8SA (8-Port Synchronous/Asynchronous WAN Interface Card)
Card Overview
The 8SA card is an enhanced high-speed synchronous/asynchronous serial interface module. It can work in synchronous or asynchronous mode, and often uses the synchronous mode to connect to a WAN.
An 8SA card can be installed in a WSIC slot of a router.
Figure 7-108 shows the appearance of an 8SA card.
Version Mapping
Table 7-247 lists the device models and software versions supporting the 8SA.
Card Name |
Device Model |
|---|---|
8SA NOTE:
This card is supported in V200R005C10 and later versions. |
AR1200 series (All models in this series except the AR1220C, and AR1220-8GE) AR2204 AR2204XE AR2204XE-DC AR2220 AR2220L-AC AR2220L-DC AR2220E AR2240 AR2240C AR3200 series AR3600 series |
Functions and Features
Table 7-248 describes the functions and features of an 8SA card.
Function and Feature |
Description |
|---|---|
Synchronous mode |
Uses a synchronous serial interface to connect to a WAN. |
A synchronous serial interface can function as a DCE or DTE. It supports multiple physical layer protocols, such as V.24, V.35, X.21, RS449, and RS530. |
|
Automatically identifies the rate of received signals. |
|
The maximum rate of V.24 is 64 kbit/s and the maximum rate of V.35/X.21/RS449/RS530 is 8.192 Mbit/s. |
|
Supports link layer protocols PPP, FR, and HDLC. |
|
Use IP as the network layer protocol. |
|
Support pseudo wire emulation edge-to-edge (PWE3). |
|
Asynchronous mode |
Support the RS232 protocol and provide a maximum transmission rate of 230.4 kbit/s. |
Works in protocol or flow mode. |
|
Supports the PPP and IP protocols in protocol mode. |
|
In flow mode, the interfaces do not support link layer protocols or IP. |
|
Supports PWE3. |
Panel
Figure 7-109 shows the indicators on an 8SA card, and Table 7-249 describes the indicator states and meanings.
Number |
Indicator |
Color |
Description |
|---|---|---|---|
1 |
STAT |
Green |
Slow blinking: The system is running properly. Fast blinking: The system is being powered on or restarting. |
Red |
Steady on: A fault that affects services has occurred and cannot be rectified automatically. The fault needs to be rectified manually. |
||
Off |
Off: The software is not running or is being reset. |
||
2 |
One double-color indicator for each SA interface NOTE:
|
Green |
Steady on: A link has been established. Off: No link is established. |
Amber |
Blinking: Data is being transmitted or received. Off: No data is being transmitted or received. |
||
Off |
Off: There is no connection. |
Figure 7-110 shows the interfaces on an 8SA card.
1. Eight SA interfaces |
Synchronous/Asynchronous serial (SA) interface
When working in synchronous mode, the SA interfaces implement interworking between enterprise branches and the headquarters over PPP links. When working in asynchronous mode, the SA interfaces are used to log in to other devices from the local device through the redirection function. Table 7-250 describes the SA interface attributes.
Attribute |
Description |
||
|---|---|---|---|
Synchronous Serial Interface |
Asynchronous Serial Interface |
||
Connector type |
DB28 |
||
Standards compliance and working mode |
|
|
RS232 |
Minimum baud rate (bit/s) |
1200 |
1200 |
600 |
Maximum baud rate (bit/s) |
64000 |
8192000 |
230400 |
Services provided |
DDN leased line |
|
|
Terminal access |
|
||
Cable type |
|||
Technical Specifications
Table 7-251 lists the technical specifications of an 8SA card.
Item |
Specification |
|---|---|
Card type |
WSIC |
Hot swap |
Supported |
Physical specifications |
|
Environment parameters |
|
Ordering Information
To place an order, visit https://e.huawei.com/en/how-to-buy to find the local supplier or submit your inquiries online.
Table 7-252 provides 8SA card ordering information.