30.
IDU temperature
– shows the IDU internal temperature in degrees by Celsius and
Fahrenheit (command line -
diagnostics
or
status
);
31.
ODU temperature
– shows the ODU internal temperature in degrees by Celsius and
Fahrenheit (command line -
odu status
);
32.
Modem temperature –
shows the temperature on modem chip in degrees by Celsius
and Fahrenheit (command line -
diagnostics
);
33.
IDU input voltage
– shows the input voltage of IDU PSU in volts (command line –
diagnostics psu status
);
34.
IDU input current
– shows the current of IDU PSU in amperes (command line –
diagnostics psu status
);
35.
IDU power consumption
– shows the amount of power consumed by IDU PSU in
watts (command line –
diagnostics psu status
);
36.
ODU PSU state
– shows whether ODU PSU is operating (command line –
diagnostics
psu status
);
37.
IDU output voltage to ODU
– shows the input voltage of ODU PSU in volts
(command line –
diagnostics psu status
);
38.
IDU output current to ODU
– shows the current of ODU PSU in amperes (command
line –
diagnostics psu status
);
39.
ODU power consumption
– shows the amount of power consumed by ODU PSU in
watts (command line –
diagnostics psu status
);
40.
ODU cable attenuation
– shows attenuation on IDU-ODU cable (command line –
odu status
);
41.
AUX alarm input
– shows which inputs from four available are active (command line
-
diagnostics
);
42.
AUX alarm output
– shows which outputs from four available are active (command
line -
diagnostics
);
43.
Tx polarization –
shows transmission polarization and position of connectors and
cables (command line -
diagnostics
);
44.
Name (serial number)
– shows system name and serial number (command line –
system name
and
system inventory
);
45.
License remaining time
– shows amount of time (in seconds) remaining for active
time limited license (if applicable); in case of no license “N/A” is being shown; in
case of unlimited time license “Unlimited” is being shown (command line –
license
status
);
46.
Firmware version
– shows current firmware version. Make sure it is the same on
both ends of the link (command line –
ver
).
3.1.1
Radial MSE
Radial MSE
is a method for estimating the signal to noise ratio. ACM engine uses normalized
MSE, which is the inverse of SNR. It is calculated by dividing the estimated MSE level with the energy
of the received constellation. Radial MSE peak value threshold is dependent on modulation used and
LDPC code rate.
If the Radial MSE value trespasses following thresholds, BER at the output of LDPC decoder will
reach the value of 1.0
⋅
10
-6
:
4QAM
StrongFEC
16QAM
StrongFEC
32QAM
StrongFEC
64QAM
StrongFEC
128QAM
StrongFEC
256QAM
StrongFEC
256QAM
WeakFEC
- 8.5 dB
-13.8 dB
-16.0 dB
- 19.3 dB
-22.3 dB
-25.1 dB
-27.6 dB
3.1.2
LDPC
The
LDPC
is monitored for the number of errors being corrected on the input of LDPC decoder
(see
Figure 3.2
).
CFIP PhoeniX Series TDM/IP Split Mount System Technical Description and Configuration Guide
•
Rev. 1.13
•
© SAF Tehnika JSC 2015
36