SLM-3650 Satellite Modem
Revision 3
Operation
MN/SLM3650.IOM
3–44
3.4.10.3
Function Select: Transmit Interface: Faults
TX DROP
Drop interface hardware fault. Typically indicates that the drop interface PLL is
not locked (D&I only).
TX DATA/AIS
Data or AIS. When data fault is selected in the Interface Configuration menu,
the fault indicates a data stable condition. This indicates the data is all 1s or
0s (i.e., data is not transitioning). When AIS is selected, the alarm indicates
the data is all 1s from customer data input to the modem. When None is
selected in the Interface Configuration menu, the TX Data/AIS Fault/Alarm is
not activated.
Note:
AIS is an alarm, not a switching fault.
TX CLK PLL
Transmitter phase-locked loop fault. Indicates the transmitter Phase-Locked
Loop (PLL) is not locked.
TX CLK ACTIVITY
Activity detector alarm of the selected interface transmit clock. The interface
will fall back to the internal clock when this alarm is active.
TX AUDIO 1 CLIP
IDR TX audio for channel 1 is clipped.
TX AUDIO 2 CLIP
IDR TX audio for channel 2 is clipped.
CONFIGURATION
TX interface configuration fault.
Indicates the TX interface cannot execute a programmed configuration
parameter.
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