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Chapter 1
Your ISDN Internet Router

This Chapter covers the features and physical details of your ISDN Internet Router.

Features

The ISDN Internet Router incorporates many advanced features, carefully designed to provide sophisticated functions while being easy to use.

LAN Features

Internet Access Features

ISDN Features

Configuration & Management

Advanced Functions

Security Features

Firewall Protection

The firewall protection provided by the ISDN Internet Router is an intrinsic side effect of IP sharing. All users on the LAN share a single external IP address. From the external viewpoint, there is no network, only a single device.
For internal users, the ISDN Internet Router acts as a "transparent proxy server", translating the multiple internal IP addresses into a single external IP address.
For external requests, any attempt to connect to local resources is blocked. The ISDN Internet Router will not "reverse translate" from a global IP address to a local IP address.
This type of "natural" firewall provides an impregnable barrier against malicious attacks.

Connectors and Components

LEDs - Front Panel

LAN (Hub)
There are 3 LEDs for each Hub port.
Full/Col
ON - indicates the LAN connection is using Full Duplex.
Off - indicates the LAN connection (if any) is using Half Duplex.
Flashing - indicates packet collisions. It is normal to have occasional collisions in half-duplex mode.
Link/Act
On - The Router is successfully connected to a device through the corresponding port (1, 2, 3, or 4).
Flashing - Transmitting or receiving data over the corresponding port.
100
On - LAN port connection is using a 100BaseT connection.
Off - Port is unused or using a 10BaseT connection.
Status
(Orange)
On - Error condition.
Off - Normal operation.
Blinking - This LED blinks during start up.
LAN
(Green)
On - Normal start up/power on sequence, or idle.
Flashing - Transmitting or receiving data over LAN ports.
WAN
There are 2 LEDs for the WAN connection:
Data:
Flashing - data is being transmitted or received via either or both of the ISDN "B" Channels.
Off - the "B" Channel connections are idle.
Link/Act:
ON - the ISDN "D" channel connection is established. (The "D" channel is used for signaling and control, not for data.)
Off - the "D" channel connection is idle.

Rear Panel

Figure 1: Rear Panel

WAN Port
This port is connected to the S/T connector on your ISDN NT1 (Network Terminator 1). A cable is supplied for this connection.
Reset button
When pressed and released, the ISDN Internet Router will reboot (restart).
10/100BaseT LAN Connectors
Use standard LAN cables (RJ45 connectors) to connect this port to your PCs. Both 10BaseT and 100BaseT connections can be used simultaneously.
If Port 1 is used, the "Uplink" port can NOT be used.
Uplink Port
Use the "Uplink" port ONLY to connect to a normal port on another hub.
If the "Uplink" port is used, Port 1 can NOT be used.
Power Input
Connect the supplied power adapter here.
DIP Switches
(on base)
Refer to the following table.

DIP Switches

SW1

SW2

Description

OFF
OFF
Normal operation (default)
OFF
ON
DHCP Server disabled.
ON
OFF
Restore device IP and password (see below)
ON
ON
Normal Operation

Restore Device IP Address and Password

Use the following procedure to:

Procedure:

  1. Power off the ISDN Internet Router.
  2. Set DIP switch 1 to ON, and switch 2 to OFF.
  3. Power on the ISDN Internet Router
  4. Operate DIP switch 1 in the following sequence (you have 15 seconds to complete the sequence):
  5. If everything is OK, the Status LED should flash once after about 5 seconds.
    The ISDN Internet Router is now ready for use with the default IP Address and password.

Specifications

Dimensions
195mm(W) * 130mm(D) * 33mm(H)
Operating
Temperature
0° C to 40° C
Storage
Temperature
-10° C to 70° C
Network Protocol:
TCP/IP
Ethernet Interface:
4 * 10/100BaseT (RJ45) auto sensing Switching hub ports
1 * 10/100BaseT (RJ45) "Uplink" port
ISDN Interface:
1 * RJ45 for S/T interface
LEDs
16 LEDs
External Power Adapter
12 V DC

FCC Statement:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

CE Marking Warning

This is a Class B product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.



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