CC-2401K2A-CS Copeland Communications Inc, CC-2401K2A-CS Datasheet - Page 17

• Manufacturer Part Number: CC-2401K2A-CS
• Description: MODEM 2400BAUD SECURE 3.3V
• Manufacturer: Copeland Communications Inc

Specifications of CC-2401K2A-CS

• Data Format: V.21, V.22, V.23, Bell 103
• Baud Rates: 2.4k
• Interface: UART
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: Module
• For Use With: 539-1002 - KIT EVALUATION WORLD MODEM II
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 539-1010; CC-2401K2A-CS

© 2007, Copeland Communications, Inc.
AT Command Set Description
A
The “A” command makes the modem go off hook and respond to an incoming call. This command is to be
executed after the CC-2401 has indicated a ring has occurred. The modem indicates an incoming ring by
sending an “R” to the UART.
This command is aborted if any other character is transmitted to the modem before the answer process is
completed. Auto answer mode is entered by setting S00 (NR) to a non-zero value. NR indicates the number
of rings before answering the line. After answering, the modem communicates by whatever protocol has been
determined via the modem control registers in S07 (MF1). If no transmit charier signal is received from the
calling modem within the time specified in S39 (CDT), the modem hangs up and enters the idle state.
D
The D commands cause the modem to dial the specified telephone number in the string following the
command. The ATH1 command can be used to go off hook without detecting a dial tone or dialing.
The dial string must contain only the digits “0-9, “*”, “#”, “A”, “B”, “C”, “D”, or the modifiers “;”, “/”, or “,”. A “,”
causes a two second delay (added to the spacing value in S04) in dialing. “/” causes a 125 ms delay in dialing
(added to the spacing value in S04). The “;” returns the device to command mode after dialing and must be
the last character.
If any character is received by the CC-2401 between the ATDT#<CR> command and when the connection is
made (“c” or “d” is echoed), the extra character is interpreted as an abort and the CC-2401 returns to
command mode ready to accept AT commands. A line feed character immediately following the <CR> is
treated as an extra character and aborts the call.
If the modem does not have to dial (ATDT<CR> with no dial string), the modem assumes the call was
manually established and attempts to make a connection.
Automatic Tone/Pulse Dialing
The CC-2401 can be configured to attempt DTMF dialing and automatically revert to pulse dialing if it
determines that the line is not DTMF-capable.
Answer
Dial
DT#
DP#
Tone Dial Number
Pulse Dial Number
Command
A
DT#
DP#
E
H0
H1
I
:I
M
O
RO
S
w##
r#
m#
q#
V0
V1
Z
z
Function
Answer line immediately with modem
Tone dial number
Pulse dial number
Local echo on/off
Go on hook (hang up)
Go off hook
Chip revision
Interrupt read and clear
Speaker control options
Return online
V.23 reverse
Read/write S-Registers
Write S-Register in binary
Read S-Register in binary
Monitor S-Register in binary
Read S-Register in binary
Result code with no carriage return
Result code with added carriage returns
Software reset
Wakeup on ring
Page 17 of 66
Data Sheet
CC-2401K2 Datasheet Rev 1.5
CC-2401K2