Video Systems - Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
5 Data Communications
About Data and Video Communications
Guidelines for creating DHGs are contained in
in this chapter.
Data Hunt Group Configurations
The following DHG configurations work on the system:
ISDN Terminal Adapters. Allows communications with the local host
computer or a workstation (gateway) to a LAN.
Modems. Allows communications with the local host computer or a
workstation (gateway) to a LAN.

Video Systems

A video system is a hardware configuration that provides video teleconferencing.
The video systems use both B-channels (2B Data) associated with an MLX port to
achieve data rates of up to 128-kbps when using PRI or NI-1 BRI facilities, and
112-kbps when using T1 Switched 56 facilities.
There are two basic types of video teleconferencing:
Personal Videoconferencing. This type, also referred to as Desktop
Videoconferencing, typically is a single user communicating with another
individual using their PC.
Group Videoconferencing. This type, as the name implies, allows larger
groups of people to communicate with another group at a different location.
Personal Videoconferencing
A personal videoconferencing system typically consists of a video camera and an
audio unit connected to a PC. The PC, when equipped with a BRI interface card,
can connect directly to any available MLX port on a 408 GS/LS MLX, 408 GS/LS-
ID-MLX, 008 MLX, or 016 MLX module.
The MLX port must be configured as a 2B Data port in order to provide the
necessary high-speed data connection needed to support video applications. The
network facilities used by the endpoint connected to the MLX port may be PRI, T1
Switched 56 (both provided by the 100D module), or NI-1 BRI (provided by the
800 NI-BRI module) facilities.
NOTE:
Some applications also provide data and application sharing and transfer
capabilities (video collaboration) in addition to videoconferencing.
This configuration, in which the personal video system is the only device
connected to the MLX port, is called the Stand-alone configuration. Some
personal video systems also offer the capability to support a Passive Bus
configuration. See Figure 5-6 in the next section for a sample connection diagram.
''Creating Data Hunt
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Issue 1
April 1999
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Groups," later