Grass Valley SMS-6000 Series - Manual (Page 25)

1-8
Section 1 — Introduction
Control System
The microprocessor-based control system activities are:
■ Read buttons and update displays on both local and remote control
panels
■
Respond to data received through the computer port
■
Update the router crosspoint switches
■ Handle the communications between different switching levels such as
audio and video frames
The system is shipped with a “basic” configuration. A customer may
change this configuration to fit their specific requirements using the
configuration software. This configuration is normally stored in an
NVRAM inside the Master unit (see below).
The control system maintains its status in a battery-backed memory so that
when the unit is powered down the router remembers its current settings
and on powering up again it switches the unit to those settings. The non-
volatile RAM which stores this information is located inside the Master
unit of the system (see below).
Configuration Switches
There are a number of switches provided which are used to configure the
system to suit your own requirements. They are briefly described below,
but for more details and a procedure for how to set them up, refer to
Section 2: Installation.
Address Switch
A rotary “hex” switch in each frame and panel determines its unique
address in the system. This ensures that each frame and each panel has a
different code allowing the communications down the coaxial Quick-Link
to distinguish different units. A frame and a panel can share the same code.
The firmware can tell from permanent links on the boards which ones are
panels and which ones are frames.