Multi-Tech Systems MTS2SA-T ユーザーズマニュアル

Chapter 6 – Prerequisite Configurations 

Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 

 

 

For any application such as SMTP Client, HTTP Server, POP3 Client, etc. to function, the PPP link 
must be opened up on the modem port.  

MultiConnect IP implementation provides three mechanisms for establishing the physical link over the 
modem port: 

• 

Dialing-trig-mode NONE 

• 

Dialing-trig-mode DTR 

• 

Dialing-trig-mode Command 

Choose the method you desire by configuring the physical link through the Command Line Interface 
(CLI). Use the following command to configure the Physical Link Establishment Method: 

 The modem port is set to modem-answering by default.  

The command 

dialing-trig-mode can be used to set the modem port to dial. 

Upon boot-up, the modem starts dialing using the set of configured parameters. 

Upon boot-up, the modem is set to the answering state by default. 
When the DTR goes high on the device port S0, the modem starts to dial on the 
modem port.  

Link establishment and link termination is at your discretion. 

Command to establish the physical link: 
    # linkup [serial-interface] 

•  This command is valid only for modem port S1 and is invalid for 

device port S0. 

•  This command can be issued only when the dialing-trig-mode 

is command. 

# linkup s1 
ERROR: ‘

dialing-trig-mode is not set to command. 

# linkup s1 
OK: ‘CONNECT 14400 LAPM COMPRESSED’ 

# linkup s1 
ERROR:  ‘NO DIALTONE’ 

# linkup s1 
ERROR:  ‘NO CARRIER’ 

# linkup s1 
ERROR: ‘NO ANSWER’ 
 

# hangup [serial-interface] 

•  This command is valid only for modem port S1 and is invalid for 

device port S0 

•  This command can be issued only when the dialing-trig-mode 

is command. 

# 

hangup s1 

OK 

This hangs up the physical link