On Wed, 21 Jul 2004, Andre Oppermann wrote:
> I'm having a few questions about T1 line support in the US because I have to procure
> some Router/Network hardware for US branches of a company (I am from Europe).
>
> Normally in Europe when you order an E1 (G.703) connection the Telco delivers a
>
At 08:25 AM 7/21/2004, you wrote:
Normally in Europe when you order an E1 (G.703) connection the Telco
delivers a
NTU (Network termination Unit) which normally is a (S)HDSL modem
converting from
two-wire DSL to four-wire E1 electrical. The cable between the NTU and
the Router
is normally very s
This is a pretty good site that will answer most of your questions.
http://www.dcbnet.com/notes/9611t1.html
On 7/21/04 7:25 AM, "Andre Oppermann" <[EMAIL PROTECTED]> wrote:
>
> I'm having a few questions about T1 line support in the US because I have to
> procure
> some Router/Network hardw
Robert Boyle wrote:
You can travel up to 655 ft. with a T1 cable from the NTU which the
phone company will drop at your site. According to the letter of the
specs, you are supposed to use "T1 cable" two 22AWG pairs individually
shielded to prevent cross-talk. In practice, we have extended DMarcs
Robert Boyle wrote:
At 08:25 AM 7/21/2004, you wrote:
o What is "Wet T1 Capable"? What is it used for and who needs this?
This is one of the "features" of the new WIC-1DSU-T1-V2. It seems that
some DSUs can be powered by the telco remotely. In 15 years of working
in communications, I've never se
Ok, thanks for all the responses so far!
To summarize what I've gathered from the answers and reading through the
pointed out websites. For ordering T1 leased-line services I want the
following:
o Router port with integrated CSU/DSU (instead of going T1->X.21->Router)
[this was clear to me fr
Robert Boyle wrote:
Does anyone else have more/better info?
I've found this to be useful:
http://www.dcbnet.com/notes/9611t1.html
--
Gabriel Cain www.dialupusa.net
Senior Systems Administrator [EMAIL PROTECTED]
PGP fingerprint: C0B4 C6B
>> o SmartJack with demarcation point in the office (or same floor) instead
>>of the building entrance point
You are not likely going to be able to control that,
it depends on how the install tech's day is going.
Strictly speaking, I believe they are supposed to put
it at the MPOE.
>> If I
Andre:
If your distance for the short-haul is less than 10 miles or so (line-of-sight), I
would go wireless. Reasons:
a) you can get 10-30MBps on wireless vs. 1.4Mbps for T1.
b) if you already have an antenna or other high-point, you can own the wireless
network for about what the Telco wo
One word of caution on that - we had a customer who got 4 separate
1M/1.5M ADSL circuits - all to the same DSLAM. Ended up that the telco
had only provisioned that DSLAM with a single T1, and was apparently
unable to upgrade that, negating any advantage to the multiple DSL's.
It was a remote DSLAM
Message -
From: "Jon R. Kibler" <[EMAIL PROTECTED]>
To: "Andre Oppermann" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Wednesday, July 21, 2004 09:44
Subject: Re: T1 short-haul vs. long-haul
> Andre:
>
> If your distance for the short-haul is le
Jon R. Kibler wrote:
Andre:
If your distance for the short-haul is less than 10 miles or so
> (line-of-sight), I would go wireless. Reasons:
a) you can get 10-30MBps on wireless vs. 1.4Mbps for T1.
b) if you already have an antenna or other high-point, you can
> own the wireless network for a
-
> Adam Debus
> Network Engineer, ReachONE Internet
> [EMAIL PROTECTED]
> - Original Message -
> From: "Jon R. Kibler" <[EMAIL PROTECTED]>
> To: "Andre Oppermann" <[EMAIL PROTECTED]>
> Cc: <[EMAIL PROTECTED]>
> Sent: Wednesday,
>> I don't think standard ethernet pinouts are correct. You want a cable
>> with pins 1&2 on one twisted pair and 4&5 on another (7&8 for DDS 56K).
Correct has nothing to do with it.
Any straight-through cable will work just fine. It's just from the
jack to the equipment... and it's already be
Yes, this is built around category 3 wiring, not 5. The specs are a
little more forgiving. Just grab any 'ole ethernet patch cord and hook
it up. Works flawlessly. Unless you're running between DSX pannels or
into another MUX, you never need to roll pairs on a T1 installation so
just wire straight
Operations & Infrastructure
[EMAIL PROTECTED]
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of
> Mark Kent
> Sent: Wednesday, July 21, 2004 12:40 PM
> To: [EMAIL PROTECTED]
> Subject: Re: T1 short-haul vs. long-haul
>
>
lease contact Walt Disney Internet Group at
206-664-4000.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Jon R. Kibler
Sent: Wednesday, July 21, 2004 9:45 AM
To: Andre Oppermann
Cc: [EMAIL PROTECTED]
Subject: Re: T1 short-haul vs. long-haul
Andre:
If
>> SmartJack with demarcation point in the office (or
>> same floor) instead of the building entrance point
I can't emphasize enough the importance of this, read ahead.
> Mark Kent wrote:
> You are not likely going to be able to control that,
> it depends on how the install tech's day is going.
