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3Com Router 5000 and Router 6000 v2.41
Module Guide
Chapter 4 Flexible Interface Cards (Router 6000)
4-58
The 2-/4-port voice AT0 analog trunk interface card, processes and transmits over
data communications networks voice signals for 2/4 loops of telephone exchanges.
Caution:
When connecting the Router 2-Port FXS/2-Port FXO FIC or the Router 4-Port FXS/4-Port FXO FIC,
make sure your router has access to an IP network or some other WAN.
4.19.2 Interface Attributes
The following table describes the interface attributes of the Router 2-Port FXS/2-Port
FXO FIC and the Router 4-Port FXS/4-Port FXO FIC.
Table 4-39 Interface attributes of the Router 2-Port FXS/2-Port FXO FIC and the Router 4-Port
FXS/4-Port FXO FIC
Attribute Description
Connector
RJ-45
Number of
connectors
2 (Router 2-Port FXS/2-Port FXO FIC)
4 (Router 4-Port FXS/4-Port FXO FIC)
Cable
Telephone cable with ferrite core
Interface standard
ITU Q.512-compliant subscriber circuit interface
ITU Q.552-compliant loop trunk interface
ITU K.20-compliant overcurrent protection
Dial-up mode
Dual-tone multifrequency (DTMF), compliant with GB3378
(Pulse dial is not available.)
Bandwidth
300 to 3400Hz
4.19.3 Panel and Interface LEDs
The following figure illustrates the 2-Port FXS panel: