5ESS-2OOO Compact Exchange Units. by hybr1d (http://hybrid.dtmf.org) o Introduction o Types of compact exchanges o CDX exchange o VCDX exchange o Conclusion Introduction ------------ This is a very compact file, designed to be an intorduction, or primer to 5ESS local compact digital exchange units. I am wrtting this off the top of my head, so don't expect it to be very complex in technical nature. For starters I'll explain a little about the new 5ESS switches and there functions. We've all heard of the millenium bug, and it's supposid ability to take out massive networks etc. Well Lucent technologys, Bellcore (now telecord communications or somthing), aswell as lata exchange carrier providers such as MCI, AT&T, Sprint, and all the RBOC's such as SWBell, etc, all got a bit paranoid and decided to enhance to current 5ESS switching configurations to a new architecture they feel would be compatable with the millenium software and network problems. The new 5ESS-2OOO switches are all basically the same as conventional 5ESS switches, except the software parts, such as the administration control software platforms, and global title translation software etc, have been upgraded to be Y2K compatable. As well as this, the new 5ESS switches have been modified (based upon conventional 5ESS) to be easily upgraded in the future with new modules for future telecommunications developments. In other words, the new digital switches are very very very souped-up versions of 5ESS, infact, I would concider them to be one of the most versatile switches around. Now the deal with these new digital switching systems is that they can handle more and more lines, more network traffic, aswell as a very upgraded ability for general system capacity. They have also been upgraded with new security features to stop people like me from gaining access to the local administration part which is accessable via x25, the PSTN, and the net (on a 'secret' IP range).. I'm not going to go into that at the moment, thats another file.. Anyways, as I was saying, the new 5ESS-2OOO digital exchanges are like souped up 5ESS switches. Before there where people bitching about how they can get 'traced' messing around on the phone network because 5ESS logs shit. Well, I got news for you, 99.9% of all worldwide switching mechanisms, electro-mechanical, or digital derived, ALL log stuff, and always have done. It's just with these new 5ESS-2OOO digital exchanges, its more obvious if you are messing around. Lets say for example you where scanning over 400 numbers a night via your land line.. Normaly a 5ESS, DMS, TXE etc would just log your line usuage, calling patterns etc into a subscriber log in one of the switches sub-system parts. You would only usually get discovered if one of the field technitions, glanced at the data for you line usuage. Thats ok, because we all no that exchange field operators are lame and lazy, but what about this new 5ESS- 2OOO line loging equipment? - welp, I have bad news for you. If you scan in continuous, or repetitive cycles over your subscriber loop, the chances are, you're gonna get your haxoring ass taken to court by your RBOC, or whatever provider you are with. The reason for this is that 5ESS-2OOO digital switches continously monitor the activity, and network usuage of over 100,000 lines similtaniously. Instead of loging line status etc into a dormant log file in a sub-system, if one of the local switches notices that somthings up, a field adminstrator is notified imediatly, probably by the means of a status bar on an uplinked terminal. The new switches have been modified to be very stringent on system capacity and usuage patterns, and will notify any field office engineer of the slightest problem. The new 5ESS- 2OOO switches are basically like UK monologs, in other words, they record everything about your line, all digits dialed, even after terminating destination point, they even log the time intervals between each tone you dial/emit. Basically they are the big-bro of the phone system so start getting paranoid. (I know for a fact, that it is possible to log onto one of the local exchange units and turn line logging OFF, and even make your line appear to be non-existant). Anhow, I think I've probably made a few people a little paranoid now, on with the rest of the file. Types of local compact digital exchanges ---------------------------------------- Werd, well now its time for the focus of the file. I'm not writting a mad big file on the entire 5ESS-2OOO network because it would take _ages_, so I'm going to focus on local compact excahnges designed for the rurual community such as college campuses and areas with not many subscribers, like suberban areas of towns. There are 2 main types of compact 5ESS-2OOO local switch, the CDX (Compact Digital eXchange), and the VCDX (Very Compact Digital eXchange). Both these new units are designed to be very echonimacal for the money raking telcos. The idea is that these switches are being placed in new suberban housing developments, and are being integrated into the PSTN as we speak. The CDX digital exchange for