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