Cisco Cisco Videoscape Voyager Vantage 3.0 User Guide
102
System Diagnostics
Page 5: OOB Network Screen
I
Table 2
OOB Network Screen
Field Name
Description
Possible Values
FDC / RDC
Shows the frequency and power of the Forward Data Channel (FDC) and the
Reverse Data Channel (RDC) as described below.
Reverse Data Channel (RDC) as described below.
Frequency (MHz)
The frequency (Freq) of the tuned
QPSK receiver in MHz.
QPSK receiver in MHz.
[Network-dependent]
Power (dBmV)
The approximate received signal
level.
level.
Refer to hardware specifications.
Value displayed in white — Signal
level is nominal
level is nominal
Value displayed in amber —
Signal level is marginally too high
or too low
Signal level is marginally too high
or too low
Value displayed in red — Signal
level is unacceptably too high or
too low
level is unacceptably too high or
too low
RDC Data Rate (kb/s)
Current data rate of the RDC.
[Integer > 0]
FDC Lock
QPSK receiver (Rx) tuner lock status.
Locked — Desired value
Not Locked
FDC SNR (dB)
The signal-to-noise ratio.
Refer to hardware specifications.
Value displayed in white — Signal
level is nominal
level is nominal
Value displayed in amber —
Signal level is marginally too high
or too low
Signal level is marginally too high
or too low
Value displayed in red — Signal
level is unacceptably too high or
too low
level is unacceptably too high or
too low
n/a — Not applicable for this
DHCT
DHCT
FDC FEC Corr (/Sec)
The number of bytes received in error
that have been successfully corrected
by the forward error correction (FEC)
code.
that have been successfully corrected
by the forward error correction (FEC)
code.
[Integer > 0]
Important:
If incrementing rapidly,
picture freezing or macroblocking
may be present.
may be present.
RDC Delay (μSec)
The round-trip delay in microseconds
between the set-top and the modem
at the headend or hub that is used to
determine when to transmit the
slotted-aloha packets.
between the set-top and the modem
at the headend or hub that is used to
determine when to transmit the
slotted-aloha packets.
Note:
Slotted-aloha packets are used
to assign periods of time or slots
when the set-top can transmit
without interfering with other
set-tops on the same hub.
when the set-top can transmit
without interfering with other
set-tops on the same hub.
[Integer > 0]