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Dct3080 installation manual – Motorola DCT3080 User Manual

Page 85

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DCT3080 Installation Manual

79

Downstream Channel

(carries data from the headend to the set-top)

Carrier
Lock

YES — The cable modem is locked to a DOCSIS downstream
channel.
NO — The cable modem is not locked to a downstream
channel.
N/A — The value is invalid or cannot be retrieved, or DOCSIS
is not enabled.

Frequency

The center frequency of the channel to which the DOCSIS
downstream channel receiver is tuned. It can be 54 to 860
MHz. If the value is invalid or cannot be retrieved, downstream
Carrier Lock is NO, or DOCSIS is not enabled, N/A is
displayed.

LKC

The last known carrier (LKC); the frequency of the last tuned
downstream channel used if the embedded cable modem
enters hunt mode. It can be 54 to 860 MHz. If the value is
invalid or cannot be retrieved, Carrier Lock is NO; if DOCSIS
is not enabled, N/A is displayed.

Mode

The DOCSIS downstream channel modulation: QAM 64 or
QAM 256. If the value is invalid or cannot be retrieved, Carrier
Lock is NO; if DOCSIS is not enabled, 000 is displayed.

Power
Level

The downstream channel power level in dBmV. If the value is
invalid or cannot be retrieved, Carrier Lock is NO; if DOCSIS
is not enabled, 000 is displayed.

SNR

The estimated downstream channel carrier signal-to-noise
ratio in the format xx.x dB. It is the value reported as SNR in
the MIB. If the value is invalid or cannot be retrieved, Carrier
Lock is NO; if DOCSIS is not enabled, 00.0 is displayed.

Upstream Channel

(carries data from the set-top to the headend)