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3 faults and alarms:tx interface – Comtech EF Data SNM-1000 User Manual

Page 64

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SNM-1000 Node Control Modem

Revision 3

Operation

MN/SNM1000.IOM

3–22

3.4.3.3

FAULTS AND ALARMS:TX INTERFACE

TX INTERFACE
---------

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.