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SIMCom SIM7600E-H R2 LTE CAT-4 mPCIe EU

Article Number: 11394
Brand: SIMCom
Supplier number: S2-10AFD

The SIMCom SIM7600E-H R2 mPCIe is Multi-Band LTE-TDD/LTE-FDD module solution in a mPCIe form factor. SIM7600E-H is a LTE CAT4 module with support of up to 150Mbps downlink data transfer.

With abundant application capability like TCP/UDP/FTP/FTPS/HTTP/HTTPS/DNS, the module provides much flexibility and ease of integration for customer's application

SIM7600E-H is for the European market.

This module is part of the SIM7600X-H series, you can find the series here
Contact sales@techship.com for more information

End-of-life

This product has reached
end-of-life and can not be
ordered any more.

Quantity Price

No prices available

For more information
please contact us at
sales-americas@techship.com

For larger quantities and complete pricing, please sign in or register

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Region
Europe
Primary Technology
LTE - cat 4
Fallback
3G
2G
Form Factor
mPCIe - full size
LTE Bands
B1 (FDD 2100)
B3 (FDD 1800)
B5 (FDD 850)
B7 (FDD 2600)
B8 (FDD 900)
B20 (FDD 800DD)
B38 (TDD 2600)
B40 (TDD 2300)
B41 (TDD 2500)
UMTS Bands
B1 (2100)
B8 (900)
B5 (850)
GSM/EDGE Bands
B3 (1800)
B8 (900)
Max DL Speed
150 Mbps
Max UL Speed
50 Mbps
GNSS
Yes
GNSS technology
GPS
GLONASS
GNSS antenna support
Passive
Active
Antenna Connectors
IPEX MHF/U.FL
Certification
NBTC
IMDA
UKCA
RoHS
REACH
NCC
IDA
CE RED
GCF
Carrier Certification
Deutsche Telekom
Operating Temperature Range
-40 °C – 85 °C
Extended Operating Temperature Range
-40 °C – 85 °C
Chipset
Qualcomm
MDM9607-0
Data Interface
USB 2.0
Audio interface
Digital PCM signal input/output in socket
Digital PCM signal over USB interface
Voice Call Support
Yes
Driver Support
Windows 10
Windows 8.1
Windows
Windows 8
Windows 7
Android
Linux
MIMO (Multiple-Input Multiple-Output)
Yes
FOTA Firmware Updates
No
SIM interface
Through miniPCIe connector
Document summarizing and describing the GPS systems epoch roll over dates in Simcom products GPS trackers and how to take precaution for it.

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Uploaded at
2020-01-07 14:50:05
Last updated
2021-12-10 13:41:30
Version
191119
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SIMCom SIM7600SA-H LTE CAT-4 mPCIe with SIM holder
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SIM7600E-TE-KIT
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Simcom SIM7600E R2 LTE CAT-1 mPCIe
This manual gives general guidelines worth considering when designing and selecting main and diversity antennas for cellular applications.

