Specifications

CONFIGURING AND COMMUNICATING WITH YOUR DEVICE
+CSQ: 15,1
Checking Network Registration for EV2 Devices
To verify an EV2 devices is registered on the network, enter:
AT!STATUS
The device returns several lines of modem status information. The second to last line indicates either:
Modem has registered.
or
Modem has NOT registered.
Sending and Receiving Data
Connecting Device to TCP Server as TCP Client
To send data through a connect socket:
1. Define PDP Content (APN for SIM)
Enter
AT+CGDCONT=1,IP,"XXX.APN.com" where XXX.APN.com is the APN your cellular provider assigned to
your SIM card.
The device responds with OK
2. Bring up Data Connection Using Internal IP stack
Enter:
AT#SGACT=1,1
The device responds with the IP Address the cellular provider assigned to the device on connection,
followed by OK. For example:
#SGACT: 25.194.185.116
OK
3. Create Client Connection to TCP Server on Port 500
Enter:
AT#SD=1,0,500,"###.##.###.##" where ###.##.###.## is the TCP server IP Address.
The device responds with OK. You can now send or receive data without entering additional commands.
4. Create Client Connection to TCP Server on Port 7000
Enter:
AT#SD=1,0,700,"###.##.###.##" where ###.##.###.## is the TCP server IP Address.
The device responds with OK. You can now send or receive data without entering additional commands.
Closing the Socket and the Connection
To close the socket:
■ Enter the escape sequence:+++
■ To close Socket 1, enter:AT#SH=1
QuickCarrier™ USB-E MT100UCC-C2 Developer Guide 27