US Telco Support > AT&T > AT&T West > Project Pronto and Alcatel 1000

reply to kenspi

Re: Project Pronto and Alcatel 1000

reply to kenspi

Thanks everybody for the help and encouragement.

A couple of more questions related to obtaining sync:
-If the Alcatel 1000 modem is powered up but unattached to
my computer, can it still get sync?
I have in mind taking it to the point-of-entry for my
telephone service, and trying out the different
possibilities for coupling the two telephone wires into
the jack on the Alcatel.
-Presumably I can't hurt the modem by plugging the telephone
lines into the wrong line on the input jack of the modem?
-My Alcatel is a Model 3Ec 18202 AB, which is good for
Bridged DSL service without filtering.
Another model exists which is "with administrative
filtering". Could this be an issue in obtaining sync?

Thanks very much,

Bob

P.S. A big OpEd page article in the NYT today claims
broadband is going the bring our economy back to
life....

Plugging the DSL modem into any ole' jack shouldn't cause problems with the modem, and you don't need a computer connected to get sync.

When trying a jack, just make sure the DSL line is connected to pins 2 & 5 (see drawing), and that you have a 4-wire (2-line) cable going from the wall to the modem. Remember: the Alcatel modem uses a different pair of wires than a standard single-line phone. If you use a cable that is only 1-line capable, it won't work.



Good luck!
---Ken
[text was edited by author 2001-12-11 01:59:48]

said by BobH_dsl:

---

My Alcatel is a Model 3Ec 18202 AB, which is good for
Bridged DSL service without filtering.
Another model exists which is "with administrative
filtering". Could this be an issue in obtaining sync?

---

reply to kenspi
Description of Alc + Linksys Setup up for DSLReports
====================================================

This is a description of what was req'd to get my
Alcatel 1000 modem (Model 3Ec 18202AB, on barcode) working.
The modem was connected with a Linksys BEFW11S4 Etherfast
Wireless Access Point +Cable/DSL Router with 4-port
switch (i.e., Ethernet wired/RF router. and thence to my computers.

The PacBell service in North County San Diego (through my
zNET ISP)is set up for a bridge connection to their network,
giving me a fixed IP number and a Gateway IP out on their
network.

I had chosen self-install + my own equipment: Got the
Alcatel 1000 from an Internet contact, but with no wires.

To get Sync on the Alcatel 1000 modem/bridge, all that was
needed was to plug it in and have the correct wire setup
from the telephone/DSL jack to the modem. For Sync, the
modem doesn't need to be connected to anything else. (I
found the correct wire setup with a loaner Cayman modem
+ cables provided by my ISP, after floundering around as
in previous messages. Kenspi first got me pointed in the
right direction.)

I used a regular 4 line telephone wire. At the wall jack
end, the DSL only uses the middle two wires (Red and Green,
positions 3 and 4 in Kenspi's above diagram). By examining
the working loaner cable, the R and G wires are connected to
positions 5 and 2 at the modem end of the cable. I cut the
regular 4 wire telephone cable and connected the R,G (at wall
end) to the Yellow,Black (at modem end), respectively.
This gave sync. The wires were simply twisted together
and taped over. These connections must be what DSLXRay
achieves with the Radio Shack connectors. (Download speed
is 0.5 Mbps, so maybe my finger twisted connections are
good enough?)

As Kenspi pointed out, the Alcatel 1000 is accessible by WEB
browser at »10.0.0.138/ . This is a non-routable IP
number, so the Alcatel had to be connected directly (by RJ-45
ethernet cable) to my computer, and my computer/ethernet card
must be set up with an IP number on the 10.0.0.0 network
(I used 10.0.0.12, to be specific). Then Netscape accessed
the Alcatel, and I was able to change the VPI/VCI settings
to the required 0/35, from the default 8/35 settings.
These changes could only be made after getting sync: makes
some sense, since these settings are properties of the
PacBell network.

The Alcatel ethernet cable is then disconnected from the
computer, and connected to the Linksys router input.
The Linksys is browser accessible at »192.168.1.1,
another non-routable IP number. So, I set my computer
up with IP address on the 192.169.1.0 network, specifically
192.168.1.12. The GATEWAY device for my computer is the
router, with IP 192.168.1.1. Ethernet connecting my computer
to the Linksys, Netscape was able to attach to the
above router URL. I set the router IP (at the outside
of this gateway device) to the fixed IP provided by my
ISP, with external GATEWAY at another IP provided by them.

This gave me connectivity to the Internet. My computer is
a Linux system, but this didn't seem to have any bearing
on the setup. I can SSH into my computer from the outside.
Another Linux box with a given 192.168.1.x IP number was simply
connected to the router by Cat5 RJ-45 straight through
cable. Two additional Windows machines are connected
via RF: the desktop uses a USB Linksys WUSB11 network adapter,
and the laptop uses a Linksys WPC11 Wireless network PC card.
The latter two connections were straight-forward, using the
provided driver software. At about 50 feet distance, the
transfer rate between my computer through the router
to the RF adapter machines is about 3.5Mbps.

Thanks very much to the above people for their help!

Now a happy camper, BobH_dsl