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AC75 AT Command Set

4.2 AT&C

AC75_ATC_V01.002 Page 106 of 569 10/30/06

Confidential / Released

4.2 AT&C Set Data Carrier Detect (DCD) Line mode

The AT&C command determines how the state of the DCD line (circuit 109) reflects the AC75's internal activity.

Syntax

Parameter Description

[0] DCD line shall always be on.

(&F)

DCD line shall be on only when data carrier signal is present.

2 DCD line shall be on when one or more Internet services defined on the related

serial channel are in state "Connecting" or "Up" as described below. For details

on the various service states refer to AT^SISI, parameter <srvState> or

AT^SISO, parameter <srvState>.

• SOCKET, HTTP, SMTP, POP3: DCD shall be on when

<srvState>="Connnecting" or "Up"

• FTP: DCD shall be on when data channel is connected, i.e.

<srvState>="Up"

Exec Command

AT&C[<value>]

Response(s)

Reference(s) PIN ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge 4 Last

V.250 , SIEMENS - + - + + + + - + -

<value>

(num)(&W)(&V)

1 2 ... 101 102 103 104 105 106 107 108 109 110 111 ... 568 569

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