CC-14.4K2-IS5 Copeland Communications Inc, CC-14.4K2-IS5 Datasheet - Page 28
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CC-14.4K2-IS5
Manufacturer Part Number
CC-14.4K2-IS5
Description
MODEM 14.4KBAUD SERIAL 5V
Manufacturer
Copeland Communications Inc
Datasheet
1.CC-56K2-CS.pdf
(60 pages)
Specifications of CC-14.4K2-IS5
Data Format
V.22, V23, V.32, Bell 103, Bell 212A
Baud Rates
14.4k
Interface
UART
Voltage - Supply
4.2 V ~ 7 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
© 2004, Copeland Communications, Inc.
Extended AT% Command Set
Command
%Cn
%C0
%C1
%C2
%C3
%On
%O1
%O2
%Vn
%V0
&V1
&V2
%B
%$
Display AT% command settings.
Report blacklist. See also S42 register.
Data compression
Disable V.42bis and MNP5 data compression
Enable V.42bis in transmit and receive paths. If MNP is selected (\N2), then %C1 enables
MNP5 in transmit and receive paths.
Enable V.42bis in transmit path only.
Enable V.42bis in receive path only.
Answer mode
Modem will auto-answer a call in answer mode.
Modem will auto-answer a call in originate mode.
Automatic Line Status Detection
After the %V1 and %V2 commands are issued, the modem will automatically check the telephone
connection for weather or not a line is present. If a line is present, the modem will automatically
check if the line is already in use.
Finally, the modem will check line status both before going off-hook and again before dialing. %V1
uses the fixed method, and %V2 uses the adaptive method. %V0 (default) disables this feature.
Disable automatic line-in-use detection.
Automatic Line Status Detection - Fixed Method.
Description: Before going off-hook with the ATD, ATO or ATA commands the modem compares
the line voltage via LVCS to registers NOLN (U83) and LIUS (U84):
Loop Voltage
0 <= LVCS <= NOLN
NOLN <= LVCS <= LIUS
LIUS <= LCVS
One the call has begun, the off-hook intrusion algorithm operates normally.
In addition, the modem will report "NO LINE" if the telephone line is completely disconnected.
If the HOI bit (U77, bit11) is set, "LINE IN USE" is reported upon intrusion.
Automatic Line Status Detection - Adaptive Method.
Description: Before going off-hook with the ATD, ATO or ATA commands, the modem compares
the line voltage (via LVCS to the NLIU (U85) register:
Loop Voltage
0 <- LVCS <= (0.0625 x NLIU)
(0.0625 x NLIU) < LVCS <= (0.85 x NLIU)
(0.85 x NLIU) < LCVS
(Command Defaults in Bold)
Page 28 of 60
Data Sheet
Report "NO LINE" and remain on-hook.
Report "LINE IN USE" and remain on-hook.
Go off-hook and establish a modem connection.
Action
Action
Report "LINE IN USE" and remain on-hook.
Report "NO LINE" and remain on-hook.
Go off-hook and establish a moden connection.
Action
World modem II Datasheet Rev 1.1
World modem II