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61

Appendix A:

Specification

Appendix A:

Specification

Appendix A:

Specification

Appendix A:

Specification

Appendix A:

Specification

Model Name

NB4

Line Connection

RJ-11(2 wires) , RJ-45 (4 port)

ADSL Features

DMT modulation and demodulation

Tone detection for low power mode

ITU 992.1 (G.dmt) Annex A, B, C

ITU 992.2 (G.lite)

ITU 992.3 ADSL2 (G.dmt.bis)

ITU 992.4 ADSL2 (G.lite.bis)

ITU 992.5 ADSL2+

ANSI T1.413 Issue 2

Full-rate adaptive modem

Maximum downstream rate of 8 Mbps ,12Mbps(ADSL2)

Maximum upstream rate of 1 Mbps

G.lite adaptive modem

Maximum downstream rate of 1.5 Mbps

Maximum upstream rate of 512 Kbps

WAN Mode Support

PPP over ATM (RFC 2364)

PPP over Ethernet (RFC 2516)

LAN Mode Support

Bridged/routed Ethernet over ATM (RFC 2684/1483)

Classical IP over ATM (RFC 1577) and PPP over Ethernet

(RFC 2516)

Bridge Mode Support

Ethernet to ADSL self-learning Transparent Bridging (IEEE

802.1D)

Supports up to 128 MAC learning addresses

Router Mode Support

IP routing-RIPv2 (backward compatible with RIPv1)

Static routing

DHCP (Dynamic Host Configuration Protocol) Server and

Client

NAPT (Network Address and Port Translation)

NAT (Network Address Translation)

ICMP (Internet Control Message Protocol)

Simultaneous USB and Ethernet operation

IGMP (Internet Group Management Protocol)

Ethernet Features

ONE RJ-45 connectors for 10/100 Mbps Ethernet LAN

connection,

DMZ function can be set up between them

Complies with IEEE 802.3u specification

Supports IEEE 802.3x Flow control in Full Duplex mode

PTT and Safety

A-Tick N367

OS

Win-98SE, Win-2000, Win-Me, Win-XP, Mac, Linux.

System Requirement

PII-266 + 32M RAM

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Power

External AC Power

Input : 240Volts AC, 50Hz.

Output : 7.5VDC/1.5A

LED Indication

Power, LAN1, LAN2, LAN3, LAN4, ADSL Link/Act

SIZE

142mm x 112mm

Software Upgrade

Upgrade by Ethernet Port

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NB4 User Guide

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63

Appendix B:

Cable Connections

Appendix B:

Cable Connections

Appendix B:

Cable Connections

Appendix B:

Cable Connections

Appendix B:

Cable Connections

This cable information is provided for your reference only.

Please ensure you only connect

the appropriate cable into the correct socket on either this product or your computer.

If you are unsure about which cable to use or which socket to connect it to, please refer to the

hardware installation section in this manual. If you are still not sure about cable connections,

please contact a professional computer technician or NetComm for further advice.

RJ-45 Network Ports

RJ-45 Network Ports can connect any networking devices that use a standard LAN interface,

such as a Hub/Switch Hub or Router. Use unshielded twisted-pair (UTP) or shield twisted-pair

(STP) cable to connect the networking device to the RJ-45 Ethernet port.

Depending on the

type of connection, 10Mbps or 100Mbps, use the following Ethernet cable, as prescribed.

10Mbps: Use EIA/TIA-568-100-Category 3, 4 or 5 cable.

100Mbps: Use EIA/TIA-568-100-Category 5 cable.

Note:

Note:

Note:

Note:

Note:

To prevent loss of signal, make sure that the length of any twisted-pair

To prevent loss of signal, make sure that the length of any twisted-pair

To prevent loss of signal, make sure that the length of any twisted-pair

To prevent loss of signal, make sure that the length of any twisted-pair

To prevent loss of signal, make sure that the length of any twisted-pair

connection does not exceed 100 metres.

connection does not exceed 100 metres.

connection does not exceed 100 metres.

connection does not exceed 100 metres.

connection does not exceed 100 metres.

Figure 1

Twisted pair cables

Figures 1 and 2 illustrate the use of straight-through and crossover twisted pair cables along

with the connector.

Figure 2

RJ-45 plug

attached to cable

RJ-45 Connector

Pin Assignment

Normal Assignment

1

Input Receive Data +

2

Input Receive Data -

3

Output Transmit Data +

6

Output Transmit Data -

4,5,7,8

Not used

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Straight and crossover cable configuration

Figure 3

Figure 4

RJ11 connector and cable

An RJ-11 connector is the small, modular plug used for most analog telephones. It has six pin

slots in the head, but usually only two or four of them are used.

Figure 5

RJ-11 Connector

Pin Assignment

Normal Assignment

1

Not Connected

2

Not connected

3

Line

4

Line

5

Not Connected

6

Not Connected

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605 to RJ-11 adapter

The 605 to RJ-11 adaptor is provided to comply with the older 610 Telstra wall socket.

The 605

to RJ-11 adapter may be used to convert the supplied RJ-11 cable, if the older connection is

required.