Comtech EF Data SNM-1001L - Manual (Page 111)

SNM-1001L Satellite Modem Revision 1
Front Panel Operation MN/SNM1001L.IOM
4–47
FUNCTION SELECT: FAULTS/ALARMS: TX INTERFACE
TX INTERFACE
--------
TX DROP Not Used
TX DATA/AIS Not Used
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 Used
TX AUDIO 2 CLIP Not Used
CONFIGURATION TX interface configuration fault. Indicates the TX interface cannot execute
a programmed configuration parameter.
FUNCTION SELECT: FAULTS/ALARMS: RX INTERFACE
RX INTERFACE
---------------
BUFFER UNDERFLOW Buffer underflow alarm. Indicates that a buffer underflow has occurred.
BUFFER OVERFLOW Buffer overflow alarm. Indicates that a buffer overflow has occurred.
RX DATA/AIS Not Used
Note: AIS is an alarm, not a switching fault.
FRAME BER Frame BER fault. Indicates that the frame BER exceeds 1-3.
BACKWARD ALARM Not Used
BUFFER CLK PLL Buffer clock phase-locked loop fault. Indicates the buffer clock PLL is not locked.
BUFFER CLK ACT Activity detector alarm of the selected interface receive clock. The interface will fall back to the
satellite clock when this fault is active.
DEMUX LOCK Not Used
RX 2047 LOCK Not Used
BUFFER FULL Buffer full alarm. Indicates the buffer is less than 10% or greater than 90% full.
RX INSERT Not Used
RX AUDIO 1 CLIP Not Used
RX AUDIO 2 CLIP Not Used
CONFIGURATION Configuration alarm