5.5.5 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.
NOTE
l 1/2: indicates one interface or two interfaces.
l S: indicates synchronous serial interface.
l A: indicates asynchronous serial interface.
Table 5-42 lists the number of interfaces on the 1SA and 2SA.
Table 5-42 Number of interfaces on the 1SA and 2SA
Card Name Quantity of Interfaces
1SA 1
2SA 2
Functions and Applications
Functions
The 1SA/2SA provides the following functions:
l 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.
l An asynchronous serial interface supports the RS232 protocol and provides a maximum
transmission rate of 115.2 kbit/s.
l The 1SA/2SA provides system management channels by using in-band GE channels and
implements in-service upgrade by using system management channels.
l 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.
l The 1SA/2SA is hot swappable.
Applications
1SA/2SA can be installed into the SIC slot of the AR1200, AR2220, AR2240 and AR3260.
Panel and Interfaces
Figure 5-15 shows the appearance of the 1SA.
Huawei AR1200&2200&3200 Series Enterprise Routers
Hardware Description 5 Cards
Issue 03 (2012-04-20) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
84
To Next Page
Loading...
