Multitech MTCMR-E1 Manual de usuario descargar pdf (Pagina 12)

Chapter 1 – General AT Commands

12 Universal IP AT Commands Reference Guide

&C – RLSD (DCD) Option Turn On or Off

Description: The modem controls the RLSD output in accordance with the parameter supplied. This

command sets the DCD On or Off.

Syntax: AT&C[<value>]

AT&C? Read or show the current value.

Values: 0 – Sets DCD to remain On at all times.

1 – Sets DCD to follow the physical connection.

2 – DCD follows the state of the TCP/UDP connection.

Default: 1

Response: OK

Otherwise ERROR

&D – DTR Option

Description: The modem reads the DTR to determine if the Data Terminal is Ready. This command allows the

modem to act on the DTR.

Syntax: AT&D[<value>]

AT&D? Read or show the current value.

Values: 0 – DTR is ignored (AT&D with no parameter).

1 – An Active to Inactive transition disconnects an active TCP/UDP connection

2 – (For Non-MT100SEM) An active to inactive transition disconnects the physical connection

Default: 0

Response: OK

Otherwise ERROR

&F – Reset Factory Defaults

Description: For MT100SEM: This command replaces all settings with the factory defaults but does not store

them to memory. Use &W to store them to the memory.

For NON-MT100SEM: This command replaces the settings of &D, &S, &C, E, and V with default

values and temporarily stores them in volatile memory. After sending AT&F, issue AT&W to

store default settings in non-volatile memory.

Syntax: AT&F

Values: None/No parameters

&S – DSR ON or OFF

Description: This command sets the DSR to ON of OFF.

Syntax: AT&S[<value>]

AT&S? Read or show the current value.

Values: 0 – Sets DSR to remain ON at all times

1 – Sets DSR to follow DCD

2 – DSR follows the state of the TCP/UDP connection

Default: 1

Response: OK

Otherwise ERROR

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Multitech MTCMR-E1 Manual de usuario Pagina 12