example is designed to be very snall, handeling small local phone networks, it can however be upgraed with the implementation of modules, kind of like plug'n'play, until the switch becomes a fully fledged 5ESS-2OOO unit if required in the future. Lets take a look at these local networks in more detail. The CDX digital exchange ------------------------ The CDX (Compact Digital eXchange) is a small sized siwtch configuration, which is capable of providing the same services to subscribers the same as a conventional 5ESS switch would. Unlike the older rural exchange units, these new switches are capable of handeling more advanced telecommunications services like wideband data transmission, and video data etc. The switch is housed in a cabinet that is 6 foot high, 29.9 inches wide, and 23.6 inches deep. The switch is desinged to be a stand alone unit and as I said before, very capable of handeling current/future telecommunications developments and serverices such as POTS lines (Plain Old Telephone Service), equal access services, ISDN (Integrated Services Digital Network), CENTREX services such as call waiting, hold, etc etc. The system is also designed to be fully compatable with the Signaling System 7 telephony protocol which has been implemented over the majourity of the international PSTN. The switch can handle from 100 subscriber loops, upto 15,000 local access lines or 15,000 remote access lines. CDX operates on the same software as the conventional 5ESS-2OOO switch, and also has the same call routing architecture (physical). ______________________ Admin Console AM: Adminstration Module | | ______ CM2: Communications Module | | | | CM2C: " Compact | 3B21D |-------| | MSDT: SLC-2OOO Multi - | | |______| Services Remote |______________________| Module | | | _________________ | | | _______|_______ | SM or |--| | | | SM-2OOO |--| | CM2C |-----------| |--| (upto 6 RSM |_______________| | |--| outputs) | | |--| / |_________________| / | / | _______|_______ ______|______ _________ | | | | | | | ORM | | |--------| local | |_______________| |_____________| |_________| | | | | ORM: Remote Module RSM: Remote Switching Module SLC: Subscriber Loop Carrier SM: Switching Module The VCDX digital exchange ------------------------- VCDX stands for (VERY Compact Digital eXchange), and when I say compact, I mean compact. It is the smallest of all 5ESS-2OOO switch configurations but is still very capable of providing the same services as its bigger bro, the CDX switch. This switch is used by CATV, CAPS, small towns, and government facilitys. The switch is also capable of providing Central Office services such as the usual call waiting, and ISDN. The intersting thing about this switch is that it supports Carrier Identification Code (CIC) expansion and is compatable with changing NPA's in the Interchangable Numbering Plan Area, as required by reglatory bodys such as the FCC. The VCDX switch can support various configurations using a single 5ESS Switching Module (SM) to handle the call processing. The SM is controlled by a sophisticated UNIX software-based workstation which provides administrative and maintenance capabilities. A mimimum configuration of 2 cabinets that are 6 foot high x 29.9 inches wide x 23.6 inches deep in size is necessary and thus it fits in a small space. If left in standard mode, the VCDX can handle upto 1,500 lines. If the SM-2OOO unit is impemented as a module, the switch can handle as many as 14,000 lines. _____________ _______ | | | | | workstation |----------------| modem | |_____________| |_______| | | | __________|___________ _____________ | |--| | | | |--| | local dist |-------------| SM or SM-2OOO |--| |_____________| | |--| | | | | | |______________________|--| (to local distrobution plant. then to subscriber loops.) Conclusion ---------- Welp, thats it for this short file/article. Hope you enjoyed it. As you can see the 5ESS lcoal unit range is very complex, and is a massive improvement on previous local switching networks. Just be carefull about the subscriber loop monitoring modules. If you'd like more info on 5ESS-2OOO switching, I have put some decent information up on my website for your enjoyment and viewing pleasure. Goto http://www.dtmf.org/hybrid and check it out, you'll also be able to find the other 30+ files I've written in the past on there aswell, so go there now@! thats an order, heh. Anyways, thats it, peace. [http://darkcyde.system7.org] [http://dtmf.org/hybrid] [http://system7.org] [http://phunc.com] [http://ninex.com] [http://b4b0.org] shouts to [9x] [b4b0] [D4RKCYDE] [subz] [gr1p] [t1p] [ph1x] [downt1me] [euk] [lowtek] [digiphreq] [zomba] [force] [psyclone] [pbxphreak] [gb] [ch1ckie] [knight] [siezer] [oeb] [barby] [jasun] [pvbbs] [nino] what file would be complete without fuckyouz? [rich] [bosplaya] [skimmy] ___ ___ _____.___.____________________ ____________ hybrid@b4b0.org / | \\__ | |\______ \______ \/_ \______ \ hybrid@ninex.com / ~ \/ | | | | _/| _/ | || | \ hybrid.dtmf.org \ Y /\____ | | | \| | \ | || ` \ ---------------- \___|_ / / ______| |______ /|____|_ / |___/_______ / \/ \/ \/ \/ \/