1Sa/2Sa-1/2-Port-Synchronous/Asynchronous Wan Interface Card - Huawei AR1200-S Series Hardware Description

Huawei AR1200-S&2200-S Series Enterprise Routers
Hardware Description
5.4.5 1SA/2SA-1/2-Port-Synchronous/Asynchronous WAN
Interface Card
The 1SA/2SA is the 1-port/2-port synchronous/asynchronous serial interface module on the AR
routers.
Table 5-33
Table 5-33 Number of interfaces on the 1SA and 2SA
Card Name
1SA
2SA
Functions and Applications
Functions
The 1SA/2SA provides the following functions:
l
l
l
l
l
Applications
1SA/2SA can be installed into the SIC slot of the AR1200-S, and AR2220-S.
Panel and Interfaces
Figure 5-12
Issue 03 (2012-04-20)
NOTE
l 1/2: indicates one interface or two interfaces.
l S: indicates synchronous serial interface.
l A: indicates asynchronous serial interface.
lists the number of interfaces on the 1SA and 2SA.
A synchronous serial interface can function as a DCE or DTE. It supports multiple physical
layer protocols, such as V.24, V.35, and X.21, but does not support X.21 DCE. The
maximum rate of V.24 is 64 kbit/s and V.35 is 2.048 Mbit/s.
An asynchronous serial interface supports the RS232 protocol and provides a maximum
transmission rate of 115.2 kbit/s.
The 1SA/2SA provides system management channels by using in-band GE channels and
implements in-service upgrade by using system management channels.
The system powers on or off the 1SA/2SA and monitors the current of the 1SA/2SA; the
backplane provides 12 V voltage for the 1SA/2SA.
The 1SA/2SA is hot swappable.
shows the appearance of the 1SA.
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Quantity of Interfaces
1
2
5 Cards
50