ASUS DSL-AC55U Benutzerhandbuch

• Tx Power Control (VDSL): It allows you to configure the Tx

Power for VDSL to improve the downstream speed. A low

Tx Power value increases the downstream speed but affects

the upstream speed, and vice versa.

• Rx AGC GAIN Adjustment (VDSL): Allows you to configure

Rx AGC GAIN (Auto Gain Control) for your VDSL line. You can

set this item to any of these modes:
• Stable: Select this mode to get a stable VDSL connection.
• High Performance: Select this mode to improve the current

downstream speed.

• Default: Select this mode for your xDSL modem router to

automatically assign the suitable mode for your VDSL line.

• UPBO/Upstream Power Back Off (VDSL): This item

allows you to enable or disable UPBO (Upstream Power

Back Off) for VDSL. DSLAM (Digital Subscriber Line Access

Multiplexer) uses UPBO to reduce the Tx Power of your xDSL

modem router. In some cases, UPBO control from DSLAM

may lead to sync issue, such as Tx Power is too low to sync

at minimum rate. Disable this item to prevent any DSLAM-

related sync issues.

• Seamless Rate Adaptation: This item allows you to enable

SRA (Seamless Rate Adaptation) for consistent data transfer

rates and preventing dropped connections. You may

disable this item when your connection is very stable and

there is a decrease in download or upload speed.

• Bitswap: This item allows you to enable Bitswap, which

adjusts bits allocated for bins/channels. Busy or congested

bins/channels are assigned fewer bits while available

channels are allocated more bits to handle.

• VDSL Profile: This item allows you to configure the VDSL

Profile. The default value is 30a multi mode.

NOTE: For some ISPs with non-standard 30a multi mode VDSL DSLAM

sync setting, such as for ISP services in Germany, set the VDSL Profile to

17a multi mode to sync up the VDSL line.