- Original Message -
From: "Mark Kent" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, July 21, 2004 12:39 PM
Subject: Re: T1 short-haul vs. long-haul
>
> Order the T1 (ESF, B8ZS). As you order the circuit specify where you
> want it to end up
JB> Date: Thu, 22 Jul 2004 00:43:59 -0400
JB> From: John Bittenbender
JB> - Original Message -
JB> From: Mark Kent
JB>
JB> > The telco is not your friend.
JB>
JB> Indeed. But be nice to the techs, save the anger for their
JB> management.
Depending on the telco, craft may well be your f
Michel Py wrote:
The installer should test from the extended
demarc (make sure they do).
The installer and all the techs always test from the demarc, whether or
not it's extended. What you DON'T want to do is to extend the demarc
yourself (because you don't actually extend it), and here's why:
Ok,
I have hard experience with SDSL vs straight DS1 service.
SDSL has three-four different companies in the picture.
You only get to talk to the first. Period. Everything beyond is
2nd hand.
They all have finger splints from overuse; pointing to each other.
I have had Verizonal leave a DS-3 feed
David Lesher wrote:
I have hard experience with SDSL vs straight DS1 service.
SDSL has three-four different companies in the picture.
You only get to talk to the first. Period. Everything beyond is
2nd hand.
They all have finger splints from overuse; pointing to each other.
I have had Verizonal lea
>o What is the "demarc"? Is it the jack/punch-block where the SmartJack is
connected to?
The demarc (short for demarcation point) is the last place on a circuit that
the carrier is responsible. With a T1 this is typically some sort of
semi-intelligent device (NIU, smartjack) that responds to
> What is the "demarc"?
The demarc is the service demarcation. On your side of the demarc,
things are your responsibility. On the telco side of the demarc, it's
your provider and/or the LEC responsibility.
http://192.20.13.157/planner/tab003a.pdf look at figure 1
http://192.20.13.157/planner/tab
In the interest of complicating things further, I think you have NIU
and smartjack backwards in your explanation...the smartjack has alarm
lights and can be remotely looped by the telco via ESF loopcodes; the
NIU (also known as an RJ48X) is the dumb wiring box. In my experience,
smartjacks are
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Michel Py wrote:
|>What is the "demarc"?
|
|
| The demarc is the service demarcation. On your side of the demarc,
| things are your responsibility. On the telco side of the demarc, it's
| your provider and/or the LEC responsibility.
|
| http://192.20.13
EMAIL PROTECTED]
Subject: Re: T1 short-haul vs. long-haul
Dean Anderson <[EMAIL PROTECTED]> typed:
>> Hmm. Michel, We disagree on everything it seems.
Just for the record: I believe that, with the exception of your
first point (re: diff between ATT telecom and ATT data services),
the r
> Christopher Woodfield wrote:
> In the interest of complicating things further, I think
> you have NIU and smartjack backwards in your explanation
You think, which is a good beginning. Seeing it with your own eyes might
be of some interest, NTM that doing it for a living for 20+ years may
give n
hate to say it but what is pictured is not a smart jack, it is as you say a
glorified patch.
a *TRUE* smart jack DOES have the tiny bit of circuitry necess'y to cause
it to loop the line back when nothing is connected to it, some can do it
via line signaling as well.
in some telco territory wh
I think we can probably chalk this up to a difference in dialect, for
lack of a better word...what you're calling an NIU is exactly what I
would call a smartjack and vice versa. Can you point to any sort of
"official" documentation that defines these? I'm looking to see if
anyone in my office h
> Christopher Woodfield wrote:
> I think we can probably chalk this up to a difference
> in dialect, for lack of a better word...what you're
> calling an NIU is exactly what I would call a smartjack
> and vice versa. Can you point to any sort of "official"
> documentation that defines these?
> Ch
>> Michel Py wrote:
>> I stopped by a T1 MPOE on my way home and took a few photos.
> Michael Loftis wrote:
> hate to say it but what is pictured is not a smart jack,
> it is as you say a glorified patch.
Care to post a photo of what you think a smartjack is?
> a *TRUE* smart jack DOES have the
o:[EMAIL PROTECTED] On Behalf Of
Christopher Woodfield
Sent: Friday, July 23, 2004 2:51 PM
To: Michel Py
Cc: [EMAIL PROTECTED]; Andre Oppermann
Subject: Re: T1 short-haul vs. long-haul
I think we can probably chalk this up to a difference in dialect, for
lack
of a better word...what you
On Fri, 23 Jul 2004, Christopher Woodfield wrote:
> OK, from my reading in Newton's Telecom Dictionary, it appears that NIU
> is a generic term for "whatever the customer plugs their cable into",
> be it a powered or a dumb device. Mea culpa.
...
> "...installed on the premises as a semi-intellig
On the matter of the type of cabling to be used between the Telco Demarc and the
CPE, I have found this to be one of the most shrouded of all areas in telecom
standards. The jabber and deliberations that have taken place over this issue
border on folk lore and hijinx, and could fill a plant man
> Forrest W. Christian wrote:
> In Qwest land, NIU, Smart Jack, and Demarc (unless
> "extended") are all in the same physical rack.
> When you get a T1, qwest installs an appropriately
> sized shelf. This shelf holds the adtran and
> westell devices shown in earlier posts. For example,
> we have o
> [EMAIL PROTECTED] wrote:
> I've seen where STP (shielded twisted-pair cabling) purists have
> succeeded in having shielded cabling used, only to screw it up by
> mis-applying the necessary grounding connections causing more
> problems than they solved.
I have also seen funny issues with RJ48C
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