3Com Router 5000 and Router 6000 v2.41
Module Guide
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:
Transmission/Receiving and handling of T1 data streams;
cT1 (channel T1) access;
ISDN PRI function;
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):
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.
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:
Chapter 2 Smart Interface Cards
2-20
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