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2-port ADSL (over POTS) FIC (3C13872) 77
speed in the range of 32 Kbps to 8 Mbps (downlink rate) and a speed in the range
of 32 Kbps to 1 Mbps (uplink rate).
ADSL interface cards:
■ Supportfor ADSL over POTS (Annex A)
■ Allow manual activation/deactivation of ADSL line, and support SAR loopback,
which facilitates fault isolation.
■ Support interface standards of G. DMT, G. Lite, and T1.413 and the
configuration of auto-sensing.
■ Support network lattice coding (except for G. Lite) on ADSL interfaces,
enhancing the stability of ADSL connections.
Interface Attributes
Table 16 2-port ADSL FIC interface attributes
Panel and Interface LED The following figure illustrates the FIC-1ADSL panel.
Figure 20 2-port ADSL FIC panel
The following table describes the LEDs on the card panels.
Table 17 LED description 2-port ADSL FIC
Attribute 2-port ADSL FIC
Connector RJ11
Interface number
1 (FIC-1ADSL)
2 (2-port ADSL FIC)
Interface speed
In ADSL Full Rate mode (i.e., ITU-T 992.1 G.DMT/ANSI
T1.413):
The downlink speed can reach 8160Kbps, and the uplink
speed can reach 896Kbps.
Interface standard
ITU-T 992.1 G.DMT (Annex A)
ITU-T 992.2 G.Lite
ANSI T1.413 Issue 2
Cable and the
max. transmission
distance
The ADSL interface cable is telephone cable.
In full rate, the transmission distance can be as far as 1.8 km,
or 6000 feet (the maximum transmission distance depends on
the line quality).
Supported service ADSL access over the telephone line
LINK OFF means that the line is inactive, ON means that the line has been
activated and has entered the data mode, and blinking means that the line
is being activated.