Hall Research VSA-51-R - Manual (Page 32)

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VSA-51
Temperature
This is the current temperature reading of a chip’s core on the receiver printed circuit board. There are many components
on the board that generate heat, so
don’t be alarmed if the reading is high
as it typically reads around 30 °F above ambient.
An internal fan will automatically come on if the temperature reading exceeds 120 °F.
The Audio amplifier is a class D and very efficient, but if it is pumping 42 watts of continuous power it will create additional
heat (plus the fact that the receiver is in a vault above a projector that creates more hot air. So it is possible for the fan to
turn on and off during use.
The audio amp has hardware shutdown for over temperature condition to prevent damage. The job of the fan is to prevent
loss of audio due to over temperature of the amplifier.
Serial Log Window
This window shows responses from the serial device (in most cases the video projector connected to the Receiver), in
response to user defined queries.
Say you want to know the total lamp hours of the projector connected to the unit so you can schedule maintenance
sometime before the end of lamp’s life.
You can create an action to send a serial query command to the projector and schedule the action to automatically take
place once a day or week, or whatever. The responses of the projector to these queries will be displayed in the Serial Log
window. In this way every time you click on the Status tab, you will see what the lamp hours were the last time the query
executed. As part of your action definition you can also clear this screen if you only want to see the latest reading and not
have the entire long history displayed.
3.2.3 Control
The Control Page is used to control the VSA-51. It can be used with or instead of the UI panel (VSA-UI-DP). The control
panel is updated in real-time even if changes are made at the UI panel or from another connected web client.
The Control page is dynamically created based on Button and Group configuration.
Control Tab
The Control Tab example shows the default button groups and labels. All groups and buttons on the Control page (accept
Audio) are customizable and can be renamed, removed, or modified. For example if you wanted to control another device
like a DVD player via IR or RS232 then you would first create actions for each command and then assign those actions to
buttons (ie: play, stop, pause) and group them under a heading like DVD PLAYER. Section 3.2.3.3 - Actions and 3.2.3.4 –
Buttons explains these steps in more detail.