Ambit U10C035 Průvodce řešením problémů stáhnout pdf (Strana 27)

| Ubee Interactive 2011

27

A.4 MODEM  CABLE MODEM: UPSTREAM

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.)

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