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The Telecom Digest for Sat, 24 Mar 2018
Volume 37 : Issue 71 : "text" format

Table of contents
Arizona schools rely on federal dollars to boost internet Bill Horne
Justice Department: AT&T's merger is a 'frontal attack' on the lawMonty Solomon
EFF: How Congress Censored the InternetMonty Solomon
Re: V35 and G.703Stephen Hope
---------------------------------------------------------------------- Message-ID: <20180323154022.GA8350@telecom.csail.mit.edu> Date: Fri, 23 Mar 2018 11:40:22 -0400 From: Bill Horne <bill@horneQRM.net> Subject: Arizona schools rely on federal dollars to boost internet By Pete Aleshire The Payson [AZ] School Board this week approved nearly $35,000 in contracts to upgrade Internet equipment and service on the district's four campuses. The federal E-rate program will pay 80 percent of the cost, for the latest local installment in a multi-billion-dollar annual federal effort to connect schools and libraries to high speed Internet. ... The federal government charges phone and telecommunications companies an annual fee to improve access for underserved areas amounting to some $2 billion annually. The long-running program has helped boost high-speed and wireless Internet on school campuses - rising from about 35 percent of schools when the program started in the 1990s to about 95 percent now. http://www.wmicentral.com/news/latest_news/school-rely-on-federal-dollars-to-boost-internet/article_b87e5d65-288d-564d-af7e-736a71950912.html -- Bill Horne (Remove QRM from my email address to write to me directly) ------------------------------ Message-ID: <639AD36B-30D2-4315-B82D-B1D3F4D24F85@roscom.com> Date: Fri, 23 Mar 2018 09:57:48 -0400 From: Monty Solomon <monty@roscom.com> Subject: Justice Department: AT&T's merger is a 'frontal attack' on the law Justice Department: AT&T's merger is a "frontal attack" on the law What to expect from the landmark trial. When the University of Maryland-Baltimore County delivered a historic upset over the University of Virginia's college basketball team last week, the game was carried on a cable channel owned by a company AT&T is trying to buy for $85 billion - and which is at the center of a landmark antitrust lawsuit between the telecom giant and the Department of Justice. Government attorneys said Thursday that the match is an example of the kind of popular content that could become more expensive to watch if AT&T is allowed to purchase Time Warner, one of the world's biggest entertainment companies. https://www.washingtonpost.com/news/the-switch/wp/2018/03/22/att-time-warner-trial-department-of-justice-opening-arguments/ ------------------------------ Message-ID: <728C3912-A442-48BC-9E0C-10A87AB01230@roscom.com> Date: Fri, 23 Mar 2018 10:09:57 -0400 From: Monty Solomon <monty@roscom.com> Subject: EFF: How Congress Censored the Internet How Congress Censored the Internet BY Elliot Harmon In Passing SESTA/FOSTA, Lawmakers Failed to Separate Their Good Intentions from Bad Law Today was a dark day for the Internet. The U.S. Senate just voted 97-2 to pass the Allow States and Victims to Fight Online Sex Trafficking Act (FOSTA, H.R. 1865), a bill that silences online speech by forcing Internet platforms to censor their users. As lobbyists and members of Congress applaud themselves for enacting a law tackling the problem of trafficking, let's be clear: Congress just made trafficking victims less safe, not more. https://www.eff.org/deeplinks/2018/03/how-congress-censored-internet ------------------------------ Message-ID: <bs68bdp9o6s086gqvhbt5p9dergjbaene4@4ax.com> Date: Thu, 22 Mar 2018 21:15:07 +0000 From: Stephen Hope <stephen_hope@remove-this.xyzworld.com> Subject: Re: V35 and G.703 On Tue, 20 Mar 2018 03:35:45 -0700 (PDT), vtang2015@gmail.com wrote: >On Tuesday, November 6, 2001 at 1:28:39 AM UTC+8, Matt wrote: > >> marco.carini@snamprogetti.eni.it (marco carini) wrote in message >> news:<8759c9f6.0111050030.5bd086d@posting.google.com>... >> > >> > I would like to know what are the differences between V.35 and >> > G.703 interfaces. Is there anyone who can help me to understand >> > when V.35 interface can be used and when G.703 is preferred? >> > >> > Thanks in advance for your kind answer. >> > -- >> > The Telecom Digest is currently mostly robomoderated. Please mail >> > messages to [redacted] >> >> Where aren't they different. >> >> V.35 simply stated has differential signaling on the datapath with >> separate clocks (clocks are also differentially signalled).. it has >> standard modem control signals (CTS,RTS etc...) which use single >> end-ended signalling.. standard connector is a winchester >> connector. Standard (V.35) has been withdrawn by the ITU, so >> implementations are loose. Typical maximum datarate for V.35 >> drivers is 10 MHz. >> >> V.35 is used between a router and CSU/DSU, when the router doesn't >> have this function integrated. >> >> G.703 defines standard telecom electrical interfaces including such >> interfaces as DS0, DS1, DS3, E1 and E3. Interfaces use different line >> codings (B8ZS, HDB3)and different medias for transport (coax, UTP, >> STP). >> >> G.703 would be the interface which is on the "network" side of a >> CSU/DSU. >> >> The diagrams below shows two possible implementations.. >> >> WAN --- DS1 ----- CSU/DSU ----- V.35 ----- Router ---- 802.3 --- LAN >> >> WAN --- DS1 ----- CSU/DSU/Router ---- 802.3 --- LAN >> >> WAN and LAN are networks DS1, V.35 and 802.3 are physical layers. >> CSU/DSU and Router are communications equipment. >> >> Matt > > Hi, Can you tell me where i can buy G.703/G.704 to V.35 (Winchester > connector) interface converter? I know many manufacturers have > stopped production. I am looking for those that [are] still > shipping. > > Thank you. > Victor > > >***** Moderator's Note ***** > > I'm not sure if G.703/4 were ever used outside the "V.35" interface, > so I'm not sure what you're asking, but I'll publish this in hopes > that someone else can help you. G.703 2 Mbps is the standard delivery for an ISDN30 voice circuit in UK & Europe (and other places outside US + Japan where those are still around). V.35 is 1 of a set of serial interfaces that can sort of interwork with cable adaptors and some compromises about clocking if you cannot find V.35 specific interfaces - X.21 in the UK, but RS422 as well. Most relatively recent equipment designed for a serial interface such as a Cisco router have had flexible multifunction serial interfaces for a long time - typically they support RS422, V.35, X.21 and DTE or DCE setup - you pick the one you want by strapping different pins together within a cable. -- Stephen ------------------------------ ********************************************* End of telecom Digest Sat, 24 Mar 2018

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