MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 23

• Manufacturer Part Number: MTCMR-G-F4
• Description: MODEM GPRS QUAD BAND GSM GLOBAL
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-G-F4

• Frequency: 850MHz, 900MHz, 1.8GHz, 1.9GHz
• Applications: General Purpose
• Interface: RS-232, USB
• Function: Transceiver, Modem
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: GSM, GPRS
• Voltage - Supply: 9 V ~ 32 V
• Package / Case: Module with Case
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Power - Output: -
• Sensitivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 881-1151; MTCMR-G-F4

Generic Dial-Up Method - Non-Windows
Multi-Tech Systems, Inc. MultiModem iCell Intelligent Wireless Modem User Guide
Serial Baud Rate
Your MultiModem iCell is defaulted to a serial baud rate of 115200 from the factory. To enjoy faster baud rates, you can
manually set the modem to a higher speed (230400, 460800, or 921600) using the AT+IPR=<baudspeed>. However, you
must make sure the host serial port is capable of the new speed. If the new speed is set and the host hardware is not capable
of the higher speed, you will need to find a host that is capable or reset the nvram with the following:
Recovery
To do this manually, power off the modem, depress the Caps Lock key and hold down the M key. Power on the modem, a
MU should display. Press the D key and then the S key quickly.
1.
2.
3.
Open a terminal application such as hypterm with the following settings:
19200, 8, NONE, Hardware Flow Control
When the modem boots there is a 500ms window to do the following:
To disable the IP stack, enter AT+WOPEN=0
To set up an Access Point Name (APN):
Dial onto the network using AT*99***1#
Issue:
Response:
Issue:
Response:
Issue:
Response:
AT+CGDCONT=1, “IP”,”<APNSERVER>”
Where <APNSERVER> is the APN server supplied by your carrier
M
MU
D
M
S
S<cr><if>OK<cr><lf>
Chapter 3 – Using your Wireless Modem
23