D-Link DI-1750 Reference Manual page 20

♦ Frame Relay
♦ Point to point protocol (PPP)
♦ X.25
♦ Synchronous data link control·（SDLC）
The encapsulating protocol is able to set by following commands in the mode of interface configuring:
encapsulation{hdlc|frame-relay|ppp|x2
5|sdlc}
The setting of concrete encapsulation should according to the actual situation. Please see the
"Command of interface" to get more information.
Choose the item 11 of prompt, it will list all the parameters:
(00)frame-relay
(01)hdlc
(02)ppp
(03)sdlc
(04)x25
Please Input the code of command to be excute(0-4):
Then choose the protocol you want to encapsulate.
3. Configure Low-speed Serial Interface
This section describes how to configure low-speed serial interface. Please see the "Example of
low-speed interface" for example of configuration.
Usually, the low-speed serial interface supports both synchronous mode and asynchronous mode.
While in the status of interface configuring, use following command to assign the low-speed interface in
the mode of synchronous or asynchronous:
Physical-layer
|async}
Choose the item 25 of prompt, it will display:
(00)flow-control
(01)mode
(02)sampling
(03)speed
Please Input the code of command to be excute(0-3): 1
Input 1,choose the item "mode", it will prompt：
(00)async
(01)sync
Please Input the code of command to be excute(0-1):
Input 0, choose the item "async" to set the interface as asynchronous type.
Input 1, choose the item "sync" to set the interface as synchronous type.
While in the mode of asynchronous, the low-speed serial interface supports all the commands of
standard asynchronous interface. The default mode is synchronous. While in the status of interface
configuring, use following command to returen the mode of low-speed serial interface form
asynchronous to synchronous:
Physical-layer (default) mode
Command
Frame Relay Protocol
HDLC Protocol
PPP Protocol
SDLC Protocol
X.25 Protocol
Command
{sync Assign the low-speed interface in the mode
mode
of synchronous or asynchronous
Flow control
Configure sync or async physical layer on serial interface
set clock sampling mode
port speed
asynchronous mode
synchronous mode
Command
Model Name
Configure synchronous serial encapsulating protocol
Function
Function
Returen to default mode----synchronous mode
- 18 -
Function