaining access to the local administration part which
  38. is accessable via x25, the PSTN, and the net (on a 'secret' IP range).. I'm
  39. not going to go into that at the moment, thats another file.. Anyways, as I
  40. was saying, the new 5ESS-2OOO digital exchanges are like souped up 5ESS
  41. switches. Before there where people bitching about how they can get 'traced'
  42. messing around on the phone network because 5ESS logs shit. Well, I got news
  43. for you, 99.9% of all worldwide switching mechanisms, electro-mechanical, or
  44. digital derived, ALL log stuff, and always have done. It's just with these
  45. new 5ESS-2OOO digital exchanges, its more obvious if you are messing around.
  46. Lets say for example you where scanning over 400 numbers a night via your
  47. land line.. Normaly a 5ESS, DMS, TXE etc would just log your line usuage,
  48. calling patterns etc into a subscriber log in one of the switches sub-system
  49. parts. You would only usually get discovered if one of the field technitions,
  50. glanced at the data for you line usuage. Thats ok, because we all no that
  51. exchange field operators are lame and lazy, but what about this new 5ESS-
  52. 2OOO line loging equipment? - welp, I have bad news for you. If you scan
  53. in continuous, or repetitive cycles over your subscriber loop, the chances
  54. are, you're gonna get your haxoring ass taken to court by your RBOC, or
  55. whatever provider you are with. The reason for this is that 5ESS-2OOO
  56. digital switches continously monitor the activity, and network usuage of over
  57. 100,000 lines similtaniously. Instead of loging line status etc into a
  58. dormant log file in a sub-system, if one of the local switches notices that
  59. somthings up, a field adminstrator is notified imediatly, probably by the
  60. means of a status bar on an uplinked terminal. The new switches have been
  61. modified to be very stringent on system capacity and usuage patterns, and
  62. will notify any field office engineer of the slightest problem. The new 5ESS-
  63. 2OOO switches are basically like UK monologs, in other words, they record
  64. everything about your line, all digits dialed, even after terminating
  65. destination point, they even log the time intervals between each tone you
  66. dial/emit. Basically they are the big-bro of the phone system so start
  67. getting paranoid. (I know for a fact, that it is possible to log onto one of
  68. the local exchange units and turn line logging OFF, and even make your line
  69. appear to be non-existant). Anhow, I think I've probably made a few people a
  70. little paranoid now, on with the rest of the file.
  71.  
  72. Types of local compact digital exchanges
  73. ----------------------------------------
  74.  
  75. Werd, well now its time for the focus of the file. I'm not writting a mad
  76. big file on the entire 5ESS-2OOO network because it would take _ages_, so
  77. I'm going to focus on local compact excahnges designed for the rurual
  78. community such as college campuses and areas with not many subscribers, like
  79. suberban areas of towns. There are 2 main types of compact 5ESS-2OOO local
  80. switch, the CDX (Compact Digital eXchange), and the VCDX (Very Compact
  81. Digital eXchange). Both these new units are designed to be very echonimacal
  82. for the money raking telcos. The idea is that these switches are being placed
  83. in new suberban housing developments, and are being integrated into the PSTN
  84. as we speak. The CDX digital exchange for example is designed to be very
  85. snall, handeling small local phone networks, it can however be upgraed with
  86. the implementation of modules, kind of like plug'n'play, until the switch
  87. becomes a fully fledged 5ESS-2OOO unit if required in the future. Lets take
  88. a look at these local networks in more detail.
  89.  
  90. The CDX digital exchange
  91. ------------------------
  92.  
  93. The CDX (Compact Digital eXchange) is a small sized siwtch configuration,
  94. which is capable of providing the same services to subscribers the same as
  95. a conventional 5ESS switch would. Unlike the older rural exchange units,
  96. these new switches are capable of handeling more advanced telecommunications
  97. services like wideband data transmission, and video data etc. The switch is
  98. housed in a cabinet that is 6 foot high, 29.9 inches wide, and 23.6 inches
  99. deep. The switch is desinged to be a stand alone unit and as I said before,
  100. very capable of handeling current/future telecommunications developments and
  101. serverices such as POTS lines (Plain Old Telephone Service), equal access
  102. services, ISDN (Integrated Services Digital Network), CENTREX services such
  103. as call waiting, hold, etc etc. The system is also designed to be fully
  104. compatable with the Signaling System 7 telephony protocol which has been
  105. implemented over the majourity of the international PSTN. The switch can
  106. handle from 100 subscriber loops, upto 15,000 local access lines or 15,000
  107. remote access lines. CDX operates on the same software as the conventional
  108. 5ESS-2OOO switch, and also has the same call routing architecture (physical).
  109.  
  110.  
