3Com Router Module Guide
Chapter 2 Smart Interface Cards
2-20
Power-On Self-Test (POST) of the SIC has failed. In the latter case, please contact
your agent;
Step 5: Check the status of LINK LED on the ROUTER 1-PORT FRACTIONAL E1 SIC
panel: ON means the link is connected and OFF means the link is not connected. In
the latter case, check the line.
2.5 ROUTER 1-PORT FRACTIONAL T1 SIC
2.5.1 Introduction
1-port channelized T1/cT1/PRI compatible interface card supports:
z
Transmission/Receiving and handling of T1 data streams;
z
cT1 (channel T1) access;
z
ISDN PRI function;
z
Remote loopback and local loopback, facilitating the effective and flexible
debugging.
It is possible to use the card for multiple purposes through different configurations.
Following are the differences between and 1-port Fractional T1 interface card
(ROUTER 1-PORT FRACTIONAL T1 SIC):
z
FT1 mode of ROUTER 1-PORT FRACTIONAL T1 SIC can support only one
channel bundle (the rate is n x 56 kbps, n=1-24), while the 24 channels can be
grouped into multiple arbitrary bundles by SIC-TPRI.
z
ROUTER 1-PORT FRACTIONAL T1 SIC does not support PRI mode.
2.5.2 Appearance
Figure 2-20
ROUTER 1-PORT FRACTIONAL T1 SIC
2.5.3 Interface Attributes
The interface attributes of ROUTER 1-PORT FRACTIONAL T1 SIC are given in the
following table: