Professional Support
for RDSL

If you're a network administrator or a phone technician who is supporting a mutual customer of ours, you've found the right place!

Basic configuration is available here, as well as phone numbers to reach us for questions.

Installation

Instructions

Get a copy of LISCO's RDSL installation manual here.

Standard DSL install requires your gateway device to get setup info from our DHCP server, and all of the devices in the LAN to obtain info automatically from the gateway device.

If static IPs were ordered, and you don't know where they are, please call (800) 331-8414 and ask for the RDSL department.

When?

Service will come up sometime between 8:00 AM and 5:00 PM on the specified due date. We can't tell you exactly when because the telco doesn't tell us! It's often best to schedule an install for late afternoon or for the morning of the next day.

Noise Filters

All extensions of the line-sharing telephone number will have data noise on them when service becomes active until filters are installed! (If the modem came from LISCO, there will be two single-line filters in the box with it.)

If there are multiple extensions, a filter can be installed at the demark to remove noise before it enters the location.

There are three kinds of noise filters:

• single-line

• multi-line

• wall-style

Extra filters are available at your local Radio Shack or directly from LISCO.

NOTE: Do not install a noise filter between the jack and the modem! It will filter out the DSL!

Networking

DHCP

Each account comes with a single DHCP IP. If you're installing a router or firewall, set it up with the factory defaults and you should be fine.

If there is no DHCP-capable device on your network, additional server-assigned IPs can be provided at an additional charge.

If you just want to change computers, or insert a new router on an existing connection, see these instructions. Our DSLAM stores the MAC address of the NIC card it assigned an IP to. To change devices, you have to release the IP from the first device, and then obtain it with the new device. Otherwise, you'll get a link but no traffic!

If you can't get an IP no matter what you do, please call (800) 331-8414 and ask for the RDSL department. We can check the DSLAM configuration, release IPs, reset the connection for you, etc.

Static

Static IP addresses are also available for an additional charge.

If static IPs were ordered, and you don't know where they are, please call (800) 331-8414 and ask for the RDSL department.

Inside Wiring

Noise problems

There are wiring problems known to cause excessive noise when DSL is activated. These include bridge taps and tip & ring reversals.

If you're a phone tech working on a DSL noise problem and need advanced advice, please call (800) 331-8414 and ask for the RDSL department.

Phone systems

DSL may be ordered on a line that goes into a PBX or KSU and is part of a rollover group, however, the line must be filtered before the key unit or there will be noise on all extensions when that line is used.

Run a jack off of the demark and put the DSL modem on it. Then run a line from the PHONE port on the back of the modem to the key system. (The modem has a built-in noise filter.) Run Ethernet from the modem to the computer or server the client wants Internet available to.

No dial tone

If dial tone is lost on your service due date, please contact LISCO immediately at (800) 331-8414 and ask for the RDSL department! While this is an exceedingly rare occurrence, it indicates a faulty cable pair somewhere that must be corrected immediately for dial tone to be restored.

Overview

See a basic diagram of how DSL works.

Hardware

LISCO uses RDSL, a Paradyne Hotwire technology, to deliver DSL over POTS. If, for some reason, you want the vendor's installation instructions, you can get them here.

Paradyne manuals

The 6310 modem manual is available here.

The 6350 modem manual is available here.

The single-line noise filter manual is available here.

The wall-mount noise filter manual is available here.

The 6035 noise filter manual is available here.

Troubleshooting

See the Trouble section for basic networking help.

For a list of technical definitions, click here.