  111.          ______________________  Admin Console     AM:   Adminstration Module
  112.         |                      |        ______     CM2:  Communications Module
  113.         |                      |       |      |    CM2C: " Compact
  114.         |        3B21D         |-------|      |    MSDT: SLC-2OOO Multi -
  115.         |                      |       |______|          Services Remote
  116.         |______________________|                         Module
  117.                    |
  118.                    |
  119.                    |                    _________________
  120.                    |                   |                 |
  121.             _______|_______            |      SM or      |--|
  122.            |               |           |      SM-2OOO    |--|
  123.            |      CM2C     |-----------|                 |--| (upto 6 RSM
  124.            |_______________|           |                 |--|  outputs)
  125.                    |                   |                 |--|
  126.                   /                    |_________________|
  127.                 /                               |
  128.               /                                 |
  129.       _______|_______                     ______|______          _________
  130.      |               |                   |             |        |         |  
  131.      |      ORM      |                   |             |--------|  local  |
  132.      |_______________|                   |_____________|        |_________|
  133.                                                                   | | | |
  134.                                ORM: Remote Module
  135.                                RSM: Remote Switching Module
  136.                                SLC: Subscriber Loop Carrier
  137.                                SM:  Switching Module
  138.  
  139. The VCDX digital exchange
  140. -------------------------
  141.  
  142. VCDX stands for (VERY Compact Digital eXchange), and when I say compact, I
  143. mean compact. It is the smallest of all 5ESS-2OOO switch configurations but
  144. is still very capable of providing the same services as its bigger bro, the
  145. CDX switch. This switch is used by CATV, CAPS, small towns, and government
  146. facilitys. The switch is also capable of providing Central Office services
  147. such as the usual call waiting, and ISDN. The intersting thing about this
  148. switch is that it supports Carrier Identification Code (CIC) expansion and
  149. is compatable with changing NPA's in the Interchangable Numbering Plan Area,
  150. as required by reglatory bodys such as the FCC.
  151.  
  152. The VCDX switch can support various configurations using a single 5ESS
  153. Switching Module (SM) to handle the call processing. The SM is controlled by
  154. a sophisticated UNIX software-based workstation which provides administrative
  155. and maintenance capabilities. A mimimum configuration of 2 cabinets that are
  156. 6 foot high x 29.9 inches wide x 23.6 inches deep in size is necessary and
  157. thus it fits in a small space. If left in standard mode, the VCDX can handle
  158. upto 1,500 lines. If the SM-2OOO unit is impemented as a module, the switch
  159. can handle as many as 14,000 lines.
  160.  
  161.                  _____________                  _______
  162.                 |             |                |       |
  163.                 | workstation |----------------| modem |      
  164.                 |_____________|                |_______|
  165.                                                    |
  166.                                                    |
  167.                                                    |
  168.                                          __________|___________
  169.              _____________              |                      |--|
  170.             |             |             |                      |--|
  171.             | local dist  |-------------|     SM or SM-2OOO    |--|
  172.             |_____________|             |                      |--|
  173.                | | | | |                |______________________|--|
  174.  
  175.           (to local distrobution plant. then to subscriber loops.)
  176.  
  177. Conclusion
  178. ----------
  179.  
  180. Welp, thats it for this short file/article. Hope you enjoyed it. As you can
  181. see the 5ESS lcoal unit range is very complex, and is a massive improvement
  182. on previous local switching networks. Just be carefull about the subscriber
  183. loop monitoring modules. If you'd like more info on 5ESS-2OOO switching, I
  184. have put some decent information up on my website for your enjoyment and
  185. viewing pleasure. Goto http://www.dtmf.org/hybrid and check it out, you'll
  186. also be able to find the other 30+ files I've written in the past on there
  187. aswell, so go there now@! thats an order, heh. Anyways, thats it, peace.
  188.  
  189.  [http://darkcyde.system7.org] [http://dtmf.org/hybrid] [http://system7.org]
  190.            [http://phunc.com] [http://ninex.com] [http://b4b0.org]
  191.  
  192. shouts to [9x] [b4b0] [D4RKCYDE] [subz] [gr1p] [t1p] [ph1x] [downt1me] [euk]
  193.           [lowtek] [digiphreq] [zomba] [force] [psyclone] [pbxphreak] [gb]
  194.           [ch1ckie] [knight] [siezer] [oeb] [barby] [jasun] [pvbbs] [nino]
  195.  
  196. what file would be complete without fuckyouz?
  197.  
  198.           [rich] [bosplaya] [skimmy]
  199.  
  200.                     ___ ___ _____.___.____________________  ____________
  201. hybrid@b4b0.org    /   |   \\__  |   |\______   \______   \/_   \______ \
  202. hybrid@ninex.com  /    ~    \/   |   | |    |  _/|       _/ |   ||    |  \
  203. hybrid.dtmf.org   \    Y    /\____   | |    |   \|    |   \ |   ||    `   \
  204. ----------------   \___|_  / / ______| |______  /|____|_  / |___/_______  /
  205.                          \/  \/               \/        \/              \/

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