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P841C Central-Side VDSL Modem

4-2 VDSL-Related Commands

Table 4-3 VDSL Mode, Frequency Ranges and Rates

VDSL MODE FREQ. RANGE (Hz) RATE (Mbps)

10 Base-S

Upstream 4.0M 7.9M 1.56 6.25 9.38 12.50 18.75

Downstream 900K 3.0M 4.17 6.25 8.33 12.50 16.67

ANSI Mode (ANSI/ETSI Band Plan 998)

Upstream 4.0M 5.0M 1.56 3.13 6.25

Downstream 900K 3.0M 4.17 6.25 8.33 12.50 16.67

ETSI Mode (ETSI Band Plan 997)

Upstream 4.0M 5.0M 1.56 3.13 6.25

Downstream 900K 2.7M 4.17 6.25 9.38 12.50

4.1.2 VDSL Active Command

vdsl active [on|off]

Use this command to activate or deactivate the VDSL driver.

4.1.3 VDSL Uprate and Downrate Commands

Use the following commands to view and set VDSL upstream and downstream rates. Rates vary according to

VDSL mode selected – see Table 4-4 and section 4.1.1.

Upstream Rates

vdsl uprate [uprate]

“uprate” is an integer from 0 to 4 as defined in the next table. This command sets the upstream VDSL rate if you

set a rate and displays the rate if you don’t. If you set a new rate, you must use “vdsl reset” or “vdsl reconnect”

command to reconnect.

Figure 4-2 VDSL Upstream Rate

Downstream Rates

vdsl downrate [downrate]

“downrate” is an integer from 0 to 4 defined in the next table. This command sets the upstream VDSL rate if you

set a rate and displays the rate if you don’t. If you set the rate, you must use “vdsl reset” or “vdsl reconnect”

command to make VDSL reconnect.

P841C>vdsl uprate

vdsl upstream rate: 1562500 bps (0)

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