Allied Telesis AT-MC606 User Manual

Page of 44
Overview
22
VDSL Configuration DIP Switches
VDSL Switch
Definitions
The AT-MC606 VDSL Network Extender features the four VDSL 
Configuration DIP switches on the front panel. The UP/DOWN positions of 
each switch are shown in “VDSL Configuration DIP Switches” on page 23 
and defined in Table 4 below.
Table 4. VDSL Configuration DIP Switches
Switch 
Location
Position
Switch 
Function
Description
Left
UP
SCBR
Unit is configured for the Subscriber Mode.
DOWN
PROV
Unit is configured for the Provider Mode.
Left
Center
UP
FAST
FAST mode guarantees a minimum end to end 
latency less than 1 ms.
DOWN
INTL
INTL (Interleaved) mode protects from impulse 
noises with a duration less than 250 ms. This 
results in a maximum end to end latency of 
less than 6 ms.
Right
Center
UP
ASYM
Asymmetrical mode adjusts the Subscriber 
unit line rates to be up to 100 Mbps for receive 
data and up to 60 Mbps for the transmit data.
DOWN
SYM
Symmetrical mode adjusts the receive and 
transmit data rates to be approximately the 
same in both directions for both the Subscriber 
and Provider units.
Right
UP
6 dB
The unit provides optimum Signal to Noise 
Ratio (SNR) for VDSL line length of less than 
305 meters (1000 feet).
DOWN
9 dB
The unit provides optimum Signal to Noise 
Ratio (SNR) for VDSL line length between 305 
meters (1000 feet) and 3000 meters (9842 
feet).