Where can I find the ISDN standard T12.601?

Started by fl April 6, 2006
Hi,
I want to find the ISDN standard after I read a paper. In the reference
of the paper, it refers to:

Amer. Nat. Std. Telecommun., "Integrated services digital network
(ISDN)-Basic access interface for use on metallic loops for application
on the network side of the NT (layer 1 specification)", LB Draft Rev.
T12.601.1988, Jan. 9, 1991

I hope some ISDN specialist can tell me about this.

Thank you very much.

On 6 Apr 2006 09:31:19 -0700, "fl" <rxjwg98@gmail.com> wrote:

>Hi, >I want to find the ISDN standard after I read a paper. In the reference >of the paper, it refers to: > >Amer. Nat. Std. Telecommun., "Integrated services digital network >(ISDN)-Basic access interface for use on metallic loops for application >on the network side of the NT (layer 1 specification)", LB Draft Rev. >T12.601.1988, Jan. 9, 1991 > >I hope some ISDN specialist can tell me about this. > >Thank you very much.
I've built ISDN equipment, but I wouldn't call myself a specialist. The ISDN standards are here: http://www.itu.int/rec/T-REC-I/e T12.601 sounds like an ANSI standard. When I search the ANSI site, I can't find that number, but I can find: ANSI T1.601-1999 (R2004) ISDN Basic Access Interface for Use on Metallic Loops for Application at the Network Side of NT, Layer 1 Specification http://webstore.ansi.org/ansidocstore/product.asp?sku=ANSI+T1%2E601%2D1999+%28R2004%29 US$251 Ouch. The ITU-T version should be identical, but much cheaper. BTW, this is off-topic for comp.dsp. Regards, Allan
Allan Herriman wrote:
> On 6 Apr 2006 09:31:19 -0700, "fl" <rxjwg98@gmail.com> wrote: > > >Hi, > >I want to find the ISDN standard after I read a paper. In the reference > >of the paper, it refers to: > > > >Amer. Nat. Std. Telecommun., "Integrated services digital network > >(ISDN)-Basic access interface for use on metallic loops for application > >on the network side of the NT (layer 1 specification)", LB Draft Rev. > >T12.601.1988, Jan. 9, 1991 > > > >I hope some ISDN specialist can tell me about this. > > > >Thank you very much. > > > I've built ISDN equipment, but I wouldn't call myself a specialist. > The ISDN standards are here: > http://www.itu.int/rec/T-REC-I/e > > > T12.601 sounds like an ANSI standard. When I search the ANSI site, I > can't find that number, but I can find: > > ANSI T1.601-1999 (R2004) > ISDN Basic Access Interface for Use on Metallic Loops for Application > at the Network Side of NT, Layer 1 Specification > http://webstore.ansi.org/ansidocstore/product.asp?sku=ANSI+T1%2E601%2D1999+%28R2004%29 > > > US$251 Ouch. The ITU-T version should be identical, but much > cheaper. > > BTW, this is off-topic for comp.dsp. > > Regards, > Allan
Thank you very much. From the first a few words: Amer. Nat. Std. Telecommun, it looks like ANSI standard. To my surprise, they are not free, as 802.11, 16 etc. In fact, I want to know the detail of their channel model from partial information of the paper. The paper tells three channel models. a. ANSI digital subscriber line #1 with the first post cursor h1=0.91; b. ANSI digital subscriber line #3 with the first post cursor h1=0.8; c. "zero loop" with h1=-0.51. I want to know the above three channels have two taps, h0(=1), and h1?
On 7 Apr 2006 06:49:18 -0700, "fl" <rxjwg98@gmail.com> wrote:

