DART 200 CDPD Modem User’s Guide5 DART Supported Protocols

Table 5-3. Remote TCP setup

AT Command

Req Opt Def

Description

AT^Annn.nnn.nnn.nn

R

Input IP Address (if not already

n

 

done)

AT\N[1,2]

R

Side Preference (get from carrier)

AT\J0

D

Use default - No channel access

AT\R4

 

restrictions

R

Auto Registration at Power On

ATS13=0

R

With AT\R4 sets Continuous

AT\O0

 

Automatic Registration

R

PAD mode is required for TCP

AT*A1

R

Sets TCP Server mode

ATS0 =1

O

Set modem to Auto Answer

AT*L2100

D

Use default - Listen on port 2100

ATE0

O

No command mode character echo

ATV0

O

Use terse result codes

ATQ0

D

Use default - Result codes are sent to

ATF1

 

the RTU

D

Use default - Do not echo

ATX1

 

transmitted data to the RTU

D

Use default - Extended result codes

AT&C1

D

Use default - DCD follows state of

AT&D0

 

the connection

D

Use default - You may want to

 

 

consider using DTR to escape if

AT&E2

 

RTU supports it

O

Filter escape sequence from output

AT&S0

D

Use default - DSR is always active

AT\F3

D

Use default - Applies only if \M1

AT\M0

 

specified

D

Use default - Do not recognize data

AT\Q0

 

forwarding characters

O

Most RTUs do not use flow control

AT\T1

D

Use default - Timed data forwarding

 

 

should always be used with binary

AT*B0

 

data

D

Use default - Does not apply to TCP

AT*C1

D

Use default - Does not apply to TCP

AT*G1

D

Use default - Does not apply to TCP

AT*K2

O

Set TCP receive keep-alives

ATS86 = 3

O

Use 3 minute keep-alive timeout

AT*R0

D

Use default - Does not apply to TCP

AT*T0

D

Use default - Does not apply to TCP

Sierra Wireless, Inc.

5-20

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Sierra Wireless DART 200 CDPD Modem manual Remote TCP setup AT Command Req Opt Def Description