Accton Technology WG3005BACC Users Manual

A

USING DISCOVERY

Running the Discovery
Application

Windows Installation

(95/98/2000/Me/NT)

3Com provides a user friendly Discovery application for detecting the
OfficeConnect Wireless Cable/DSL Gateway on the network.

1 Insert the Gateway CD-ROM in the CD-ROM drive on your computer. A menu will

appear; select Gateway Discovery.

Note: Discovery will find the Gateway even if it is unconfigured or misconfigured.

Figure 57 Discovery Welcome Screen

2 When the Welcome screen is displayed click on Next and wait until the application

discovers the Gateways connected to your LAN.

Figure 58 Discovered Gateway Screen

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3 Figure 59 shows an example Discovered Devices screen. Highlight the Wireless

Cable/DSL Gateway by clicking on it, and press Next.

Figure 59 Discovery Finish Screen

4 Click on Finish to launch a web browser and display the login page for the

Gateway.

B

IP ADDRESSING

The Internet Protocol
Suite

Managing the
Cable/DSL Gateway
over the Network

IP Addresses and Subnet

Masks

The Internet protocol suite consists of a well-defined set of communications
protocols and several standard application protocols. Transmission Control
Protocol/Internet Protocol (TCP/IP) is probably the most widely known and is a
combination of two of the protocols (IP and TCP) working together. TCP/IP is an
internationally adopted and supported networking standard that provides
connectivity between equipment from many vendors over a wide variety of
networking technologies.

To manage a device over the network, the Cable/DSL Wireless Gateway must be
correctly configured with the following IP information:

■

An IP address

■ A Subnet Mask

Each device on your network must have a unique IP address to operate correctly.
An IP address identifies the address of the device to which data is being sent and
the address of the destination network. IP addresses have the format n.n.n.x
where n is a decimal number between 0 and 255 and x is a number between 1
and 254 inclusive.

However, an IP Address alone is not enough to make your device operate. In
addition to the IP address, you need to set a subnet mask. All networks are divided
into smaller sub-networks and a subnet mask is a number that enables a device to
identify the sub-network to which it is connected.

For your network to work correctly, all devices on the network must have:

■ The same sub-network address.

■ The same subnet mask.

The only value that will be different is the specific host device number. This value
must always be unique.

An example IP address is ‘192.168.100.8’. However, the size of the network
determines the structure of this IP Address. In using the Gateway, you will
probably only encounter two types of IP Address and subnet mask structures.

Typ e O n e

In a small network, the IP address of ‘192.168.100.8’ is split into two parts:

■

Part one (‘192.168.100’) identifies the network on which the device resides.

■

Part two (‘.8’) identifies the device within the network.

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DDRESSING

This type of IP Address operates on a subnet mask of ‘255.255.255.0’.

See Table 3 for an example about how a network with three computers and a
Wireless Cable/DSL Gateway might be configured.

Tab l e 3 IP Addressing and Subnet Masking

Device IP Address Subnet Mask

PC 1 192.168.100.8 255.255.255.0

PC 2 192.168.100.33 255.255.255.0

PC 3 192.168.100.188 255.255.255.0

Wireless Cable/DSL
Gateway

192.168.100.72 255.255.255.0

Typ e Two

In larger networks, where there are more devices, the IP address of
‘192.168.100.8’ is, again, split into two parts but is structured differently:

■

Part one (‘192.168’) identifies the network on which the device resides.

■ Part two (‘.100.8’) identifies the device within the network.

How does a Device
Obtain an IP Address
and Subnet Mask?

This type of IP Address operates on a subnet mask of ‘255.255.0.0’.

See Table 4 for an example about how a network (only four computers
represented) and a Wireless Cable/DSL Gateway might be configured.

Tab l e 4 IP Addressing and Subnet Masking

Device IP Address Subnet Mask

PC 1 192.168.100.8 255.255.0.0

PC 2 192.168.201.30 255.255.0.0

PC 3 192.168.113.155 255.255.0.0

PC 4 192.168.002.230 255.255.0.0

Wireless Cable/DSL
Gateway

192.168.002.72 255.255.0.0

There are three different ways to obtain an IP address and the subnet mask. These
are:

■

Dynamic Host Configuration Protocol (DHCP) Addressing

■ Static Addressing

■

Automatic Addressing (Auto-IP Addressing)

DHCP Addressing The Wireless Cable/DSL Gateway contains a DHCP server, which allows computers

on your network to obtain an IP address and subnet mask automatically. DHCP
assigns a temporary IP address and subnet mask which gets reallocated once you
disconnect from the network.

DHCP will work on any client Operating System such as Windows

®

95, Windows
98 or Windows NT 4.0. Also, using DHCP means that the same IP address and
subnet mask will never be duplicated for devices on the network. DHCP is
particularly useful for networks with large numbers of users on them.

How does a Device Obtain an IP Address and Subnet Mask? 65

Static Addressing You must enter an IP Address and the subnet mask manually on every device.

Using a static IP and subnet mask means the address is permanently fixed.

Auto-IP Addressing Network devices use automatic IP addressing if they are configured to acquire an

address using DHCP but are unable to contact a DHCP server. Automatic IP
addressing is a scheme where devices allocate themselves an IP address at random
from the industry standard subnet of 169.254.x.x (with a subnet mask of

255.255.0.0). If two devices allocate themselves the same address, the conflict is
detected and one of the devices allocates itself a new address.

