HS 2000 System Administrator’s Handbook
Chapter 1. System Overview
Hardware overview
11
Network adapter
The network adapter is an ISA board that serves as a telecom wide area
network (WAN) adapter for connecting the system to remote sites. This
board is directly connected to the codec board via an internal MVIP
ribbon cable. Multiple network adapter options enable the Enterprise
Series HS 2000 system to support a number of different networking
solutions and protocols.
Expansion unit
The expansion unit is a rack-mountable chassis that contains components
that route peripheral video and audio equipment to system resources. The
unit provides five video inputs and four video outputs for general purpose
uses. It also provides video and audio connections to the system’s codec
and video boards.
Audio components of the unit support three microphone inputs, two
line-level audio inputs (one mixed with microphones), and two line-level
audio outputs.