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This archive contains the SIMCom:
SIM7100_SIM7500_SIM7600 Series_GPIO_Application Note_V3.00
SIM7100_SIM7500_SIM7600 Series_LBS_Application Note_V3.00
SIM7100_SIM7500_SIM7600 Series_Sleep Mode_Application Note_V3.00
SIM7100_SIM7500_SIM7600 Series_UART_Application Note_V3.00
SIM7100_SIM7500_SIM7600 Series_UIM HOT SWAP_Application Note_V3.00
SIM7100_SIM7500_SIM7600_SIM7800 Series_USB AUDIO_Application Note_V3.00
SIM7100_SIM7600 Series_TTS_Application Note_V3.0
SIM7500_IM7600_Series_HTTP(S)_Application Note_V3.00
SIM7500_SIM7600 Series_FOTA_Application Note_V3.00
SIM7500_SIM7600 Series_FTP(S)_Application Note_V3.00
SIM7500_SIM7600 Series_GNSS_Application Note_V3.00
SIM7500_SIM7600 Series_Jamming Detection_Application Note_V3.00
SIM7500_SIM7600 Series_SAT_Application Note_V3.00
SIM7500_SIM7600_SIM7800 Series_ECALL_Application Note_V3.00
SIM7500_SIM7600_SIM7800 Series_MQTT(S)_Application Note_V3.00
SIM7500_SIM7600_SIM7800 Series_SMS_Application Note_V3.00
SIM7500_SIM7600_SIM7800 Series_SSL_Application Note_V2.00
SIM7500_SIM7600_SIM7800 Series_TCPIP_Application Note_V3.00
SIM7600 Series_HSIC_LAN_Application Note_V2.00
SIM7600 Series_Open Linux Sleep&Wake-Up_Application Note_V2.00
SIM7600 Series_Open Linux UART&SPI_Application Note_V2.00
SIM7600 Series_Open Linux_Development Guide_V2.00
SIM7600 Series_SFOTA_Application Note_V2.00
SIM7600_SIM7800 Series_SGMII_LAN_Application Note_V3.00
SIM7600M22_MIFI_RTL_Application Note_V2.00
SIM7600M22_MIFI_SIM7800 Series_BT_Application Note_V3.00
Simcom_Android_ril_User Guide_V2.00

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CE RED Certificate documents for SIMCom SIM7600E-H SMT & mPCIe

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SIMCom Update Tool and User Guide for Simcom SIM7000 series, SIM7070 series, SIM7080 series, SIM7090 series, SIM7500 series, SIM7600 series, SIM79xx series, SIM820x series, SIM830x series.

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Uploaded at
2021-02-05 11:23:39
Last updated
2023-08-09 13:47:40
Version
R1.67
Requirements

Microsoft Windows 7 desktop system or later
SIMCom Windows drivers installed
(Check during update that normal operational mode and firmware update mode drivers load properly in Windows device manager)
SIMCom module firmware update file

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Simcom SIM7600E R2 LTE CAT-1 mPCIe
This archive contains the SIMcom SIM7500 and SIM7600 series cellular modules ADB fastboot firmware update procedure guide, and tools/source for both Windows and Linux based systems.

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This archive contains the Windows operating system drivers for the SIM7000, SIM7100, SIM7230, SIM7500, SIM7600, SIM7800 series Qualcomm chipset based cellular modules. Please refer to the installation instructions document for USB mode selection details.

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Uploaded at
2018-01-12 16:46:48
Last updated
2021-12-10 13:46:31
Version
V1.02
Requirements
Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP operating systems
Related products
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SIMCom SIM7000G
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SIMCom SIM7600E-H LTE SMT EU
SIMCom SIM7600E-H LTE CAT-4 mPCIe EU
SIMCom SIM7600E-H LTE CAT-4 mPCIe SIM
SIMCom SIM7600A-H LTE CAT-4 mPCIe Audio
SIMCom SIM7600SA-H LTE CAT-4 mPCIe
Simcom SIM7600JC-H LTE CAT-4 mPCIe
SIMCom SIM7600A-H LTE CAT-4 mPCIe US
SIMCom SIM7600V-H LTE CAT-4 mPCIe Audio Verizon
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SIMCom SIM7600E LTE CAT-1 mPCIe
SIMCom SIM7600SA LTE CAT-1 mPCIe
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SIMCom SIM7600G R2 LTE CAT-1 SMT
SIMCom SIM7600SA LTE CAT-1 SMT
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SIM7600E-TE-KIT
This archive contains the Simcom SIM7500 and SIM7600 Series Linux Network NDIS driver installation files and guide on how to install them without rebuilding the kernel.
Please relate to FAQ "How to integrate Simcom SIM7500/SIM7600 Series Linux NDIS driver without rebuilding kernel" for further details.

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This archive contains the RIL library and drivers for Android versions 4.0, 4.2, 4.4, 5 ,6 ,7 and 8
Included is also the related user guide.

