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Chapter 2 – AT Commands
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Values:
Defaults:
Description:
Command:
Values:
Default:
Description:
&E n Modem-Initiated Flow Control
Note: For use with MT5600BA and MT5600BR only.
n = 3, 4, or 5
4
&E3 Flow control disabled.
&E4 CTS/RTS hardware flow control.
Note: See also the L5 and &K commands.
&E n V.42bis Data Compression
Note: For use with MT5600BA and MT5600BR only.
n = 14 or 15
15
&E14 V.42bis data compression disabled.
&E15 V.42bis data compression enabled.
Note: This command controls only V.42bis data compression, whereas the %C command
controls both V.42bis and MNP-5 data compression. The command in effect is the
one last entered. See also the L5 command.
&F n Load Factory Settings
n = 0 or 1
None
&F0 Loads factory configuration 0.
&F1 Loads factory configuration 1.
Note: See also the Z , L5 , and &V commands.
&G n V.22bis Guard Tone Control
n = 0, 1, or2
Varies by country
&G0 Disables guard tone.
&G1 Sets guard tone to 550 Hz.
&G2 Sets guard tone to 1800 Hz.
Note: The &G command is not used in North America, and may not be permitted in some
countries.
&K n Flow Control Selection
n = 0, 3, 4, 5, or6
3 (data modem mode)
6 (fax modem and voice modes)
&K0 Disables flow control.
&K3 Enables CTS/RTS hardware flow control.
&K4 Enables XON/XOFF software flow control.
&K5 Enables transparent XON/XOFF flow control.
&K6 Enables both CTS/RTS and XON/XOFF flow control.
Note: See also the &E command
&M n Communications Mode
n = 0–3
0
This command determines the DTR operating mode. The modem treats the &M command
as a subset of the &Q command.
&M0 Selects direct asynchronous operation. Command sequence &M0\N0 selects
normal buffered mode, but command sequence \N0&M0 selects direct mode. This
is because the \N0 command is analogous to the &Q6 command.
&M1 Selects synchronous connect mode with asynchronous offline command mode.
&M2 Note: For use with the MT5656ZDX and MT5656ZDX-V only. Selects synchronous
connect mode with asynchronous offline command mode.
Same as &M1 except that &M2 enables DTR dialing of directory slot 0. The modem
disconnects if DTR is low for more than the period stored in S25 .
&M3 Selects synchronous connect mode. This mode allows DTR to act as a talk/data
switch. A call is manually initiated while DTR is inactive; when it becomes active,
the handshake proceeds in originate or answer mode according to S14 bit 7 .
Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273F)
9
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相关代理商/技术参数
MT5656ZDX-CP 功能描述:MODEM V.92 DATA/FAX 25 PACK RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装
MT5656ZDX-EU 功能描述:MODEM V.92 DATA/FAX EU BUNDLE RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装
MT5656ZDX-GB/IE 功能描述:MODEM V.92 DATA/FAX EK BUNDLE RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装
MT5656ZDX-NPS-CP 制造商:Multi-Tech Systems 功能描述:V.92 DATA/FAX MODEM (NO POWER SUPPLY) (25 MODEMS) - Bulk
MT5656ZDX-V 功能描述:MODEM V.92 VOICE/DATA/FAX RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装
MT5656ZDX-V-CP 制造商:Multi-Tech Systems 功能描述:V.92 VOICE/DATA/FAX MODEM (25 MODEMS) - Bulk
MT5656ZDX-V-EU 功能描述:MODEM V.92 DATA/FAX/VOICE BUNDLE RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装
MT5656ZDX-V-GB/IE 功能描述:MODEM V.92 DATA/FAX/VOICE BUNDLE RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装