NETGEAR RT338 User Manual

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Congratulations on your purchase of a NETGEAR™ Model RT338 ISDN
Router.

This document provides instructions to get you connected to an ISDN Internet
service line using the NETGEAR Model RT338 router and your personal
computer. The document is only a quick reference guide. For more detailed
information about installation and configuration, refer to

Router Installation Guide

included on the Model RT338 Resources CD.

Model RT338 ISDN

Product Illustration

Front Panel

The front panel of the Model RT338 router contains status LEDs. Refer to the
illustration and table below for descriptions of the LEDs on the front panel of
the router.

Front Panel of the Model RT338 Router

LAN LEDs

Phone LEDs

MODEL

LAN ISDN

PWR TEST LNK/ACT

Power switch

Label

PWR (Power)
TEST Blinking/Off If this LED blinks during initialization and then turns off, the

LAN
LNK/ACT

(Link/Activity)

100 Off

ISDN
D On Router is synchronized with the attached ISDN line.
B1

B2
1 (Phone) On An analog device (telephone, fax, or modem) connected to the

2 (Phone) On An analog device connected to the Phone 2 port is in use.

Activity Description

On Power is supplied to the router.

router is functioning properly.

On
Blinking

On

On
On

Link has been detected on the LAN port.
A data packet is being sent or received on the port.

LAN is operating at 10 Mbps.
LAN is operating at 100 Mbps.

ISDN B channel is sending or receiving a call.
ISDN B channel is sending or receiving a call.

Phone 1 port is in use.

100 B1DB212

Test LED

ISDN LEDs

RT338

9534FA

Model RT338 ISDN Router Installation Guide

Rear Panel

Refer to this diagram to identify all the ports on the router when you attempt to
make any connections.

Rear Panel of the Model RT338 Router

AC adapter outlet

ISDN port

POWER

12VDC

Power switch

LAN

LAN port

MANAGER

RS-232
Manager port

ISDN

PHONE 1

PHONE 2

Phone
ports

9535FA

Installing the Hardware

Refer to the following illustration and steps when connecting the router.

Installing the Model RT338 Router

ISDN wall

connection

POWER

12VDC

PCs

or hubs

AC power
adapter

LAN

Network
manager
(optional)

MANAGER

ISDN

PHONE 2

PHONE 1

Phone or other
analog devices

Phone or other
analog devices

9536FA

To connect your router:

1. Connect your PC or hub to the LAN port:

• Use the

red

crossover cable included to connect the router directly to

a PC.

white

• Use the

straight-through cable included to connect the router to

a 10 Mbps or 100 Mbps hub or switch port. The router will sense the
speed of the connected port and will automatically set its speed
to match.

Note:

If you are using a 100 Mbps Fast Ethernet network or a mixed

10 Mbps/100 Mbps network, use Category 5 cabling (included).

Model RT338 ISDN Router Installation Guide

2. Connect the analog devices to the phone ports (Phone 1 and Phone 2,
respectively).

3. Connect the ISDN line from the router to the ISDN wall connection.
Use the black cable that is provided.

4. Connect a network manager workstation to the RS-232 port. This step
is optional.

5. Connect the DC power adapter cable to the power outlet on the rear
panel of the switch and plug the power adapter into the wall outlet.

Prepare the Router

Do the following to prepare your router:

• Order ISDN service from the phone company.

• Configure your PC to use the TCP/IP networking protocol.

• Order Internet service from an Internet service provider (ISP).

The following section provides an overview of the requirements.

Ordering an ISDN Line

Contact the ISDN sales center of the phone company and order an ISDN Basic
Rate Interface (BRI) phone line. In North America, provide the phone company
with an ISDN ordering code (IOC). NETGEAR recommends codes IOC “U” or
EZ-ISDN1 for the Model RT338 router. Additional information about ordering
an ISDN line can be found in the

When the ISDN line is installed, make sure you have the following information:

• ISDN directory number(s)

• Service profile identifier numbers (SPIDs) (North America only)

• Switch type and protocol of the switch (such as National ISDN NI-1) used

at the telephone company (North America only)

Order any additional ISDN or phone service at this time.

Model RT338 ISDN Router Installation Guide .

Setting up Your Network

The Model RT338 router uses the Internet Protocol (IP). To access the Internet
using the Model RT338 router, all PCs must have TCP/IP installed and selected
as their networking protocol. TCP/IP is built into Windows® 95, Windows 98,
and Windows NT® but must be enabled and configured. Refer to “Configuring
TCP/IP Properties” for instructions to install IP networking.

In an IP network, all PCs must be assigned IP addresses. Most LANs use private
IP addresses. These addresses are assigned automatically by the Model RT338
router whenever a PC reboots. Refer to “Using Private IP Addresses” for
instructions to use private IP addressing.

Model RT338 ISDN Router Installation Guide