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This archive contains the Simcom SIM7600E-H and SIM7600SA-H variants firmware LE11B13SIM7600M22 update archive.

It is not applicable for the other variants such as SIM7600A-H or SIM7600V-H for the North American market.

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This archive contains the Simcom SIM7600E-H and SIM7600SA-H variants firmware LE11B13SIM7600M22 update archive and related release notes.

It is not applicable for the other variants such as SIM7600A-H or SIM7600V-H for the North American market.

Download

This archive contains the Simcom SIM7600E-H and SIM7600SA-H variants firmware LE11B12SIM7600M22 update archive and related release notes.

It is not applicable for the other variants such as SIM7600A-H or SIM7600V-H for the North American market.

Download

This archive contains the Simcom SIM7600E-H and SIM7600SA-H variants firmware LE11B11SIM7600M22 update archive and related release notes.

It is not applicable for the other variants such as SIM7600A-H or SIM7600V-H for North American market.

Download

This archive contains the Simcom SIM7600E-H and SIM7600SA-H variants firmware LE11B09SIM7600M22 update archive and related release notes.

It is not applicable for the other variants such as SIM7600A-H or SIM7600V-H for North American market.

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This archive contains the Simcom SIM7600* -H series LE11B09SIM7600M22 firmware update files and release notes.
It is not applicable for the SIM7600A-H or SIM7600V-H versions for North American market.

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This archive contains the firmware update files and related release notes for SIM7600 -H series.
It is not applicable for the SIM7600A-H or SIM7600V-H versions for North American market.

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Uploaded at
2018-04-09 14:05:47
Last updated
2018-04-10 10:48:34
Version
LE11 B08 SIM7600 M22
Requirements
SIM7600 -H series modules (not SIM7600A-H)
Simcom firmware update tools
Related products
SIMCom SIM7600E-H LTE SMT EU
SIMCom SIM7600E-H LTE CAT-4 mPCIe EU
SIMCom SIM7600SA-H LTE CAT-4 mPCIe
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SIMCom SIM7600E-H LTE CAT 4 -mPCIE with Audio
SIMCom SIM7600E-H R2 LTE CAT-4 mPCIe EU
This archive contains the firmware update files and related release notes for SIM7600 -H series.
It is not applicable for the SIM7600A-H version for North America market.

Download

Question

How to use NetworkManager and ModemManager in Linux to automatically establish a cellular data connection and configure IP details?

Solution

Using NetworkManager and ModemManager in Linux to automatically establish a connection and configure IP details

In this FAQ we will show how to set up NetworkManager to automatically configure, establish the cellular data connection in your system.

NetworkManager and ModemManager are open source tool for Linux to manage several types of networks and interfaces such as ethernet, wifi, etc. It can also manage cellular WWAN interfaces through the ModemManager tool.
It is hosted by the Freedesktop.org community and driven by Aleksander Morgado and other contributors. please visit https://wiki.gnome.org/Projects/NetworkManager and https://www.freedesktop.org/wiki/Software/ModemManager/ for latest information, source code, API reference manuals, debugging tips, contribution, mailing list etc.

ModemManager is capable of communicating over several types of device control channels such as QMI/RMNET, MBIM, MODEM / AT command etc. But support for vendor proprietary or out-of-kernel drivers are none or very limited. Such drivers are gobinet, simcom_wwan and other drivers provided by the vendors directly.

Many Linux distributions have NetworkManager and ModemManager pre-installed or they can typically easily be installed through the systems package manager.
In Ubuntu for example apt can install it for you by command if not already installed:
apt install network-manager

Check with commands below that you have both tools installed in system and their versions.
NetworkManager -V
ModemManager -V

ModemManager (and NetworkManager) are continuously developed for better compatibility with the cellular devices, therefore it is recommend to use a recent version of the tools and in case of problem situations, evaluate the latest versions from source and check the mailing list archives for possible discussions on the problem experienced.

