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參數(shù)資料
| 型號(hào)： | CMX228 |
| 英文描述： | ISDN Protocol Engine? D-Channel Data?? |
| 中文描述： | 綜合業(yè)務(wù)數(shù)字網(wǎng)協(xié)議引擎？ D信道數(shù)據(jù)？？ |
| 文件頁數(shù)： | 21/38頁 |
| 文件大小： | 361K |
| 代理商： | CMX228 |
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ISDN Data and Telephony Protocol Engine (inc. X.25)
CMX228
1999
Consumer Microcircuits Limited
1999
Chiron Technology Limited
21
D/228/1
Format:AT&F<CR>
Sets the following commands and registers to their default values.
It does not change the %A !B, !C registers or the &Z command.
Commands:
E
Q
V
X
&C
&D
&K
Registers:
S0
S37
%B
%D
%E
%L
Format:AT&F9<CR>
Sets all commands and registers to the default values and resets LED indicator and RS232 interface
pins accordingly.
&K (Flow Control)
Format:AT&Kn<CR>
Indicates the method of flow control to be used between the CMX228 and the DTE when in the data
state. There is no flow control when the CMX228 is in the command state.
Suffix n
0
3 (default)
Description
No flow control
Bi-directional RTS/CTS signals
Flow control is only active when in an active data call, ie not when dealing with Hayes commands.
Flow control is applied to the DTE in the following situations:
(i) The remote end signals flow control (the mechanism is protocol dependent).
(ii) Several buffers of data are held waiting transmission across ISDN.
Flow control is applied to the remote end (the mechanism is protocol dependent) if excessive data is
held pending transmission to the DTE, so as to prevent local buffer overflow.
&V (View Active/Stored Profiles)
Format:AT&V<CR>
Causes the CMX228 to display the following command and register values for the stored profile:
Commands:
E
Q
V
X
&C
&D
&K
&Z
Registers:
S0
S37
%A
!C %E
%B
%D
%L
!B
&Z (Store Directory Number)
Format:AT&Z3={DN}<CR>
This command instructs the CMX228 to store a directory number. The stored directory number is then
used by the X.25 call setup as the ‘Calling NUA’.
A directory number consists of a string of characters from the set 0..9,
S
and
#
. The ‘=‘ character can
be omitted. Where a store number is entered, only the value 3 will give an ‘OK’ response. The
contents of the &Z directory number are displayed by using the &V0 command. Up to 20 digits can be
saved. The number must be in quotes. eg at&z3 =’12345’.
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