> >Allan Herriman wrote: >> On 6 Apr 2006 09:31:19 -0700, "fl" <rxjwg98@gmail.com> wrote: >> >> >Hi, >> >I want to find the ISDN standard after I read a paper. In the reference >> >of the paper, it refers to: >> > >> >Amer. Nat. Std. Telecommun., "Integrated services digital network >> >(ISDN)-Basic access interface for use on metallic loops for application >> >on the network side of the NT (layer 1 specification)", LB Draft Rev. >> >T12.601.1988, Jan. 9, 1991 >> > >> >I hope some ISDN specialist can tell me about this. >> > >> >Thank you very much. >> >> >> I've built ISDN equipment, but I wouldn't call myself a specialist. >> The ISDN standards are here: >> http://www.itu.int/rec/T-REC-I/e >> >> >> T12.601 sounds like an ANSI standard. When I search the ANSI site, I >> can't find that number, but I can find: >> >> ANSI T1.601-1999 (R2004) >> ISDN Basic Access Interface for Use on Metallic Loops for Application >> at the Network Side of NT, Layer 1 Specification >> http://webstore.ansi.org/ansidocstore/product.asp?sku=ANSI+T1%2E601%2D1999+%28R2004%29 >> >> >> US$251 Ouch. The ITU-T version should be identical, but much >> cheaper. >> >> BTW, this is off-topic for comp.dsp. >> >> Regards, >> Allan > >Thank you very much. From the first a few words: Amer. Nat. Std. >Telecommun, it looks like ANSI standard. To my surprise, they are not >free, as 802.11, 16 etc. >In fact, I want to know the detail of their channel model from partial >information of the paper. The paper tells three channel models. >a. ANSI digital subscriber line #1 with the first post cursor h1=0.91; >b. ANSI digital subscriber line #3 with the first post cursor h1=0.8; >c. "zero loop" with h1=-0.51. >I want to know the above three channels have two taps, h0(=1), and h1?
The channel models (know as test loops) are complicated, and are specified in terms of wire gauges, insulation types, lengths and positions of taps. I don't recall the exact details (not having designed this sort of equipment since the '90s). You might be interested in ETSI ETR-080, which describes the same interface, but has different test loops. Regards, Allan
On 7 Apr 2006 06:49:18 -0700, "fl" <rxjwg98@gmail.com> wrote:

