MPA_e_manual_D07-00-129P_RevA00
GUI System Tab
SMA CLK B 10 MHz
In/Out
External Clock In Status
MPA units that have the new MCH module support both Internal or External chassis
clock references.
The External Clock In Status will show Locked when the processor is synchronized to
the
Chassis Clock
767
clock.
The transmit signals derive their data's timing from an
external 10 MHz 75 Ohm TTL timing source attached to
the SMA CLK-B In connector.
Chassis (Ext 10 MHz) option appears in the Transmit
Clock Reference menus, and CLK:Ext 10 MHz displays in
the Quick LED Status area when selected.
The SMA CLB-B Out port is a 10 MHz 75 ohm TTL
clock.
setting.