Comtech EF Data SNM-1002 - Manual (Page 65)

SNM-1002 LinkSync
 Modem
Revision 2
Operation MN/SNM1002.OM
3–25
3.4.3.3 FAULTS AND ALARMS:TX INTERFACE
TX INTERFACE
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TX DROP Not Applicable.
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 Not Applicable.
TX AUDIO 2 CLIP Not Applicable.
CONFIGURATION TX interface configuration fault.
Indicates the TX interface cannot execute a programmed
configuration parameter.