OSTENT SIMCOM SIM7600E Multi-Band 4G Modem Instruction Manual

1. Introduction

The OSTENT SIMCOM SIM7600E Multi-Band 4G Modem is an industrial-grade communication device designed for reliable data transfer across various cellular networks. It integrates the SIMCOM SIM7600E module, supporting LTE CAT4 for high-speed data, as well as HSPA+, UMTS, GSM, GPRS, and EDGE networks. This modem is controlled via a COM (serial / RS232) port using AT commands, making it suitable for applications requiring bulk SMS, MMS, and TCP/IP communication. This manual provides essential information for setting up, operating, and maintaining your modem.

2. Package Contents

Please verify that all items listed below are included in your package:

• 1 x OSTENT SIMCOM SIM7600E 4G Modem
• 1 x Power Supply Adapter (12V 1A)
• 1 x Data Line (DB9 to DB9 COM port cable, 120cm)
• 1 x DB Antenna (80mm)
• 1 x Sliding SIM Card Slot

Figure 2.1: Package contents including the modem, power adapter, data cable, and antenna.

3. Product Features

• Industrial-Grade Design: Built for robust and reliable performance in various environments.
• Integrated Module: Features the SIMCOM SIM7600E module.
• AT Command Control: Managed via COM (serial / RS232) port using standard AT commands (GSM 07.07, 07.05).
• Messaging Capabilities: Supports bulk SMS and MMS functionality.
• Software Compatibility: Works with any software that supports AT commands, such as SMS Studio, SMS Caster, and SMS Deliverer.
• Multi-Band Network Support: Compatible with LTE-TDD, LTE-FDD, HSPA+, UMTS, GSM, GPRS, and EDGE networks.
• High-Speed Data: LTE CAT4 with uplink speeds up to 50Mbps and downlink speeds up to 150Mbps.
• GNSS Support: Includes GPS One Gen 8B for standalone, assisted, and XTRA positioning.
• Network Protocols: Supports TCP/IP/IPV4/V6 Multi-PDP, MT PDP, FTP/FTPS/HTTP/HTTPS/DNS, and DTMF.
• Rich Interfaces: Offers UART, USB2.0, I2C, and GPIO for extended functionality.

Figure 3.1: Top view of the OSTENT 4G Modem.

4. Setup Instructions

4.1. SIM Card Installation

1. Ensure the modem is powered off and disconnected from any data lines.
2. Locate the sliding SIM card slot on the side of the modem.
3. Gently insert your activated SIM card into the slot until it clicks into place. Ensure correct orientation as indicated on the modem.
4. To remove the SIM card, press the button near the slot to eject it.

4.2. Antenna Connection

1. Locate the antenna connector on the modem.
2. Screw the provided DB antenna onto the connector until it is finger-tight. Do not overtighten.

4.3. Power and Data Line Connection

1. Connect the provided 12V 1A power supply adapter to the modem's power input port.
2. Plug the power adapter into a suitable electrical outlet.
3. Connect one end of the DB9 data line to the modem's COM (RS232) port.
4. Connect the other end of the DB9 data line to the serial port of your personal computer or compatible device.

Figure 4.1: Modem ports and SIM card slot.

5. Operating Instructions

The OSTENT SIMCOM SIM7600E modem is primarily operated through AT commands sent via its COM (serial / RS232) port. Users will need to utilize a terminal program or custom software to send these commands.

5.1. Establishing Communication

1. Ensure the modem is properly connected and powered on.
2. Open your preferred serial communication software (e.g., PuTTY, Tera Term, or a custom application).
3. Configure the serial port settings to match the modem's requirements (e.g., baud rate, data bits, parity, stop bits). Refer to the SIMCOM SIM7600E module documentation for specific settings.
4. Send a basic AT command, such as AT, to verify communication. The modem should respond with OK.

5.2. Sending SMS and MMS

The modem supports sending and receiving SMS and MMS messages. Specific AT commands are used for these functions. Consult the SIMCOM SIM7600E AT Command Manual for detailed instructions on composing and sending messages.

• SMS Example: To send a text message, you might use commands like AT+CMGF=1 (set text mode) followed by AT+CMGS="<phone_number>" and then the message content.
• MMS: MMS functionality involves more complex AT commands for setting up bearer services, content encoding, and sending.

5.3. TCP/IP Communication

The modem supports TCP/IP protocols, allowing for internet connectivity and data transfer. This involves commands for GPRS/LTE context activation, establishing TCP/UDP connections, and sending/receiving data.

• GPRS/LTE Activation: Commands like AT+CGACT or AT+CGSOCKCONT are used to activate the packet data context.
• Socket Commands: Use commands such as AT+CSOCON to establish TCP/UDP connections.

6. Maintenance

• Cleaning: Use a soft, dry cloth to clean the modem's exterior. Avoid liquid cleaners or solvents.
• Environment: Operate the modem within its specified temperature and humidity ranges. Avoid extreme temperatures, direct sunlight, and high moisture environments.
• Connections: Periodically check all cable connections (power, data, antenna) to ensure they are secure.
• Firmware: Keep the modem's firmware updated if new versions are released by the manufacturer. Consult the SIMCOM documentation or OSTENT support for firmware update procedures.

7. Troubleshooting

• No Network Connection:
  • Ensure your SIM card is active and has a valid data plan.
  • Verify that your region is covered by one of the modem's supported network bands (TDD-LTE, FDD-LTE, UMTS, GSM).
  • Check the antenna connection.
  • Confirm that the modem is powered on.
• No Response to AT Commands:
  • Verify the COM port connection between the modem and your computer.
  • Check the serial port settings (baud rate, data bits, parity, stop bits) in your communication software. These must match the modem's configuration.
  • Ensure the correct COM port is selected in your software.
  • Restart the modem and your computer.
• Data Transfer Issues:
  • Confirm that the SIM card has sufficient data allowance.
  • Check network signal strength using appropriate AT commands.
  • Verify APN settings are correctly configured via AT commands.
• General Note: This modem is a professional item. If you encounter persistent issues and are unfamiliar with AT command-based modems, it is recommended to consult the SIMCOM SIM7600E documentation or seek assistance from experienced professionals.

8. Specifications

9. Support Information

For additional support, product information, or to explore other OSTENT products, please visit the official OSTENT store.

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