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Configuration Quick Reference A-17
Configuration
Quick-Reference
AT
*
DB3 =S38 This setting allows the timer to start immediately upon detection of a disconnect request. The
request continues to process either its transmit or receive buffers. The modem disconnects
when the timer expires, regardless of the buffer states. NOTE: In Direct mode, no data
buffering occurs. However, the modem delays a disconnect until the timer expires.
AT
*
DC0
DC
=Disable
Data Compression
Data compression is not attempted.
AT
*
DC1 =Enable Data compression is attempted.
If the modem is using LAPM error correction, it uses V.42bis data compression when
DC
=Enabled.
NOTE:
In an application with SDC enabled, LAPM error correction and
V.42bis data compression
only
are used.
If your modem is using MNP error correction, it attempts to negotiate V.42bis and MNP-5 data
compression with the remote modem.
Depending on which data compression type can be accommodated by the remote modem,
V.42bis or MNP-5 is used. Otherwise, no data compression is used.
AT
*
DD0
Dial Wait
=2 sec
Dial Wait
The modem waits 2 seconds for a dial tone.
AT
*
DD1 =3 sec The modem waits 3 seconds for a dial tone.
AT
*
DD2 =4 sec The modem waits 4 seconds for a dial tone.
AT
*
DD3 =6 sec The modem waits 6 seconds for a dial tone.
AT
*
DD4 =12 sec The modem waits 12 seconds for a dial tone.
AT
*
DD5 =15 sec The modem waits15 seconds for a dial tone.
AT
*
DD6 =20 sec The modem waits 20 seconds for a dial tone.
AT
*
DD7 =30 sec The modem waits 30 seconds for a dial tone.
AT
*
DD8 =40 sec The modem waits 40 seconds for a dial tone.
AT
*
DD9 =S7 Dial wait is determined by setting S-Register 7. (See the “S-Registers” section in Chapter 5).
AT
*
DE2
DTE Rate
=300
DTE Rate
The DTE port is configured for 300 bps.
AT
*
DE4 =1200 The DTE port is configured for 1200 bps.
AT
*
DE5 =2400 The DTE port is configured for 2400 bps (this is the lowest rate available in SDC mode).
AT
*
DE6 =4800 The DTE port is configured for 4800 bps.
AT
*
DE7 =7200 The DTE port is configured for 7200 bps.
AT
*
DE8 =9600 The DTE port is configured for 9600 bps.
AT
*
DE9 =12.0 The DTE port is configured for 12,000 bps.
AT
*
DE10 =14.4 The DTE port is configured for 14,400 bps.
AT
*
DE11 =16.8 The DTE port is configured for 16,800 bps.
AT
*
DE12 =19.2 The DTE port is configured for 19,200 bps.
AT
*
DE13 =21.6 The DTE port is configured for 21,600 bps.
AT
*
DE14 =24.0 The DTE port is configured for 24,000 bps.
AT
*
DE25 =26.4 The DTE port is configured for 26,400 bps.
AT
*
DE26 =28.8 The DTE port is configured for 28,800 bps.
AT
*
DE15 =38.4 The DTE port is configured for 38,400 bps.
Table A-1.
AT Commands, Cross-Referenced to Front Panel Options (Continued)
AT
Command
Parameter &
Option Description
Gray shading indicates country-specific options. See Appendix C for your country’s options.