joemaloy
join:2004-12-21
Tonopah, AZ | Just making sure......
"Help! New T1 installed and no smart jack installed"
Was reading the thread above on here, and wanting to make sure that all I need to hookup the T1 to my router is a straight,regular cat5e cable...??? The T1 is getting installed on Friday. |
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PSWired
join:2006-03-26
Edgewater, MD | Depends on what kind of router you have. Does it have a CSU/DSU built in? |
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joemaloy
join:2004-12-21
Tonopah, AZ | reply to joemaloy
Ya,I think so. Its coming from the Telco. Im pretty sure it does. |
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jdmarti1
Jack
join:2004-06-15
Oilton, OK
1 edit | No smartjack? That is extremely unusual. I work in telecom and the only way you ever see that is if the demarc was extended. The smartjack is there, just before the extension - is that the case?
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»magicwisp.com |
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cmaenginsb
Premium,MVM
join:2001-03-19
Palmdale, CA
| reply to joemaloy
There is a smart jack, you just might not see it. In many instances the telcos are going to an outdoor "NID" type unit which allows them to access it 24/7 without needing you around. From there they run a twisted pair cable to the RJ-45 jack. Remember that while the T-1 might get physically installed one day, the actual logical circuit can take up to 30 days after the physical install to work.
Assuming the router has a CSU/DSU built in (about 90% of the time they do now) then you can use any RJ-45 straigt through cable to connect between the RJ-45 jack the telco provides for you and the router. Be careful on a long cable run from the smartjack to the router (in total). Also a T-1 uses pins 1&2 and 4&5 which is different than ethernet so it is possible that a cable the works fine with ethernet will not work with a T-1 since they use differet pinouts. A store bought cable will work unless it's a cheap one (I've seen a few with only 4 wires connected)
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CCNA, Comtrain Certified Tower Climber |
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lutful
Premium
join:2005-06-16
Ottawa, ON
 ·TekSavvy Solutions..
| said by cmaenginsb  :T-1 uses pins 1&2 and 4&5 which is different than ethernet RJ48C wiring scheme is used for telco T1 jack. »www.shout.net/~wildixon/telecom/···48c.html
I am not sure if T1 transceivers do auto-sensing, so maybe tip/ring pairs need to connect T to R1 and R to T1 between any two T1 devices? |
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cmaenginsb
Premium,MVM
join:2001-03-19
Palmdale, CA | reply to joemaloy
I forgot it's RJ-48 but T1s do not auto sense. The only way to connect 2 T-1 devices back to back is to cross pin 1 with pin 4 and pin 2 with pin 5.
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CCNA, Comtrain Certified Tower Climber |
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thewildthang
join:2005-12-21
Winfield, AL
| reply to joemaloy
As for a smart jack having to be there, about 2 years ago I had a t1 installed in Lynn Kansas, when they said it was ready to go, I flew out there with the equipment to set everything up and there wasn't a smart jack on the property, no where. After a couple of confusing conversations with the local phone company I finally plugged my equipment into what appeared to be a standard RJ45 wall jack and it worked, the smart jack (probably just a rack card) was located at the switching office about 2 miles away. |
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Keithb
join:2003-09-16
US
| reply to joemaloy
I suppose a managed solution from AT&T with a Cisco 1721 router pack would not require the above for our end correct? We just simply hook into the LAN side of the router?
When we initially setup the order for the router, we were told the cost/month and terms, and told we'd get 256 IP's. Well, this was during the SBC/AT&T merger. When we did the technical phone call with AT&T, we were told we'd get 128 IP's, and needed a dedicated VOX phone line for them to access this. We weren't told any of this upfront by the sales staff which kinda made me mad as I then had to tell management we have to get another phone line. Anyone else have issues with confusion with the SBC/AT&T merger? |
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cmaenginsb
Premium,MVM
join:2001-03-19
Palmdale, CA
| reply to joemaloy
Most managed router solutions do not involve the provider visiting you onsite.
So you would have to plug the router into the T-1 jack, plug yourself into the LAN jack and if they use a modem to configure the router, connect the modem to the router and the modem to the phone jack. They will talk you through all this on the phone.
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CCNA, Comtrain Certified Tower Climber |
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