Comtech EF Data SLM-3650 Installation And Operation Manual page 124

SLM-3650 Satellite Modem
Operation
3.4.10.3 Function Select: Transmit Interface: Faults
TX DROP
TX DATA/AIS
TX CLK PLL
TX CLK ACTIVITY
TX AUDIO 1 CLIP
TX AUDIO 2 CLIP
CONFIGURATION
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Drop interface hardware fault. Typically indicates that the drop interface PLL is
not locked (D&I only).
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.
Transmitter phase-locked loop fault. Indicates the transmitter Phase-Locked
Loop (PLL) is not locked.
Activity detector alarm of the selected interface transmit clock. The interface
will fall back to the internal clock when this alarm is active.
IDR TX audio for channel 1 is clipped.
IDR TX audio for channel 2 is clipped.
TX interface configuration fault.
Indicates the TX interface cannot execute a programmed configuration
parameter.
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Revision 3
MN/SLM3650.IOM