3com MSR 20-20 사용자 설명서
36
C
HAPTER
2: S
MART
I
NTERFACE
C
ARDS
Step 2: Connect the other end of the T1 cable to the relevant equipment;
Step 3: Check the status of LINK LED on the SIC-1TPRI/SIC-1T1-F panel: ON means
the link is connected and OFF means the link is not connected. In the latter case,
check the line.
the link is connected and OFF means the link is not connected. In the latter case,
check the line.
SIC-1AM/SIC-2AM
Introduction
1/2-port analog modem interface card (SIC-1AM/SIC-2AM) integrates the
functions of asynchronous interface and external modem, that is, allowing 1/2
channel(s) of remote modem subscribers to directly access the Router. They
support:
functions of asynchronous interface and external modem, that is, allowing 1/2
channel(s) of remote modem subscribers to directly access the Router. They
support:
■
Data rate of 56 kbps.
■
Accessing and handling analog signals and transmitting the processed data to
the Router host through the serial interface bus. And also, processing the data
received from the host and then transmitting them to the PSTN via the
telephone port.
the Router host through the serial interface bus. And also, processing the data
received from the host and then transmitting them to the PSTN via the
telephone port.
Interface Attributes
The interface attributes of SIC-1AM/SIC-2AM are given in the following table:
Interface LEDs
Figure 28 SIC-1AM panel
Figure 29 SIC-2AM panel
Table 10 Interface attributes of SIC-1AM/SIC-2AM
Attribute Description
Connector type
RJ11
Number of connectors
1 (SIC-1AM)
2 (SIC-2AM)
Cable type
Telephone cable with ferrite core
Maximum speed
56 kbps
Supported standard
ITU-T V.90, V.34 (33.6 kbps), V.FC,
V.32 bis, V.32, V.22 bis, V.22A/B,
V.23, V.21, Bell 212A a, Bell 103.
V.32 bis, V.32, V.22 bis, V.22A/B,
V.23, V.21, Bell 212A a, Bell 103.
Supported service
Modem dial-up