Meinberg TCR LANTIME - Manual (Page 24)

The Front Panel Layout
TCR Status LEDs
The boards state is signalised by two front panel leds. The red FAIL led indicates
the freewheeling mode. It is activated when the board has switched into freewheeling
mode, and turned off when the clock is synchronized. The green LOCK led shows the
state of the internal time base and the oscillator regulation. LOCK flashes when the
internal time base is adjusted, and is constantly turned on when the oscillator
regulation has settled. Depending on the oscillators offset the settling phase ( flashing
LOCK led ) can take a few hours.
LC Display
The 2 x 40 character LC display is used to show the receiver’s status and let the
user edit parameters. The keys described below let the user select the desired menu.
The next chapter lists all available menus in detail. A quick reference of the available
menus and submenus can be found at the end of this document.
MENU Key
This key lets the user step through several display menus showing specific data.
CLR/ACK Key
This key has to be used when parameters are to be modified. When this key is
pressed the parameters that have been edited are saved in the battery buffered
memory. If the menu is left without pressing CLR/ACK all changes are discarded.
NEXT Key
When editing parameters (LCD cursor is visible) this key moves the cursor to the
next digit with respect to the next parameter to be edited. If the current menu just
displays data (cursor not visible) pressing this key switches to a submenu (if
available).
INC Key
When editing parameters this key increments the digit or letter at the cursor
position.
24