MTCMR-H4-P1-GB/IE Multi-Tech Systems, MTCMR-H4-P1-GB/IE Datasheet - Page 48

• 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

+DS V42bis Data Compression
High Speed HSPA-H4 AT Commands Reference Guide (Document S000483A)
Examples:
Description:
Syntax:
Values:
Parameter Storage:
Examples:
This command enables or disables V.42bis data compression if this feature is supported on
the product. Note that the product allows only the MNP2 protocol.
<dir>
<neg> Specifies whether or not the DCE may continue to operate if the desired result is not
<P1>
<P2>
Command
Action Command: AT+DS=[<dir>]
[, [<neg>] [,[<P1>] [,[<P2>] ] ] ]
Read Command:
AT+DS?
Test Command:
AT+DS=?
Command
AT+DS=?
AT+DS=3,0,2048,250
Note: Set new parameters
AT+DS?
Command
AT+DR=?
AT+DR=1
Note: Reporting enabled
AT+DR?
ATD01234567879
Note: Outgoing data call
The desired direction(s) of operation for the data compression feature from the DTE
point of view.
0
1
2
3
obtained.
0
1
The maximum number of dictionary entries that may be negotiated,
Range: 512 to 2048. Default is 2048.
The maximum string length to be negotiated.
Range: 6 to 250. Default is 20.
All parameters are stored in EEPROM using AT&W. The default value can be
restored using AT&F.
Negotiated
Transmit only
Receive only
Both directions, accept any direction. Default.
Do not disconnect if V42bis is not negotiated by the remote DCE as specified in
<dir>. Default.
Disconnect if V42bis is not negotiated by the remote DCE as specified in <dir>
Responses
+DR: (0-1)
OK
OK
+DR: 1
OK
+DR: V42B
CONNECT 9600
Responses
+DS: (0-3),(0,1),(512-2048),(6-250)
OK
OK
+DS: 3,0,2048,250
OK
Chapter 3 – Supported GSM/WCDMA AT Commands
Responses
OK
+DS: <dir>,<neg>,<P1>,<P2>
OK
+DS: (list of supported <dir>s),
(list of supported <neg>s),
(list of supported <P1>s),
(list of supported <P2>s)
OK
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