Interpretation of Australian Standard TS001
John, This clause means that IF a detachable plug is used it should not be of a type which is normally used to connect to the network. In other words, if you disconnect the cable from the CE to the LIU, at the LIU, you should not be able to then plug that cable (coming directly from the CE) into a standard network line connection socket. Hope this clears it up a little. Best regards, Kevin > Sender: owner-emc-p...@majordomo.ieee.org > Received: from ruebert.ieee.org (ruebert.ieee.org [199.172.136.3]) > by arl-img-9.compuserve.com (8.8.6/8.8.6/2.12) with ESMTP id LAA07709; > Wed, 26 Aug 1998 11:35:21 -0400 (EDT) > Received: by ruebert.ieee.org (8.8.8/8.8.8) > id KAA21826 for emc-pstc-resent; Wed, 26 Aug 1998 10:07:29 -0400 (EDT) > From: f...@netc.ie > Date: Wed, 26 Aug 98 14:56:55 > Message-Id: <9807269041.aa904168...@netc.netc.ie> > To: emc-p...@ieee.org, emc-p...@majordomo.ieee.org > Subject: Interpretation of Australian Standard TS001 > Sender: owner-emc-p...@majordomo.ieee.org > Precedence: bulk > Reply-To: f...@netc.ie > X-Resent-To: Multiple Recipients > X-Listname: emc-pstc > X-Info: Help requests to emc-pstc-requ...@majordomo.ieee.org > X-Info: [Un]Subscribe requests to majord...@majordomo.ieee.org > X-Moderator-Address: emc-pstc-appro...@majordomo.ieee.org > > > Hi all, > > I have a question regarding TS001 - 1997 which is an Australian > Standard for safety of telecoms equipment for customer use. > > Clause 5.3 permits the use of a separate Line Isolation Unit which is > connected between the telecoms device, typically a modem, and the > network. The purpose of this LIU is to provide electrical separation > from the network to SELV, in the case where the device itself does not > provide that separation. > > Clause 5.3.2 allows three methods to prevent the possibility of the > LIU being bypassed, resulting in the device being directly connected > to the network. The first method is the "Use of detachable cabling > that will not allow direct connection of CE to a telecommunications > network" > > My question is should the above sentence read "non-detachable" istead > of "detachable"? Otherwise can anybody shed some light on the intent? > > All comments appreciated. > > John Fee > > f...@netc.ie > > - > This message is coming from the emc-pstc discu Best regards, Kevin RichardsonPh: 02-43-29-4070 Stanimore Pty Limited Fax: 02-43-28-5639 "The Technology Requirements Specialists" Int'l: +61-2-43-2x- Email: Internet: k...@compuserve.com Compuserve: 100356,374 - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.com with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, ri...@sdd.hp.com, or roger.volgst...@compaq.co (the list administrators).
Re: Interpretation of Australian Standard TS001
Hello John, There is no mistake with the spec's wording. The intent of the clause is to have cabling that will prevent the LIU from being easily bypassed. With the method that you have mentioned this could be achieved by the CE having a non-standard connector that will prevent direct connection to the network. In this case the user is encouraged to connect the CE to the LIU via the non-standard connector and then make the network connection to the LIU using a standard connector (RJ11 etc). If the LIU and CE were joined with a "non-detachable" cable this would also meet the intention of this clause as the user would need to make some serious changes to bypass the LIU. Regards Barry Esmore -- > From: f...@netc.ie > To: emc-p...@ieee.org; emc-p...@majordomo.ieee.org > Subject: Interpretation of Australian Standard TS001 > Date: Thursday, 27 August 1998 0:56 > > > Hi all, > > I have a question regarding TS001 - 1997 which is an Australian > Standard for safety of telecoms equipment for customer use. > > Clause 5.3 permits the use of a separate Line Isolation Unit which is > connected between the telecoms device, typically a modem, and the > network. The purpose of this LIU is to provide electrical separation > from the network to SELV, in the case where the device itself does not > provide that separation. > > Clause 5.3.2 allows three methods to prevent the possibility of the > LIU being bypassed, resulting in the device being directly connected > to the network. The first method is the "Use of detachable cabling > that will not allow direct connection of CE to a telecommunications > network" > > My question is should the above sentence read "non-detachable" istead > of "detachable"? Otherwise can anybody shed some light on the intent? > > All comments appreciated. > > John Fee > > f...@netc.ie - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.com with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, ri...@sdd.hp.com, or roger.volgst...@compaq.co (the list administrators).
Interpretation of Australian Standard TS001
Hi all, I have a question regarding TS001 - 1997 which is an Australian Standard for safety of telecoms equipment for customer use. Clause 5.3 permits the use of a separate Line Isolation Unit which is connected between the telecoms device, typically a modem, and the network. The purpose of this LIU is to provide electrical separation from the network to SELV, in the case where the device itself does not provide that separation. Clause 5.3.2 allows three methods to prevent the possibility of the LIU being bypassed, resulting in the device being directly connected to the network. The first method is the "Use of detachable cabling that will not allow direct connection of CE to a telecommunications network" My question is should the above sentence read "non-detachable" istead of "detachable"? Otherwise can anybody shed some light on the intent? All comments appreciated. John Fee f...@netc.ie - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.com with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, ri...@sdd.hp.com, or roger.volgst...@compaq.co (the list administrators).
