MTCMR-H4-P1-GB/IE Multi-Tech Systems, MTCMR-H4-P1-GB/IE Datasheet - Page 45

• Manufacturer Part Number: MTCMR-H4-P1-GB/IE
• Description: MODEM CELLULAR QUAD GPRS HSPA
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-H4-P1-GB/IE

• Function: Transceiver, HSPA, Modem
• Modulation Or Protocol: GPRS, GSM, EDGE
• Frequency: 850MHz, 900MHz, 1.8GHz, 1.9GHz
• Applications: General Purpose
• Interface: RS-232, USB
• Data Rate - Maximum: 7.2 Mbps
• Features: UK Power Cord
• Voltage - Supply: 9 V ~ 32 V, USB
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 881-1122

&T Auto-Tests
High Speed HSPA-H4 AT Commands Reference Guide (Document S000483A)
Description:
Syntax:
Values:
Examples:
Notes:
This command runs various auto-tests.
No Read and Test Commands
<n>
AT&T command has to be used when the MS is registered in order to process the AUDIO
test loop correctly.
Caution:
The audio loop activation (enabled with AT&T1 command, disabled with AT&T2 command)
involves some restrictions on the use of other AT commands.
Command
Action Command:
Command
AT&T0
Note: Perform software auto-
tests
AT&T[<n>]
•
•
•
•
Auto-Test Activation
0
1
2
Audio loop mode must not be enabled when a communication is active.
Audio loop mode must not be enabled when a tone is under generation.
Audio loop must be disabled (if active) before opening a communication;
Tone generation and Side Tone modification must not be possible when the audio
loop is active.
Perform software auto-tests
Execute the audio loop test (close)
Stop the audio loop test (open)
Responses
OK
Responses
OK
Note: No software problem detected; all checksums are
correct
Chapter 3 – Supported GSM/WCDMA AT Commands
45