MC52i AT Command Set

MC52i AT Command Set
4.3 AT&D
4.3 AT&D Set Data Terminal Ready (DTR) line mode
AT&D determines how the ME responds if the DTR line is changed from ON to OFF state during data connection
(CSD or PPP or active Internet service opened with AT^SIST).
Syntax
Exec Command
AT&D[]
Response(s)
OK
PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge Last Reference(s)
- + ± + + + - - - V.250
Parameter Description
(num)(&W)(&V)
[0] ME ignores status of the DTR line.
1 ON->OFF on DTR: Change to command mode while retaining the data connection.
2 (&F) ON->OFF on DTR: Disconnect the data connection (only for CSD and PPP)
and change to command mode. For internet service the behaviour is like
AT&D1. During OFF state of the DTR line auto-answer is disabled.
MC52i_ATC_V01.201 Page 91 of 551 4/16/10
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