Keep in mind that NetworkManager and ModemManager projects are not directly developed or driven by the cellular device vendors and the compatibility with the device you aim to use can be limited. Some vendors contribute with code to make their devices fully compatible, while others don't. Many cellular devices can be set to expose standardized types of USB network interface and control channel such as MBIM interface by USB-IF or the Qualcomm proprietary interface QMI that ModemManager will try to identify, and often manage to work successfully with but there are exceptions also.

Both NetworkManager and ModemManager have command line interfaces (nmcli and mmcli respectively) where you can interact with the management tools.

Relate to the following FAQ if you want more details for using ModemManager only to configure and control the cellular device but manually establish, maintain the connection and network interface IP address details.
How-to guide: control and set up a data connection in Linux using ModemManager as connection manager?

Have ModemManager list all the cellular device it has detected. Here we use the Alcatel IK41 series with MBIM interface in this example:
mmcli --list-modems
/org/freedesktop/ModemManager1/Modem/0 [Alcatel] Mobilebroadband

General details and status of them modem can be listed with "--modem" option.
mmcli --modem=0
-----------------------------
General | dbus path: /org/freedesktop/ModemManager1/Modem/0
| device id: 998e478c5b14c75e16bffe6abaacabef22fb2f5b
-----------------------------
Hardware | manufacturer: Alcatel
| model: Mobilebroadband
| firmware revision: MPSS.JO.2.0.2.c1.7-00004-9607_
| carrier config: default
| h/w revision: 0
| supported: gsm-umts, lte
| current: gsm-umts, lte
| equipment id:
-----------------------------
System | device: /sys/devices/pci0000:00/0000:00:14.0/usb3/3-1
| drivers: option1, cdc_mbim
| plugin: Generic
| primary port: cdc-wdm0
| ports: cdc-wdm0 (mbim), ttyUSB0 (at), ttyUSB2 (at), wwan0 (net),
| ttyUSB1 (qcdm)
-----------------------------
Status | lock: sim-pin
| unlock retries: sim-pin (3)
| state: locked
| power state: on
| signal quality: 0% (cached)
-----------------------------
Modes | supported: allowed: 2g; preferred: none
| allowed: 3g; preferred: none
| allowed: 4g; preferred: none
| allowed: 2g, 3g; preferred: 3g
| allowed: 2g, 3g; preferred: 2g
| allowed: 2g, 4g; preferred: 4g
| allowed: 2g, 4g; preferred: 2g
| allowed: 3g, 4g; preferred: 3g
| allowed: 3g, 4g; preferred: 4g
| allowed: 2g, 3g, 4g; preferred: 4g
| allowed: 2g, 3g, 4g; preferred: 3g
| allowed: 2g, 3g, 4g; preferred: 2g
| current: allowed: 2g, 3g, 4g; preferred: 2g
-----------------------------
Bands | supported: egsm, dcs, pcs, g850, utran-1, utran-8, eutran-1, eutran-3,
| eutran-7, eutran-8, eutran-20, eutran-28
| current: egsm, dcs, pcs, g850, utran-1, utran-8, eutran-1, eutran-3,
| eutran-7, eutran-8, eutran-20, eutran-28
-----------------------------
IP | supported: ipv4, ipv6, ipv4v6
-----------------------------
SIM | dbus path: /org/freedesktop/ModemManager1/SIM/0

Check that the cellular device is managed by NetworkManager by not having state "unmanaged" listed for it.
nmcli device status
DEVICE TYPE STATE CONNECTION
cdc-wdm0 gsm disconnected --
enp3s0 ethernet unmanaged --
lo loopback unmanaged --

Now you should create a connection profile in NetworkManager for your specific network carrier and SIM card with the "nmcli connection add" command:
For example:
nmcli connection add type gsm ifname '*' con-name '3-sweden' apn 'data.tre.se' connection.autoconnect yes gsm.pin 0000

- type is gsm for all typical cellular connections unless it is of cdma type.
- ifname is the control interface name, in this case cdc-wdm0, wildcard can be used also to have it autoselect.
- con-name is the profile name you want to give it.
- apn is provided by your network carrier and tells the modem what attach point it should use for the data connection.
- connection.autoconnect set to yes will make NetworkManager always try to auto connect and maintain this profile connection.
- gsm.pin lets you provide a pin code for the SIM card, that NetworkManager will try to use if PIN check is enabled for SIM card.

