sundance-communications.com/forum Forums General General Telephone & Systems Information DSL

I'm doing some charity work for a nonprofit org. in my community and they have a DSL line for their internet and the number attached is used for their fax. I put the filter on at the fax and it works great, but know internet connection.

My question to you is, when I hook a buttset up to a nonfiltered DSL, right from the NID; what should I hear?
I thought I would hear static data, but I'm getting dial tone and that can't be right.

Are there communication lights blinking on the modem?

The DSL service that I had installed at my home did not have any hiss at all, but I still installed a filter for it. Without the modem connected, you probably won't hear much of anything but clear dial tone at the NID.

The DSL modem is pretty much a no-brainer. If it's receiving signal, the LED's on it will tell you. There is one LED just to indicate the presence of signal.

Yes, the uplink is amber. I can't remember if it was flashing or solid.

You should probably call the DSL provider and ask them if they can "see" the modem. Out of box failures on DSL modems are all too common.

Who is you DSL provider?

The CO needs to see the modem and if it doesn't it shuts down the DSL carrier. So if the modem is not connected or not communicating you won't hear a "sizzle" on the line with your butt set.

In some cases your butt set (or an unfiltered phone, etc) will interrupt the DSL.

I think you are saying that this is a new service and you are connecting it up for them and the DSL isn't working? The link or DSL LED should (depending on the modem) turn steady green shortly after you connect the line. If not call the service provider. Usually their screw up.

-Hal

Office --------------------------Home
Dialtone -----wire---------------phone
or:
Dialtone-filter----wire---filter-----phone
DSLAM----------/.........\-----------DSL modem

The dial tone appears *everyhere*

At the Central Office the dialtone is routed through a filter to block the DSL signal, the DSL signal is added to the line in addition to the dial tone.

At the house, the dialtone is routed through a filter to block the DSL signal from the telephones (fax machine, dial-up modem, etc..) THe DSL signal is connected without any filter to the DSL modem, along with the dial tone that, as noted, is everywhere.

As always, there are exceptions; one such being an MTU -- maintanance test unit. This is a little circuit board (about 1 inch square) completely sealed in black epoxy, which allows the MLT (mehanized line test) to disconnect your house wire from the cable. It tends to block DSL signals.

Plug in the DSL modem, power on. Should have a DSL LED that comes on and blinks slowly as it looks for a DSL signal. If it finds one it will blink faster as it tries to connect. Once connected it will go on solid. This is your physical link. Your modem is talking to the phone company's modem.

If you do not get the steady DSL you have NO SYNC. Move the DSL modem to the MPoE, where your wire ends and the TelCo wire starts. Connect, power on, if you still have no sync it is THEIR PROBLEM (or a bad modem) -- call them.

Assuming Sync, you (the modem, router, computer, whatever) needs to negotiate a connection. How depends on who the provider is. With AT&T/SBC/Yahoo! it is a PPPoE connection requiring a log-in with username and password. The DSL provider should have a support phone number that you can call and they can see if you are configured correctly in the DSLAM and talk you through any software issues on your end.