参数资料
型号: CC-56K2-CS5
厂商: Copeland Communications Inc
文件页数: 11/60页
文件大小: 0K
描述: MODEM 56KBAUD SERIAL 5V
标准包装: 30
数据格式: V.22,V23,V.32,V.34,V.90,Bell 103,Bell 212A
波特率: 56k
电源电压: 4.2 V ~ 7 V
安装类型: 表面贴装
封装/外壳: 模块
包装: 散装
其它名称: 539-1006
Data Sheet
World modem II
Page 19 of 60
2004, Copeland Communications, Inc.
World modem II Datasheet Rev 1.1
Basic AT Command Set (Command Defaults in Bold) (Continued)
Command
Action
+ES Options
Enable synchronous assess mode.
+ES = A
A
Specifies the mode of operation when initiating a modem connection.
D Disable synchronous access mode.
6 Enable synchronous access mode when connection is completed and data state is entered
C
Specifies the mode of operation when answering a modem connection.
D Disable synchronous access mode
+ES = A,,C
8
Enable synchronous access mode when connection is completed and data state is
entered.
+ESA Options
Synchronous access mode control options.
+ESA = A
A
Specifies action taken if an underrun condition occurs during transparent sub-mode.
+ESA = A,B
0 Modem transmits 8-bit SYN sequences on idle.
+ESA = A,B,C
B
Specifies action taken if an underrun condition occurs after a flag during framed sub-mode.
+ESA = A,B,C,E
0 Modem transmits 8-bit HDLC flags on idle.
+ESA = A,B,C,E,F
C
Specifies action taken if an underrun or overrun condition occurs after a non-flag during
framed sub-mode.
0 Modem transmits abort on underrun in middle of frame.
1 Modem transmits flag on underrun in middle of frame and notifies host of underrun or
overrun.
D
Specifies V.34 half duplex operation.
This parameter should not be used.
E
Specifies CRC polynomial used while in framed sub-mode
0 CRC generation checking disable.
1 16-bit CRC generation and checking is performed by the modem.
F
Specifies NRZI encoding and decoding.
0 NRZI encoding and decoding disabled.
G
Specifies SYN.
+ESA =
A,B,C,E,F,G
255
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