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Interface Card and Interface Module Manual
H3C MSR 20/30/50 Series Routers
Chapter 2 Smart Interface Cards
2-46
2.13.5 Connecting the Interface Cable
Caution:
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When connecting the interface cable, pay attention to the mark on the interface to
avoid wrong insertion, which may damage the interface card or even the router host.
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If outdoor cabling is involved, you need to install a lightning arrester at the input end
of the SIC-BU/SIC-BS interface cable to avoid lightning strike.
After the interface card is properly installed, follow these steps to connect the cable.
Step 1: Verify the type of the ISDN line provided by your telecommunications service
provider.
Step 2: Connect the cable.
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For SIC-1BS/SIC-2BS
If the line is an ISDN U-interface line, use an NT1 for conversion. Insert one end of the
telephone cable with ferrite core into the BRI S/T interface of SIC-1BS/SIC-2BS, and
the other end to NT1.
If the line is an ISDN S/T interface line, insert one end of the telephone cable with ferrite
core to the BRI S/T interface of SIC-1BS/SIC-2BS, and connects the other end with the
ISDN S/T interface line.
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For SIC-1BU/SIC-2BU interface card
If the line is an ISDN U-interface line, insert one end of the telephone cable with ferrite
core into the BRI U interface of SIC-1BU/SIC-2BU, and connect the other end with the
ISDN U-interface line.
If the line is an ISDN S/T interface line, contact your agent to change the interface card
to SIC-1BS/SIC-2BS.
Step 3: Check the “ON” LED on the panel of the interface card. If the LED is on, the
interface is powered on. If the LED is off, contact your agent for help.
2.14 SIC-1BSV/SIC-2BSV
2.14.1 Introduction
SIC-1BSV/SIC-2BSV is short for 1/2-port ISDN BRI S/T voice interface card, which is
mainly used to process (receive/transmit and compress/decompress) the ISDN
interface voice traffic. The interface(s) on the SIC-1BSV/SIC-2BSV card is (are) ITU-T
I.430-compliant, adopting pseudo-ternary coding, providing 192 Kbps interface rate,
and allowing the maximum transmission distance of 1 km (0.6 mi.) in point-to-point