There are several additional commands and attributes available such as username and password settings for the APNs etc. Refer to the NetworkManager help and manual pages for full details on the commands.

If successful you should receive a reply similar to this one:
Connection '3-sweden' (cad6fcbf-2cb1-4796-b7e6-67b9f9635aef) successfully added.

You can check the status now by command:
nmcli device status
DEVICE TYPE STATE CONNECTION
cdc-wdm0 gsm connected 3-sweden
enp3s0 ethernet unmanaged --
lo loopback unmanaged --

Where connected should be listed as state if the connection establishment was successful.

If the connection is not successful or you want more details about the device and connection you can check commands:

You can list the current status with command:
nmcli radio
WIFI-HW WIFI WWAN-HW WWAN
enabled enabled enabled enabled

nmcli device show cdc-wdm
GENERAL.DEVICE: cdc-wdm0
GENERAL.TYPE: gsm
GENERAL.HWADDR: (unknown)
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.CONNECTION: 3-sweden
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/18
IP4.ADDRESS[1]: 2.68.73.130/30
IP4.GATEWAY: 2.68.73.129
IP4.ROUTE[1]: dst = 2.68.73.128/30, nh = 0.0.0.0, mt = 700
IP4.ROUTE[2]: dst = 0.0.0.0/0, nh = 2.68.73.129, mt = 700
IP4.DNS[1]: 80.251.201.177
IP4.DNS[2]: 80.251.201.178
IP6.ADDRESS[1]: 2a02:aa1:1017:6d11:1060:3dff:feac:e92f/64
IP6.ADDRESS[2]: 2a02:aa1:1017:6d11:6474:7254:7b72:eb09/64
IP6.GATEWAY: 2a02:aa1:1017:6d11:21e6:9049:6cfb:8ac3
IP6.ROUTE[1]: dst = ff00::/8, nh = ::, mt = 256, table=255
IP6.ROUTE[2]: dst = 2a02:aa1:1017:6d11::/64, nh = ::, mt = 700
IP6.ROUTE[3]: dst = ::/0, nh = fe80::21e6:9049:6cfb:8ac3, mt = 1024
IP6.ROUTE[4]: dst = 2a02:aa1:1017:6d11::/64, nh = ::, mt = 256
IP6.ROUTE[5]: dst = ::/0, nh = 2a02:aa1:1017:6d11:21e6:9049:6cfb:8ac3, mt = 700
IP6.DNS[1]: 2a02:aa0::55
IP6.DNS[2]: 2a02:aa0::56

nmcli connection show
NAME UUID TYPE DEVICE
3-sweden e946017f-2e9c-477b-89ad-4c31e7331d65 gsm cdc-wdm0

Ifconfig should now show the related IP address details already set to the network interface by NetworkManager:
ifconfig
wwan0: flags=4291 mtu 1500
inet 2.68.73.130 netmask 255.255.255.252 broadcast 2.68.73.131
inet6 2a02:aa1:1017:6d11:6474:7254:7b72:eb09 prefixlen 64 scopeid 0x0
inet6 2a02:aa1:1017:6d11:1060:3dff:feac:e92f prefixlen 64 scopeid 0x0
ether 12:60:3d:ac:e9:2f txqueuelen 1000 (Ethernet)
RX packets 186 bytes 10886 (10.8 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 5 bytes 480 (480.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

You can now for example test the connection over the network interface by sending ping requests.
Testing IPV4 connection:
ping -4 -I wwan0 8.8.8.8
PING 8.8.8.8 (8.8.8.8) from 2.68.73.130 wwan0: 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=118 time=55.8 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=118 time=45.4 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=118 time=42.9 ms
--- 8.8.8.8 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 42.918/48.053/55.845/5.601 ms

