6 NB9/NB9W ADSL2+ VoIP Router
YML790 Rev8

NB9/NB9W Package Contents

Your NB9/NB9W contains the following items:
• NB9 or NB9W ADSL2+ Modem Router
• 15VDC 1.6 Amps power supply
• RJ-11 ADSL Line connection cable
• RJ-45 10/100 Ethernet cable
• Removable Antenna
• User Guide (on CD)
• Quick Start Guide

Selected terminology used in this manual

POTS A telephone line used for a standard phone-line and service will be referred to as POTS
(=Plain Old Telephone Service)
Pass-through Line The line that connects the NB9/NB9W to a POTS line may be referred to as a pass-through
line
RJ11 Telephone cables may be referred to as RJ11 which is the format of the connection plug
used for telephones
Ethernet Local area network traffic will be carried by standard Category 5 cable referred to as
Ethernet
RJ45 Ethernet cables may also be referred to as ‘RJ45’ which is the format of the connection plug
used for network devices
LAN Local Area Network
WLAN Wireless Local Area Network
VSP VoIP Service provider

Do I need a micro filter?

Micro filters are used to prevent interference between phones and fax machines, and your ADSL service. If
your ADSL-enabled phone line is being used with any equipment other than your ADSL Modem then you will
need to use one Micro filter for each phone device in use. Telephones and/or facsimiles in other rooms that
are using the same line will also require Microfilters. A suitable Microfilter can be purchased from NetComm
or your Service Provider, if required.

Multi-purpose Gateways and In-line Splitters

The multi-purpose ADSL/VoIP gateway uses a different micro filter configuration to an ADSL modem/router.
With the NB9/NB9W, an in-line splitter is placed between a telephone outlet and the NB9/NB9W. One RJ11
cable is then connected from the splitter’s Phone port to the NB9/NB9W LIne port. Another is connected
from the splitters ADSL or MoDeM port to the NB9/NB9W ADSL port. This is to allow the ‘pass-through’ line
to connect via the POTS if necessary. (See diagram on page 9)