MTCBA-C1-N2 Multi-Tech Systems, MTCBA-C1-N2 Datasheet - Page 86
MTCBA-C1-N2
Manufacturer Part Number
MTCBA-C1-N2
Description
MODEM CDMA RS232 DUAL
Manufacturer
Multi-Tech Systems
Series
MultiModem® Cellr
Datasheets
1.MTCBA-C1-N16.pdf
(135 pages)
2.MTCBA-C1-N16.pdf
(2 pages)
3.MTCBA-C1-N16.pdf
(29 pages)
Specifications of MTCBA-C1-N2
Function
Transceiver, CDMA, Modem
Modulation Or Protocol
CDMA2000
Frequency
800MHz, 1.9GHz
Applications
Sprint Networks (USA)
Interface
RS-232
Data Rate - Maximum
153.6 kbps
Voltage - Supply
9 V ~ 32 V
Package / Case
Module
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
881-1147
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
MTCBA-C1-N2
Manufacturer:
Multi-Tech Systems
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Echo Cancellation +ECHO
Description:
Syntax:
Values:
Loudspeaker Volume Level +CLVL
Description:
Syntax:
Values:
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C)
This command is used to enable, disable or configure the Echo Cancellation functions for voice
calls (in rooms, in cars, etc.). The +SPEAKER function automatically sets echo cancellation
based upon audio path choice and this command allows non-standard operation.
Command syntax: AT+ECHO= <mode>
<mode>
If no argument is supplied to the command, the default value is assumed. The configuration is
saved immediately. See the Audio Overview section for more information.
This command sets the loudspeaker volume level of the current audio path.
Command Syntax: AT+CLVL=<Level>
<Level>
Command
AT+ECHO?
Note: Read current settings
AT+ECHO=0
Note: Set Echo Cancellation Off
AT+ECHO=1
Note: Set Echo Cancellation to Ear Seal
AT+ECHO=2
Note: Set Echo Cancellation to Headset
AT+ECHO=4
Note: Set Echo Cancellation to Handset
AT+ECHO=5
Note: Set Echo Cancellation to Default Path
AT+ECHO
AT+ECHO=?
Note: Test command
Command
AT+CLVL
AT+CLVL=2
AT+CLVL?
Note: Interrogate value
AT+CLVL=?
Note: Test command
0
1
2
3
4
0
1
2
3
4
5
Vocoder Echo Cancellation Off (default for Digital 1 path)
Ear Seal Echo Cancellation (default for Analog 1 path)
Head Set Echo Cancellation
Acoustic Echo Cancellation (AEC)
Speaker Echo Cancellation for car kit operation (default for Analog 2 path)
Default Echo Cancellation for current path settings (default)
-84dB (no output)
-32dB
-28dB
-24dB
-20dB
Possible Responses
OK
Note: Sets default value of 9
OK
Note: Command valid
+CLVL: 2
OK
Note: Current value
+CLVL: (0-12)
OK
Note: Possible values
Possible Responses
+ECHO: 0
OK
OK
OK
OK
OK
OK
Note Set to 5 (default)
+ECHO: (0-5)
OK
Note: Possible values
OK
Chapter 15 – Audio Commands
86
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