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Interface Card and Interface Module Manual
H3C MSR 20/30/50 Series Routers
Chapter 2 Smart Interface Cards
2-9
2.3 SIC-1EPRI/SIC-1E1-F
2.3.1 Introduction
1-port channelized E1/CE1/PRI compatible interface card (SIC-1EPRI) supports:
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Transmission/Receiving and handling of E1 data streams;
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CE1 (channelized E1) access;
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ISDN PRI function;
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Remote loopback and local loopback functions, facilitating fault test and location.
It is possible to use the card for multiple purposes through different configurations.
Following are the differences between SIC-1EPRI and 1-port Fractional E1 interface
card (SIC-1E1-F):
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FE1 mode of SIC-1E1-F can support only one channel bundle (the rate is n ×
64kbps, n=1-31), while the 31 channels can be grouped into multiple arbitrary
bundles by SIC-1EPRI;
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SIC-1E1-F does not support PRI mode.
2.3.2 Interface Attributes
The interface attributes of SIC-1EPRI/SIC-1E1-F are given in the following table:
Table 2-5
Interface attributes of SIC-1EPRI/SIC-1E1-F
Attribute
Description
Connector type
DB-15
Number of connectors
1
Interface standard
G.703, G.704
Interface rate
2.048 Mbps
Cable type
75-ohm non-balanced coaxial cable (DB-15 to BNC)
120-ohm balanced twisted-pair cable (DB-15 to RJ-45)
Coaxial connector, network interface connector and
75-ohm to 120-ohm adapter
Operating mode
E1
CE1, ISDN PRI (supported by SIC-1EPRI only )
FE1(supported by SIC-1E1-F only)
Supported service
Backup
Terminal access
ISDN (supported by SIC-1EPRI only)