Testing IPV6 connection: (if your cellular device, network subscription and APN supports it)
ping -6 -I wwan0 2600::
PING 2600::(2600::) from 2a02:aa1:1017:6d11:1060:3dff:feac:e92f wwan0: 56 data bytes
64 bytes from 2600::: icmp_seq=1 ttl=46 time=172 ms
64 bytes from 2600::: icmp_seq=2 ttl=46 time=171 ms
64 bytes from 2600::: icmp_seq=3 ttl=46 time=169 ms
64 bytes from 2600::: icmp_seq=4 ttl=46 time=168 ms
--- 2600:: ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 167.921/170.037/172.272/1.651 ms

The connection is successful and automatic reconnect is working when testing to unplug and plug in the device again.
For additional configurations, commands and available attributes, please relate to the manual pages for NetworkManager and ModemManager.

Troubleshooting logs:
NetworkManager and ModemManager write log messages to the Linux syslog file /var/log/syslog.
In case of problems with establishing a cellular data connection, please copy the logfile after the problem have appeared and include it in a Techship technical support ticket.

In some situations more detailed debug logs are needed, these can be acquired by changing the log levels for NetworkManager and ModemManager and run them manually.

To capture debug logs, please first disable and stop the normal services:
systemctl stop NetworkManager ModemManager
systemctl disable NetworkManager ModemManager

Run them manually in background with debug level set:
/usr/sbin/ModemManager --log-level=DEBUG &> /dev/null &
/usr/sbin/NetworkManager --log-level=DEBUG &

Reproduce the cellular data connection problem.
Once completed, kill the processes:
killall -TERM NetworkManager ModemManager

Copy the relate messages in syslog to a mm-nm-sys-debug.log logfile:
grep -E 'ModemManager|NetworkManager|systemd|dbus-daemon|dhclient' /var/log/syslog > mm-nm-sys-debug.log

Activate and start the services again:
systemctl enable NetworkManager ModemManager
systemctl start NetworkManager ModemManager

Include the mm-nm-sys-debug.log in a technical support ticket at Techship.com where you describe the issue in details and include other relevant information also such as kernel version, ModemManager and NetworkManager versions, dmesg log etc.

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Question

How-to use the SIM7600 series modules in RNDIS USB mode with automatic connection management

Solution

Both Windows and Linux systems can support RNDIS interface drivers for the SIM7600 series modules, this example demonstrates how it can be done in a Linux environment.
There is a open source Linux in-kernel driver supporting RNDIS USB network interfaces called rndis_host.
Make sure to have the kernel config for rndis host driver support enabled.
Read more about the kernel configs in this FAQ:
Common Linux kernel modules and configs necessary for communicating with cellular modules over USB interface

By default the Simcom modules are delivered with QMI/RMNET network interface enabled, so you will need to change the USB mode by AT commands on the Modem/AT serial ports exposed over the USB interface.
lsusb
Bus 001 Device 006: ID 1e0e:9001 Qualcomm / Option

Switch the module from USB PID 9001 to USB PID 9011 mode for RNDIS interface:
AT+CUSBPIDSWITCH=9011,1,1

The module will now restart automatically and re-enumerate with a new USB ID.
Check dmesg or with lsusb that you have the Simcom SIM7600 module detected with, VID: 1e0e PID: 9011
lsusb
Bus 001 Device 006: ID 1e0e:9011 Qualcomm / Option

Verify with lsusb -t that the Linux in-kernel driver rndis_host driver is loaded correctly for interface 0 and 1.
It can look e.g. like this:
lsusb -t

/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/8p, 480M
|__ Port 4: Dev 6, If 3, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 4: Dev 6, If 1, Class=CDC Data, Driver=rndis_host, 480M
|__ Port 4: Dev 6, If 6, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 4: Dev 6, If 4, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 4: Dev 6, If 2, Class=Vendor Specific Class, Driver=option, 480M
|__ Port 4: Dev 6, If 0, Class=Communications, Driver=rndis_host, 480M
|__ Port 4: Dev 6, If 5, Class=Vendor Specific Class, Driver=option, 480M

