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Z0221524VSCR4508 Datasheet

  • Z0221524VSCR4508

  • IC-SM-MODEM CONTROLLER

  • 78頁(yè)

  • ETC

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Z02215
Single-Chip Modem
21
Table 3. AT Command Set (Continued)
North American default values are designated by
bold type.
The operation of these commands, and
the default values of option commands, are configurable for operation in different countries.
Command
D
Dial
Function and Description
The D command initiates a telephone call using the digits and dial
modifiers in the dial string following the command. Any commands
following the dial string on a command line are ignored, unless a
semicolon is the last character in the dial string. If the modem was
already off-hook when the
Dial
command is issued, the modem
dials immediately without trying to detect a dial tone. Characters
other than digits and dial modifiers in a dial string are ignored;
however, ignored characters are counted in the command line buffer.
If line-current sensing is enabled and line current is detected before
the modem is taken off-hook when the modem must dial, a NO
CARRIER result code is displayed and the modem enters the IDLE
state.
If the modem is not required to perform a dial function (for example,
ATD with no dial string), the modem assumes the call was manually
established and attempts to make a connection.
The X1 command may be used to disable the modem's need to detect
dial tone or busy tone before handshaking.
The D command is not valid when the modem is in the ON-LINE
state or when &Q2 or &Q3 is in effect.
See 鈥淒ial Modifiers鈥?on page 37 for more information.
PRELIMINARY
PS001901-MOD0300

Z0221524VSCR4508 產(chǎn)品屬性

  • 25

  • 集成電路 (IC)

  • 接口 - 調(diào)制解調(diào)器 - IC 和模塊

  • -

  • V.21，V.22，V.23，Bell 103，Bell 212A

  • 2.4k

  • 4.5 V ~ 5.5 V

  • 表面貼裝

  • 44-LCC（J 形引線(xiàn)）

  • 44-PLCC

  • 管件

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