Function Select: Faults/Alarms: Tx Interface; Function Select: Faults/Alarms: Rx Interface - Comtech EF Data SNM-1001L Installation And Operation Manual

SNM-1001L Satellite Modem
Front Panel Operation

FUNCTION SELECT: FAULTS/ALARMS: TX INTERFACE

TX DROP
TX DATA/AIS
TX CLK PLL
TX CLK ACTIVITY
TX AUDIO 1 CLIP
TX AUDIO 2 CLIP
CONFIGURATION

FUNCTION SELECT: FAULTS/ALARMS: RX INTERFACE

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