Extron Electronics MAV Plus series Large Scale User Guide - Manual (Page 44)

Operation, cont’d
CrossPoint 450 Plus and MAV Plus Switchers • Operation 3-12
Definitions
The following terms, which apply to Extron matrix switchers, are used throughout
this manual:
Tie — An input-to-output connection
Set of ties — An input tied to two or more outputs. (An output can never be tied
to more than one input.)
Configuration — One or more ties or one or more sets of ties.
Current configuration — The configuration that is currently active in the
switcher (also called configuration 0)
Global memory preset — A configuration that has been stored. Up to 64 global
memory presets can be stored in memory. When a preset is retrieved from
memory, it becomes the current configuration. Presets can be saved and
recalled from the front panel or via any of the serial or LAN ports. For front
panel operations, preset locations are assigned to the input buttons.
Room — A subset of outputs that are logically related to each other, as
determined by the operator. The switchers support up to 10 rooms, each of
which can consist of from 1 to 16 outputs.
Room memory preset — A configuration consisting of outputs in a single room
that has been stored. When a room preset is retrieved from memory, it
becomes the current configuration.
Power
Apply power by connecting the power cord to an AC source. The switcher
performs a self-test that flashes the front panel button indicators (if so equipped)
red, green, red, and amber and then turns them either off or to background
illumination. An error-free power up self-test sequence leaves all control buttons
either unlit or showing background illumination. The lit/unlit status RGBHV or
Video button and the Audio button is defined by the system configuration.
• Systems with audio — RGBHV or Video and Audio both lit
• Systems without audio — RGBHV or Video lit and Audio unlit
The current configuration and all presets are saved in non-volatile memory. When
power is applied, the most recent configuration is retrieved. The previous presets
remain intact. BME 0, upon power up, issues a map refresh command to all slave
BMEs to restore the current configuration.
N Because BME 0 maps the slave BMEs upon power up, either all BMEs should be
powered up simultaneously or BME 0 should be the last BME turned on.
Also, if any slave BME loses power, you need to issue any front panel command
or simply cycle BME 0’s power to restore the current configuration.
If an error occurs during the self-test, the switcher locks up. If your switcher locks
up on power-up, call the Extron S 3 Sales & Technical Support Hotline. See the rear
cover of this manual for the phone number in your region of the world.