If your system don't load the option serial interfaces correctly, then they can be forcefully loaded as bellow:
modprobe option
echo 1e0e 9011 > /sys/bus/usb-serial/drivers/option1/new_id

Relate to the following Linux kernel commit for details on how to modify the usb serial option driver source code in order to auto load the drivers:
USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode

You should now have the Linux system drivers ready for usage, and a rndis network interface visible (typically named usb0). The host system have a DHCP client active on the network interface. Module will delegate a Network Address Translated (NAT) IP to the Linux host system.

Example:
dhclient -v usb0
Listening on LPF/usb0/4a:de:a7:7e:46:07
Sending on LPF/usb0/4a:de:a7:7e:46:07
Sending on Socket/fallback
DHCPREQUEST of 192.168.225.46 on usb0 to 255.255.255.255 port 67 (xid=0xaabce35)
DHCPACK of 192.168.225.46 from 192.168.225.1
RTNETLINK answers: File exists
bound to 192.168.225.46 -- renewal in 21475 seconds.

In order to enable the automatic network connection establishment, the SIM card should have PIN code check disabled. If it isn't disabled, the Linux host system need to provide the PIN code to module after each modem restart.
Refer to AT command: AT+CPIN=xxxx for further details.

The Access Point Name (APN) related to your cellular subscription needs to be configured once to the module so the automatic connection establishment can be established on the correct data bearer.

Defining an empty string as value on the AT+CGDCONT profile, will make the module try to subscribe for a APN, however this may not always work e.g. in roaming conditions, so best procedure is to always configure the correct ones for the network and your subscription.

Check the currently configured APN profiles:
AT+CGDCONT?
You should have at least profile 1 and 6 defined to empty strings to enable subscribe of the APN details: AT+CGDCONT=1,"IPV4V6",""
AT+CGDCONT=6,"IPV4V6",""

+CGDCONT Profile 1 is used for the cellular network registration process and APN at profile 6 will be tied to the RNDIS network interface for data connection.

Define both APN profiles according to the details you have obtained for your cellular subscription. Most often the APN details are same for both network registration and the actual data connection, then you define same details to both profile 1 and 6:
AT+CGDCONT=1,"IPV4V6","MY-SUBSCRIPTION-APN"
AT+CGDCONT=6,"IPV4V6","MY-SUBSCRIPTION-APN"

Some APN names require additional authentication also, please refer to the AT command: AT+CGAUTH in the AT commands guide for details on how to define auth details correctly.
Current auth configurations can be checked with AT command:
AT+CGAUTH?
Most often no auth details are needed for the profiles and they should be empty, profiles can be cleared by defining the profile number in question and zero in the second parameter:
AT+CGAUTH=1,0
AT+CGAUTH=6,0

If you have modified the APN information, username and passwords it is necessary to disconnect and reconnect to cellular network and packet data service to activate the new settings.
It can easily be done with AT+CFUN=0 command followed by AT+CFUN=1 to switch module operation mode (SIM card will also be re-initialized, so PIN code have to be given again if the PIN code check is activated).

The module will now try to establish and maintain the data connection automatically with the new settings.
If everything was configured correctly and the connection established successfully on the APN, the host system will have network access on the RNDIS network interface:

It can be tested e.g. by pinging a remote host over the RNDIS network interface:
ping -I usb0 8.8.8.8
PING 8.8.8.8 (8.8.8.8) from 192.168.225.46 usb0: 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=52 time=167 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=52 time=37.6 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=52 time=44.4 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=52 time=33.6 ms

--- 8.8.8.8 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 8ms
rtt min/avg/max/mdev = 33.600/70.635/166.972/55.753 ms

Tested on:
SIM7600E-H/SIM7600SA-H with firmware release LE11B12SIM7600M22.
SIM7600G-H with firmware release LE20B01SIM7600M22.