Automatic IP addressing support was introduced by Microsoft in the Windows 98
operating system and is also supported in Windows 2000.

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DDRESSING

TECHNICAL SPECIFICATIONS

C

This section lists the technical specifications for the OfficeConnect Wireless
Cable/DSL Gateway.

Interfaces Cable or DSL modem connection - 10/100 FD.

LAN connection - four 10Mbps/100Mbps dual speed Ethernet ports
(10BASE-T/100BASE-TX)

WLAN Interface Standard IEEE 802.11b, Direct Sequence Spread Spectrum (DSSS)

Transmission rate: 11Mbps, automatic fallback to 5.5, 2 or 1Mbps
Maximum channels: 13
Range up to 304.8m (1000ft)
Frequency: (US/Canada/Europe) 2.400-2.4835 GHz
Sensitivity: 1,2,5.5Mbps: -80dBm; 11Mbps -76dBm typical
Modulation: CCK, BPSK, QPSK
Encryption: 40/64bit, 128 bit WEP
Maximum clients: 32
O/P Power 15dBm

Operating Temperature 0 °C to 40 °C (32 °F to 105 °F)

Power 7VA, 23.9 BThU/hr

Humidity 0 % to 90 % (non-condensing) humidity

Dimensions

Weight Approximately 592 g (1.3 lbs)

Standards

■

Width = 220 mm (8.7 in.)

■ Depth = 135 mm (5.3 in.)

■

Height = 24 mm (1 in.)

Functional: ISO 8802/3

IEEE 802.3
IEEE 802.11b, WiFi

Safety: UL 1950, EN 60950

CSA 22.2 #950
IEC 60950

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ECHNICAL SPECIFICATIONS

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EMC: EN 55022 Class B

EN 55024
AS/NZS 3548 B
FCC Part 15 Class B*
ICES-003 Class B
VCCI Class B
CNS 13438 Class A
ETS 300-826

Radio CFR 47 FCC Part 15.207, 15.209, 15.247 and 15.249.

ETS 300 328 (2.4 GHz ISM band wide band transmission systems)

Environmental: EN 60068 (IEC 68)

*See “Safety Information” on page 69 for conditions of operation.

System Requirements

Operating Systems The Wireless Cable/DSL Gateway will support the following Operating Systems:

■

Windows 95/98

■

Windows NT 4.0

■ Windows ME

■ Windows 2000

■

Windows XP

■ Mac OS 8.5 or higher

■

Unix

Ethernet Performance The Wireless Cable/DSL Gateway complies to the IEEE 802.3i, u and x

specifications.

Wireless Performance

Cable Specifications

The Wireless Cable/DSL Gateway complies with the IEEE 802.11b specification and
conforms to the WiFi interoperability test standard.

The Wireless Cable/DSL Gateway supports the following cable types and
maximum lengths:

■

Category 3 (Ethernet) or Category 5 (Fast Ethernet or Dual Speed Ethernet)
Twisted Pair — shielded and unshielded cable types.

■

Maximum cable length of 100m (327.86 ft).

D

SAFETY INFORMATION

Important Safety
Information

WARNING: Warnings contain directions that you must follow for your personal
safety. Follow all directions carefully.
You must read the following safety information carefully before you install or
remove the unit:

WARNING: The Gateway generates and uses radio frequency (rf) energy. In some
environments, the use of rf energy is not permitted. The user should seek local
advice on whether or not rf energy is permitted within the area of intended use.

WARNING: Exceptional care must be taken during installation and removal of the
unit.

WARNING: Only stack the Gateway with other OfficeConnect units.

WARNING: To ensure compliance with international safety standards, only use the

power adapter that is supplied with the unit.

WARNING: The socket outlet must be near to the unit and easily accessible. You
can only remove power from the unit by disconnecting the power cord from the
outlet.

WARNING: This unit operates under SELV (Safety Extra Low Voltage) conditions
according to IEC 950. The conditions are only maintained if the equipment to
which it is connected also operates under SELV conditions.

WARNING: There are no user-replaceable fuses or user-serviceable parts inside the
Gateway. If you have a physical problem with the unit that cannot be solved with
problem solving actions in this guide, contact your supplier.

Wichtige
Sicherheitshinweise

WARNING: Disconnect the power adapter before moving the unit.

WARNING: RJ-45 ports. These are shielded RJ-45 data sockets. They cannot be

used as telephone sockets. Only connect RJ-45 data connectors to these sockets.

ACHTUNG: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer eigenen
Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu befolgen.
Sie müssen die folgenden Sicherheitsinformationen sorgfältig durchlesen, bevor Sie
das Geräts installieren oder ausbauen:

ACHTUNG: Der Gateway erzeugt und verwendet Funkfrequenz (RF). In manchen
Umgebungen ist die Verwendung von Funkfrequenz nicht gestattet. Erkundigen
Sie sich bei den zuständigen Stellen, ob die Verwendung von Funkfrequenz in dem
Bereich, in dem der Bluetooth Access Point eingesetzt werden soll, erlaubt ist.

ACHTUNG: Bei der Installation und beim Ausbau des Geräts ist mit höchster
Vorsicht vorzugehen.