LCD Panel
The LCD panel shows the current operating status for the rack or various configuration menus.
Menu Key
The Menu Key is used to choose which display or configuration menu appears on the LCD panel. Sometimes, the Menu Key doubles as an Up key for moving about in a particular display.
Left and Right Arrow Keys
The left and right arrow keys move the cursor from one field to the next.
Enter Key
The Enter key selects and activates a particular configuration setting. Sometimes, the Enter Key doubles as a Down key for moving around in a particular display.
The four arrow keys are used for panel operations. They allow intuitive menu tree operation and status display, and control all modem operations in the rack.
Power Supply
The power supply(s) occupy slots behind the front panel. Your rack has two slots for power supply cards. Each card has its own on/off switch, overload protection fuse holder, and two LEDs for monitoring the card status.
On/Off Switch
The on/off switch lets you turn the power supply on. Turning the power supply on does not necessarily turn the rack on. Power can also be controlled by the master power switch on the
6