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Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

== Summary ==
The SIM7600G-H 4G DTU is an industrial 4G data transmission unit based on the SIM7600G-H module. It supports global LTE bands, GNSS positioning (GPS, Beidou, GLONASS, GALILEO, QZSS), and USB, UART, RS232, and RS485 interfaces for cellular network communication.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL21137 WSAL21137 – Industrial Grade SIM7600G-H 4G DTU, USB UART/RS232/RS485 Multi Interfaces Communication, LTE Global Band Support]
* [https://shop.jw-tech.eu/p/WSAL21150 WSAL21150 – Industrial Grade SIM7600G-H 4G DTU, USB UART/RS232/RS485 Multi Interfaces Communication, LTE Global Band Support]

== Technical overview ==
* Operating bands: LTE-FDD B1–B8, B12, B13, B18, B19, B20, B25, B26, B28, B66; LTE-TDD B34, B38, B39, B40, B41; UMTS/HSPA+ B1, B2, B4, B5, B6, B8, B19; GSM/GPRS/EDGE 850/900/1800/1900 MHz.
* Data rates: 4G (LTE Cat-4) up to 150 Mbit/s downlink, 50 Mbit/s uplink; 3G (HSPA+) 42 Mbit/s DL / 5.76 Mbit/s UL; 2G (EDGE) 236.8 kbit/s both directions.
* Supply voltage range: 7–36 V DC via terminals or a 12 V DC connector; idle current 10–30 mA at 12 V, transmit current 80–450 mA depending on network conditions.
* Serial communication: RS232 via DB9 female with TVS/surge protection; RS485 via terminal block (A/B) with 600 W lightning protection and 15 kV ESD protection; TTL UART at 3.3 V or 5 V levels.
* USB interface: Micro-USB, 5 V, used for parameter configuration, NDIS/RNDIS dial-up, and firmware updates.
* AT command set based on 3GPP TS 27.007, 27.005, and V.25TER; default baud rate 115200 bps, configurable from 300 bps to 921600 bps.
* Onboard STM8 microcontroller acts as a hardware watchdog and reboots the device on abnormal operation.
* Operating temperature range: −40 °C to 80 °C; housing is anodized aluminum with CNC machining.
* GNSS reception: GPS, Beidou, GLONASS, GALILEO, and QZSS; outdoor clear-sky conditions required, performance limited in rain.
* Standard accessories include a high-gain main LTE antenna (~3 m), auxiliary LTE paddle antenna, GPS antenna, serial cable, USB cable, and a 12 V/1 A power supply.

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
AT
ATE0
ATE1
AT+CGMI
AT+CGMM
AT+CGSN
AT+CSUB
AT+CGMR
AT+IPREX
AT+CRESET
AT+CSQ
AT+CPIN?
AT+COPS?
AT+CREG?
AT+CPSI?
AT+CNMP
AT$QCRMCALL=1,1
AT+CUSBPIDSWITCH=9001,1,1
AT+CUSBPIDSWITCH=9011,1,1
AT+CGPS=1
</syntaxhighlight>

== Notes and version constraints ==
* The shipped firmware does not support transparent serial data transmission; choose the SIM7600CE-CNSE variant if that feature is required.
* GNSS positioning requires open sky and about one minute of acquisition time; it will not work reliably in rain.
* Firmware upgrades may fail if the USB cable is low quality or the driver is missing; administrator privileges and a stable cable are recommended.
* The command AT+CUSBPIDSWITCH=9011,1,1 causes the device to reboot – ensure no active connections before running it.
* Some steps are version-sensitive (e.g., QDL tool V1.41); verify the exact firmware version before upgrading.
* Secondary development uses the provided Open Linux SDK; specific implementation details must be worked out by the developer.

== Source and revision record ==
* [https://www.waveshare.com/wiki/SIM7600G-H_4G_DTU SIM7600G-H 4G DTU - Waveshare Wiki]
* Source revision: 82985
* Captured: 2026-09-03T02:35:44+00:00
* SHA-256: <code>f2608620a82ac1a97cd11e3bc07320ac6730e461a55da7496dec849db1e5f95a</code>

WSAL21137 – SIM7600G-H 4G DTU/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex