CC-2401K2 Page 9 of 66 2007, Copeland Communications, Inc. CC-2401K2 Datasheet Rev 1.5 Host Interface The host interface is serial TTL" />
參數(shù)資料
型號: CC-2401K2A-CS
廠商: Copeland Communications Inc
文件頁數(shù): 66/66頁
文件大?。?/td> 0K
描述: MODEM 2400BAUD SECURE 3.3V
標準包裝: 30
數(shù)據(jù)格式: V.21,V.22,V.23,Bell 103
波特率: 2.4k
電源電壓: 3 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 模塊
包裝: 散裝
配用: 539-1002-ND - KIT EVALUATION WORLD MODEM II
其它名稱: 539-1010
CC-2401K2A-CS-ND
Data Sheet
CC-2401K2
Page 9 of 66
2007, Copeland Communications, Inc.
CC-2401K2 Datasheet Rev 1.5
Host Interface
The host interface is serial TTL. The default host speed of 2400 baud and 8N1 format (8 data bits, no parity bit
and 1 stop bit). The defaults can be changes after initialization by using standard AT commands. A true RS-
232 interface is available on the World modem Evaluation Board.
To change the serial baud rate, the command ATSE0=xxx where xxx is (a carriage return must follow every
command for it to be effected):
DTE Rate (bps)
SE0[2:0] (SD)
300
000
1200
001
2400
010
9600
011
19200
100
38400
101
115200
110
307200
111
As soon as the command is issued, the host must change its baud rate to match the World Modem II’s new
data rate.
Line Interface
The CC-2401 can be configured to any of the Bell and CCITT operation modes listed in table <SC>.
In
V.22bis, the modem connects at 1200 bps if the other modem is configured for V.22. The CC-2401 also
supports S1A and other protocols for the security industry.
Contact the factory for other modem
configurations.
Protocol
Register S07 Value
V.22bis
0x06
V.22
0x02
V.21
0x03
Bell 212A
0x00
Bell 103
0x01
V.23 (1200 tx, 75 rx)
0x14
V.23 (75 tx, 1200 rx)
0x24
V.23 (600 tx, 75 rx)
0x10
V.23 (75 tx, 600 rx)
0x20
The CC-2401 does not continuously check for stop bits on the incoming digital data. If the TXD pin is not high,
the RXD pin may echo meaningless characters to the host. This requires the UART to flush its receiver FIFO
upon initialization.
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