Power Button; Mute Enable Button; Meter Button; Menu Button - Lab.gruppen PLM series Operation Manual

9. Front Panel Interface

9.3 Power Button

The PLM is powered by pressing the top left-most button in the left-hand cluster. It has a bicolor
'power' symbol
when the button is pressed to turn the PLM on. A second press returns the PLM to STANDBY mode.

9.4 Mute Enable Button

From the front panel it is possible to mute module inputs and power outputs.
However, before any muting can be done, MUTE ENABLE mode must first be selected by pressing the
MUTE ENABLE button. Once selected, the legend in the button flashes, and the soft function buttons will
now act as mute buttons. The two central buttons to the left mute Module A and B inputs respectively.
The four buttons to the right mute the power output channels. On-screen text adjacent to the soft function
buttons confirm (in HOME view) when a Module input or output channel has been muted.
Note that the system must be in METER mode for MUTE ENABLE to be selectable.
If no further mute selections are made, MUTE ENABLE mode self-cancels after two minutes. Alternatively,
it can be de-selected by a second press of the MUTE ENABLE button.

9.5 Meter Button

The PLM control system has two operating modes, METER mode (the default) and MENU mode.
Each mode has a family of screen displays specific to the mode. In all normal operating situations, the
system will be in METER mode, which allows the user to monitor PLM parameters such as signal level,
output power and temperatures.
In METER mode, there are four possible screen displays, referred to as "Views". Pressing the METER
button will scroll through the four views in turn:
Note that HOME View is the default.
Pressing METER mode when in MENU mode will return the system to METER mode, with HOME view
displayed.
A detailed description of the information displayed in each of the four Views (HOME, MODULE, TEMPERA-
TURE and INPUT) can be found in sections 9.11.1, 9.11.2 and 9.11.3 respectively.

9.6 Menu Button

The alternative operating mode – MENU - is selected by pressing the MENU button. The screen
display changes to the opening "page" of the menu system which shows a list of the seven "next-level"
submenus. Each submenu title is adjacent to a soft button, which can then be pressed to select it.
Pressing the MENU button while in MENU mode takes the display "back up" one menu level.
MENU mode is used only to reconfigure the PLM in some way, or to alter an operating parameter.
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PLM Series Operation Manual rev 1.1.3
which illuminates red when the PLM is connected to the AC mains, and turns green