CC-2401K2A-CS Copeland Communications Inc, CC-2401K2A-CS Datasheet - Page 21

• 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.
4.
This sequence can be repeated for long messages.
Modem Result Codes and Call Progress
The following table shows the modem result codes that can be used in call progress monitoring. All result
codes are a single character to speed up communication and ease host processing.
Automatic Call Progress Detection
The CC-2401 has the ability to detect dial, busy and ringback tones automatically.
description of the algorithms that have been implemented for these three tones.
-
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The modem, still in command mode, can be placed online as a transmitter by issuing the “ATX2”
command or a receiver by issuing the “ATX3” command. If tonal acknowledgement is not used, the host
can toggle the ESCAPE pin to place the CC-2401 in command mode and issue an “ATX2” or an “ATX3”
command to reverse data direction.
Dial Tone. The dial tone detector looks for a dial tone after going off hook and before dialing is initiated.
This can be bypassed by enabling blind dialing (set S07[6](BD) = 1). After going off hook, the modem
waits the number of seconds in S01 (DW) before searching for the dial tone.
In order for a dial tone to be detected, it must be present for the length of time programmed in S1C (DTT).
Once the dial tone is detected, dialing commences.
programmed in S02 (CW), the CC-2401 hangs up and returns an “n” to the user.
Busy/Ringback Tone. After dialing is completed, the CC-2401 monitors for Busy/Ringback and modem
answer tones. The busy and ringback tone detectors both use the call progress energy detector. The
registers that set the cadence for busy and ringback are listed in the following table.
Command
m
H
K
N
O
R
a
b
c
d
k
L
n
r
v
x
^
f
I
i
l
t
.
Function
British Telecom Caller ID Idle Tone Alert
Detected
Busy Tone Detected
Connect
Connect 1200 bps (when programmed as
V.22bis modem )
Hookswitch Flash or Battery Reversal
Detected
Modem Automatically Hanging Up in !2, !1.
Intrusion Completed (parallel phone back on
hook)
Intrusion Detected (parallel phone off hook
and on the line)
Kissoff Tone Detected
Contact ID Kissoff Tone too long (!1)
Phone Line Detected
No Phone Line Detected
Caller ID Mark Signal Detected
No Carrier Detected
No Dial tone (time-out set by CW[S02])
Modem OK Response
Incoming Ring Signal Detected
Ringback Tone Detected
Dial Tone
Connect 75 bps TX (V.23 originate only)
Overcurrent State Detected After and Off
Hook Event
Kissoff tone detection required
Dialing Complete
Page 21 of 66
Data Sheet
If a dial tone is not detected within the time
CC-2401K2 Datasheet Rev 1.5
CC-2401K2
The following is a