Loop Telecom Loop-V 4200 - Mclk; Master Clock; Second Clock; Current Active Clock

Chapter 4 Front Panel Operation
4-10
4.2.5 MCLK
Master clock menus are used to configure the master clock source and clock rate. From the Configuration
menu, use the arrow keys to select the Master Clock menu.
CONTROLLER>IP DATE INFO TSI-MAP MCLK
MCLK>MASTER SECOND CURR RECOVER STATUS
4.2.5.1 MASTER CLOCK
NOTE: Secondary Clock Menu operation is similar.
Press ENTER from Master Clock Primary Clock
The Master clock menu shows the current clock source as INT (internal), Port A, B, C, D, E, F, H, J, K, EXT
(external) by placing an asterisk (*) by the appropriate selection. To change the selection, move the cursor to
the desired selection and press ENTER. The External-clock menu shows the current external clock rate in
the lower left corner of the display. The rate of the external clock is 2.048 Mbps.
MCLK>MASTER SECOND CURR RECOVER STATUS
*INT. A B C D E F H J K EXT.
4.2.5.2 SECOND CLOCK
Use the right arrow key to select the “SECOND” menu, and press ENTER. The LCD will show as follows:
MCLK>MASTER SECOND CURR RECOVER STATUS
*INT. A B C D E F H J K EXT.
4.2.5.3 CURRENT ACTIVE CLOCK
The Current Active clock menu shows the current active clock source is PRIMARY master clock or 2nd
master clock.
MCLK>MASTER SECOND CURR RECOVER STATUS
*MASTER_CLK SECOND_CLK INTERNAL
4.2.5.4 RECOVER
The Recover menu shows the master clock recover mode. If clock mode is automatic, the Loop-V 4200 will
return to the master clock source in one minute after the master clock is recovered. The current active clock
source is automatically changed to master clock.
MCLK>MASTER SECOND CURR RECOVER STATUS
MANUAL *AUTOMATIC