H3C Technologies H3C MSR 50 - Manual (Page 270)

4-75
DFIC-24FXO24FXS
Introduction
The DFIC-24FXO24FXS provides 24-port voice subscriber circuit and 24-port voice AT0 analog trunk
circuit. FXS interfaces process and transmit voice signals over data communications networks for 24
regular analog phones, faxes, or AT0 loop trunks of telephone exchanges. The FXO interfaces process
and transmit voice signals over data communications networks for 24 loops of telephone exchanges.
Interface attributes
Table 4-61 Interface attributes of the DFIC-24FXO24FXS module
Attribute Description
Connector 50-pin D-type female connector
Interface standard FXS and FXO interface
Interface rate 24 × FXO interface rate plus 24 × FXS interface rate
Interface LEDs
DFIC-24FXO24FXS has two kinds of LEDs, Active and Link.
Table 4-62 Description of LEDs on the DFIC-24FXO24FXS panel
LED FXO interface FXS interface
Active
OFF means all links are idle. Blinking
means one or more links are
occupied.
OFF means all links are idle. Blinking means one
or more links are occupied.
Link
Steady ON if an electric device is
connected.
Steady ON means no fault occurs on the link
The following figure illustrates the DFIC-24FXO24FXS panel.
Figure 4-97 DFIC-24FXO24FXS front panel
Interface cable
DFIC-24FXO24FXS uses a 5 m (16.4 ft) or 15 m (49.2 ft) telephone conversion cable. At one end of the
cable is a D50 male connector that is used to connect to the DFIC-24FXO24FXS module; at the other
end are 24 RJ-11 connectors.