Digital Subscriber Line What is it called?

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Subject Author Date
What is it called? Vic Dura 06-22-06
---> Re: What is it called? Robert Redelmei...06-22-06
Posted by Vic Dura on June 22, 2006, 1:32 pm
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What is the correct terminology for the "device" out on the street
which contains the DSL electronics. This is the device where the wire
from the point of service (home) Network Interface Device box
terminates. Remote Terminal? Local Multiplexor?
--
At first they laugh at you, then they ignore you, then they fight you, then you
win.

Posted by Robert Redelmeier on June 22, 2006, 1:39 pm
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> What is the correct terminology for the "device" out on the street
> which contains the DSL electronics. This is the device where the
> wire from the point of service (home) Network Interface Device
> box terminates. Remote Terminal? Local Multiplexor?

It is usually not "out on the street" [pedestal]. A DSLAM
(DSL Access Module) is usually located in a CO (Central
Office) or RT (Remote Terminal) where it can get power and
an upstream datafeed.

-- Robert


Posted by Vic Dura on June 22, 2006, 2:46 pm
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On Thu, 22 Jun 2006 17:39:53 GMT, Robert Redelmeier

>> What is the correct terminology for the "device" out on the street
>> which contains the DSL electronics. This is the device where the
>> wire from the point of service (home) Network Interface Device
>> box terminates. Remote Terminal? Local Multiplexor?
>
>It is usually not "out on the street" [pedestal]. A DSLAM
>(DSL Access Module) is usually located in a CO (Central
>Office) or RT (Remote Terminal) where it can get power and
>an upstream datafeed.

Around here we have these "devices" that are about the size of a large
refrigerator or two. They are located on side of the road on concrete
pads. There aren't many of them, only about one per neighborhood. The
do have power to them as they have electric power meters on them. The
phone wire from nearby homes goes to these devices which handle both
DSL and voice. I think they may be called "Remote Terminal" but am not
sure. The device in my neighborhood always provided our voice service,
but we could not get DSL until this device was upgraded and enlarged
last year.

There is about 1700 feet of wire from the device to my NID and I have
1.5Mbps DSL service, but I only get about 60% of that speed on
average. That seems low to me given how short the wire is to the
device. Does "Remote Terminal" seem to be the correct term for it?
--
At first they laugh at you, then they ignore you, then they fight you, then you
win.

Posted by Robert Redelmeier on June 22, 2006, 4:11 pm
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> Around here we have these "devices" that are about the size
> of a large refrigerator or two. They are located on side

We have such things, but they aren't very deep, and don't
contain active electronics. Our DSLAMs are in the RT,
a prefab 8x10x20' building.

I guess telco practice can vary, but I'd look very carefully for
weatherproofed cooling air vents on your box. Probably with fans.

> There is about 1700 feet of wire from the device to my NID
> and I have 1.5Mbps DSL service, but I only get about 60%
> of that speed on average. That seems low to me given how

It seems low to me too. When I had 1.5 service about 3000
wire-feet from my RT, I'd get 1.3 Mbit/s download speed from
test sites, and 140 kByte/s ftp downloads. Check for good line
connections, and no unfiltered devices (like alarm systems).

-- Robert




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What is it called? June 22, 2006, 1:32 pm