Working; Architecture; Unicast Mode V/S Multicast Mode - Hall Research Technologies VERSA-4K Series User Manual

VERSA-4K

Working

Architecture

VERSA uses Client-Server architecture, where each function such as Video, Audio, USB, IR,
RS-232 is considered as a service. VERSA-4K-S (Sender) being a server, provides services
independently under one Group ID. Each VERSA-4K-R (Receiver) in the network acts a
client and receives a service by joining in the group using Group ID.
A Receiver should have the same Group ID as sender to receive a service. Among all the
services only USB 2.0 is mutually exclusive. This means only one receiver in a group can
exclusively connect with the sender in order to export its USB Devices. See USB over IP
for more Details.

Unicast Mode v/s Multicast Mode

Unicast is used in One-to-One Applications, where only one receiver is allowed in a group.
Unicast offers simple and secure ways to extend Video and USB applications, such as
Remote PC Control, Classroom Presentation system with touch screen.
Unlike Unicast, Multicast mode is used in One-to-Many Applications, where multiple
receivers can join in a group and request services from a sender. Multicast gives true
flexibility to scale the system and offers features like Independent Routing and Video
Wall.
Fig 9: Unicast and Multicast Mode
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