> >Allan Herriman wrote: >> On 6 Apr 2006 09:31:19 -0700, "fl" <rxjwg98@gmail.com> wrote: >> >> >Hi, >> >I want to find the ISDN standard after I read a paper. In the reference >> >of the paper, it refers to: >> > >> >Amer. Nat. Std. Telecommun., "Integrated services digital network >> >(ISDN)-Basic access interface for use on metallic loops for application >> >on the network side of the NT (layer 1 specification)", LB Draft Rev. >> >T12.601.1988, Jan. 9, 1991 >> > >> >I hope some ISDN specialist can tell me about this. >> > >> >Thank you very much. >> >> >> I've built ISDN equipment, but I wouldn't call myself a specialist. >> The ISDN standards are here: >> http://www.itu.int/rec/T-REC-I/e >> >> >> T12.601 sounds like an ANSI standard. When I search the ANSI site, I >> can't find that number, but I can find: >> >> ANSI T1.601-1999 (R2004) >> ISDN Basic Access Interface for Use on Metallic Loops for Application >> at the Network Side of NT, Layer 1 Specification >> http://webstore.ansi.org/ansidocstore/product.asp?sku=ANSI+T1%2E601%2D1999+%28R2004%29 >> >> >> US$251 Ouch. The ITU-T version should be identical, but much >> cheaper. >> >> BTW, this is off-topic for comp.dsp. >> >> Regards, >> Allan > >Thank you very much. From the first a few words: Amer. Nat. Std. >Telecommun, it looks like ANSI standard. To my surprise, they are not >free, as 802.11, 16 etc. >In fact, I want to know the detail of their channel model from partial >information of the paper. The paper tells three channel models. >a. ANSI digital subscriber line #1 with the first post cursor h1=0.91; >b. ANSI digital subscriber line #3 with the first post cursor h1=0.8; >c. "zero loop" with h1=-0.51. >I want to know the above three channels have two taps, h0(=1), and h1?
The channel models (know as test loops) are complicated, and are specified in terms of wire gauges, insulation types, lengths and positions of taps. I don't recall the exact details (not having designed this sort of equipment since the '90s). You might be interested in ETSI ETR-080, which describes the same interface, but has different test loops. Regards, Allan
Allan Herriman wrote:
> On 6 Apr 2006 09:31:19 -0700, "fl" <rxjwg98@gmail.com> wrote: > > >Hi, > >I want to find the ISDN standard after I read a paper. In the reference > >of the paper, it refers to: > > > >Amer. Nat. Std. Telecommun., "Integrated services digital network > >(ISDN)-Basic access interface for use on metallic loops for application > >on the network side of the NT (layer 1 specification)", LB Draft Rev. > >T12.601.1988, Jan. 9, 1991 > > > >I hope some ISDN specialist can tell me about this. > > > >Thank you very much. > > > I've built ISDN equipment, but I wouldn't call myself a specialist. > The ISDN standards are here: > http://www.itu.int/rec/T-REC-I/e > > > T12.601 sounds like an ANSI standard. When I search the ANSI site, I > can't find that number, but I can find: > > ANSI T1.601-1999 (R2004) > ISDN Basic Access Interface for Use on Metallic Loops for Application > at the Network Side of NT, Layer 1 Specification > http://webstore.ansi.org/ansidocstore/product.asp?sku=ANSI+T1%2E601%2D1999+%28R2004%29 > > > US$251 Ouch. The ITU-T version should be identical, but much > cheaper. > > BTW, this is off-topic for comp.dsp. > > Regards, > Allan
Thank you very much. From the first a few words: Amer. Nat. Std. Telecommun, it looks like ANSI standard. To my surprise, they are not free, as 802.11, 16 etc. In fact, I want to know the detail of their channel model from partial information of the paper. The paper tells three channel models. a. ANSI digital subscriber line #1 with the first post cursor h1=0.91; b. ANSI digital subscriber line #3 with the first post cursor h1=0.8; c. "zero loop" with h1=-0.51. I want to know the above three channels have two taps, h0(=1), and h1?
On 6 Apr 2006 09:31:19 -0700, "fl" <rxjwg98@gmail.com> wrote:

>Hi, >I want to find the ISDN standard after I read a paper. In the reference >of the paper, it refers to: > >Amer. Nat. Std. Telecommun., "Integrated services digital network >(ISDN)-Basic access interface for use on metallic loops for application >on the network side of the NT (layer 1 specification)", LB Draft Rev. >T12.601.1988, Jan. 9, 1991 > >I hope some ISDN specialist can tell me about this. > >Thank you very much.
I've built ISDN equipment, but I wouldn't call myself a specialist. The ISDN standards are here: http://www.itu.int/rec/T-REC-I/e T12.601 sounds like an ANSI standard. When I search the ANSI site, I can't find that number, but I can find: ANSI T1.601-1999 (R2004) ISDN Basic Access Interface for Use on Metallic Loops for Application at the Network Side of NT, Layer 1 Specification http://webstore.ansi.org/ansidocstore/product.asp?sku=ANSI+T1%2E601%2D1999+%28R2004%29 US$251 Ouch. The ITU-T version should be identical, but much cheaper. BTW, this is off-topic for comp.dsp. Regards, Allan
Hi,
I want to find the ISDN standard after I read a paper. In the reference
of the paper, it refers to:

Amer. Nat. Std. Telecommun., "Integrated services digital network
(ISDN)-Basic access interface for use on metallic loops for application
on the network side of the NT (layer 1 specification)", LB Draft Rev.
T12.601.1988, Jan. 9, 1991

I hope some ISDN specialist can tell me about this.

Thank you very much.