12 CHAPTER 1: OVERVIEW
other network services for data transmissions while allowing voice
channels to be used simultaneously.
The VCN AP connects to the VCN AC via a standard copper wire pair. The
VCN AC connects to the analog PBX or local telephone exchange and to
a 10 Base-T switch, e.g. 3Com® VCN Services Switch 10.
After connecting the telephone and the computer to the VCN AP, a
person can send data from his computer and speak on the telephone
simultaneously. An additional telephone extension based on the same
cable remains available for conversation but, does not go through the
VCN AC since the two telephones do not share the same wire pair.
Thus a hotel or a residence that installs Visitor and Community Network is
able to add many more communication services without losing any
existing capability.
The VCN AP joins voice and data channels in the direction of the VCN AC
and separates voice and data channels toward the end user.
The Visitor and Community Network System facilitates intra-campus data
communications over a high speed Local Area Network (LAN), i.e.,
Intranet. If the campus is connected to an ISP, the system enables the
users on the campus to use the Internet.
Existing LAN infrastructure can be extended to locations currently lacking
LAN cabling through the Visitor and Community Network system.
Services that do not need the LAN, for example, voice and fax, continue
to operate normally.
VCN Access Point Features
The VCN Access Point has the following features:
■The VCN AP is a network access device that allows a user to have an
Ethernet data connection, available in most PCs and laptops, over a
telephone extension line and simultaneously use the same line for
telephone calls.
■Voice traffic is carried in its native frequency band over the copper pair
wire which connects the VCN AP to the VCN AC.
■The VCN AP combines voice and data in the direction of the VCN AC,
which separates voice and data, by sending voice to the analog PBX