Table 5-15 Mapping between the 8AS and software versions
Card Name AR2500 Series
8AS Supported in V200R008C00 and later
versions
Application
An 8AS card can be used for:
l WAN Interconnection: Connecting to a PSTN Through a Modem
l Remote Management: Serial Port Server
WAN Interconnection: Connecting to a PSTN Through a Modem
As shown in Figure 5-13, enterprise A and enterprise B deploy AR routers with 8AS cards on
their campus networks, which connect to the PSTN through modems. Either enterprise can
initiate a connection request to the other enterprise. A connection will be set up between the
two enterprises only when they need to communicate, reducing communication fees.
Figure 5-13 Enterprise communication through modems
Enterprise B
Enterprise A
ModemA
ModemB
PSTN
8AS 8AS
Remote Management: Serial Port Server
In telecommunications and financial service industries, some terminals support only serial
port access or do not support Telnet. In this case, an 8AS card can be configured as a serial
port server to provide the serial port redirection function. As shown in Figure 5-14, routers
that do not support Telnet are connected to the 8AS card in RouterA, and a remote PC can be
used to configure and manage these routers based on their IP addresses and serial ports
connected to them.
Figure 5-14 Remote management through serial port redirection
Session
Console
PC
RouterA
RouterB
8AS
Console
Console
RouterC
RouterD
IP
Network
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
5 Cards
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 627
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