Comtech EF Data SLM-5650B - Page 119

SLM-5650B Satellite Modem
Revision 2
Front Panel Operation 5–35 MN-SLM-5650B
Transmit (Tx) Alarm Position Description
TX Intf #6
CNC APC Home State power problem
The examples that follow depict alarm status screens displayed for the Mod 1
st
and Intf
Tx 1
st
character positions. If the Mod 1
st
character position is selected:
Mod: +--- Mod symbol clk
Intf: ---- not locked.
If the Intf Tx 1
st
character position is selected:
Mod: ---- TXIntf data
Intf: +--- not locked.
Monitor: Alarms  Receive
Demod: --------- Press <ENT> for
Intf: ---------- detailed status
Press [ENT] to access the available read-only Demodulator and Intf (Interface) Rx alarm
screens. Then, use the
 arrow keys to navigate through the displayed Demodulator
and Interface character positions (Demod#1 through #6, and Rx Intf#1 through #10). The
status message to the right changes based on the current cursor position, as per the
following table:
Receive (Rx) Alarm
Position
Description
Top
row
Demod #1
Demod #2
Demod #3
Demod #4
Demod #5
Demod #6
Demodulator constellation lock status.
Demodulator FEC (forward error correction) lock status.
Demodulator RF Synthesizer Phase Lock Loop status.
Demodulator IQ activity status.
Composite Power exceeds 40 dBc.
Composite Power exceeds 20 dBm.
Bottom
row
Rx Intf #1
Rx Intf #2
Rx Intf #3
Rx Intf #4
Rx Intf #5
Rx Intf #6
Rx Intf #7
Rx Intf #8
Rx Intf #9
Rx Intf #10
Rx Intf #11
RX Intf #12
Rx Intf #13
Demultiplexer lock status.
Doppler buffer status.
Doppler buffer fill status.
Doppler buffer overflow status.
Doppler buffer underflow status.
Doppler buffer Phase Lock Loop status.
Doppler buffer reference clock activity status.
Receive data interface AIS (alarm indication signal) status.
Receive Eb/No lower than Eb/No threshold status.
Internal BERT sync status.
CnC APC band mismatch.
LNB voltage fault.
LNB current fault.