MTCMR-C1-GP-N3 Multi-Tech Systems, MTCMR-C1-GP-N3 Datasheet - Page 80

• Manufacturer Part Number: MTCMR-C1-GP-N3
• Description: MODEM CELLULAR DUAL CDMA
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-C1-GP-N3

• Function: Transceiver, CDMA, Modem
• Modulation Or Protocol: CDMA2000
• Frequency: 800MHz, 1.9GHz, 1575.42MHz
• Applications: Verizon™ Networks (USA)
• Interface: RS-232, USB
• Sensitivity: -161dB
• Data Rate - Maximum: 153.6kbps
• Voltage - Supply: 9 V ~ 32 V, USB
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 881-1097

Speaker & Microphone Selection +SPEAKER
Description:
Syntax:
Defined Values:
Microphone Gain Enable +MGE
Description:
Syntax:
Values:
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C)
This command is used to select the voice path, and activates a speaker/microphone audio path.
The modem provides three audio paths: analog1, analog2, and digital1. An audio path is
functional only with appropriate external hardware.
Voice paths may be changed while a call is in progress as well as in the idle state.
Command Syntax: AT+SPEAKER=<n>
< n >
This command enables or disables the 24dB microphone gain amplifier.
Command Syntax: AT+MGE=<val1>
<Gain>
Command
AT+SPEAKER=0
Note: Select analog1 audio path.
AT+SPEAKER
Note: Select analog1 audio path.
AT+SPEAKER=1
Note: Select analog2 audio path.
AT+SPEAKER=2
Note: Select digital1 audio path.
AT+SPEAKER?
AT+SPEAKER=?
Note: Get the range of values.
Command
AT+MGE
AT+MGE=0
AT+MGE?
Note: Interrogate value
AT+MGE=?
Note: Test command
0
1
2
If no argument is supplied to the command, the default value is assumed. The configuration is
saved immediately. The Analog 1 output is designed to drive a 32Ω speaker, while the Analog
2 output is designed to drive an 8Ω speaker. See the Audio Overview section for more
information.
0
1
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.
Analog1 – LINE_IN and HPH_OUT. (default)
Analog2 – MIC2 and SPKR_OUT.
Digital1 – PCM.
Amplifier Disabled (0dB gain) (default)
Amplifier Enabled (24dB gain)
Possible Responses
OK
Note: Command valid.
OK
Note: Command valid (default path)
OK
Note: Command valid.
OK
Note: Command valid.
+SPEAKER: 1
OK
Note: analog2 audio path active.
+SPEAKER: (0-2)
Possible Responses
OK
Note: Sets default value of 0
OK
Note: Disable amplifier
+MGE: 1
OK
Note: Current value
+MGE : (0-1)
OK
Note: Possible values
Chapter 15 – Audio Commands
80