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Ubee Interactive 2011
27
A.4
MODEM
C
ABLE
M
ODEM
:
U
PSTREAM
Description
Label
US-1 to US-4
Upstream Channels.
Channel Type
Displays the channel type.
Channel ID
Displays the current cable modem upstream
channel ID.
Frequency
Displays the current cable modem upstream
frequency (Hz).
Ranging
Status
Displays the upstream ranging status.
Modulation
Displays the current cable modem upstream
modulation type (QPSK/ QAM8 /QAM16/
QAM32/ QAM64/ QAM128/ QAM256).
Symbol Rate
Displays the symbol rate (Ksym/sec).
Upstream
Mini-Slot Size
Displays the current cable modem upstream
mini-slot size in Timebase Ticks of 6.25.
Power Level
Displays the current cable modem upstream
transmit power (dBmV).
T-1 Timeouts
T-2 Timeouts
T-3 Timeouts
T-4 Timeouts
T-1: Valid UCD not received,
T-2: Ranging maintenance bcast not recvd,
T-3: RNG-RSP time expired. US problem.
T-4-RNG time expired. US or DS problem.
(“Double-digit” T3 and T4 values could also
indicate Bonding issue, provisioning or other
such issue that results in continual reboot.)