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YML733 Rev1
NB4 User Guide
www.netcomm.com.au
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
Page 62 / 77
NB4 User Guide
YML733Rev1
62
www.netcomm.com.au
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
Page 63 / 77
YML733 Rev1
NB4 User Guide
www.netcomm.com.au
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
Page 64 / 77
NB4 User Guide
YML733Rev1
64
www.netcomm.com.au
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
Page 65 / 77
YML733 Rev1
NB4 User Guide
www.netcomm.com.au
65
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.

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