MTCMR-H4-P1-GB/IE Multi-Tech Systems, MTCMR-H4-P1-GB/IE Datasheet - Page 52

• 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

+IFC DTE-DCE Local Data Flow Control
High Speed HSPA-H4 AT Commands Reference Guide (Document S000483A)
Description:
Syntax:
Values:
Parameter Storage: The <DCE_by_DTE> and <DTE_by_DCE> parameters are stored in EEPROM using
Examples:
Notes:
This command is controls the operation of local flow control between the DTE and DCE.
If USB port is used:
When the <DCE_by_DTE> parameter is set to 2 (DTE prompts flow control through RTS),
the DCE behavior is as follows:
This behavior allows the user to use the default settings (hardware flow control) and leaves
RTS disconnected. In the case the RTS is connected and is high at least once, it acts on the
DCE.
When the <DTE_by_DCE> parameter is set to 0 (none), the CTS is kept high all the time.
<DCE_by_DTE> Local Flow Control Parameter
<DTE_by_DCE> Local Flow Control Parameter
Command
Action Command:
AT+IFC=<DCE_by_DTE>,<DTE_by_DCE>
Read Command:
AT+IFC?
Test Command:
AT+IFC=?
Command
AT+IFC=?
AT+IFC=0,0 OK
AT+IFC?
• The action command is supported for compatibility reasons (but without effect).
• If the DCE has never detected RTS in the high (or ON) condition since startup, then it
• As soon as the DCE detects RTS high, the signal acts on it. Therefore, subsequent RTS
• The response to the action command is the same as if sent on UART1 or UART2 and
ignores RTS (assuming this signal is not connected).
transition to OFF will prevent the DCE from sending any further data in both online and
offline modes.
the value of the both parameters is always 2.
AT&W.
+IFC: (0,2),(0,2)
OK
Note: New values
+IFC: 0,0
OK
Responses
Note: Possible values
0
2
0
2
None
RTS. Default
None
CTS. Default
Chapter 3 – Supported GSM/WCDMA AT Commands
Responses
OK
+IFC: <DCE_by_DTE>,<DTE_by_DCE>)
OK
+IFC: (list of supported <DCE_by_DTE>s),
(list of supported <DTE_by_DCE>s)
OK
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