RM500Q-GL 5G HAT

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M.2 TO 4G/5G HAT
RM500U-CN 5G HAT
With RM500Q-GL/RM500Q-AE/RM502Q-AE
Sim8202g-m2-5g-hat-b-6.png
With 5G Module and Case
Rm500u-cn-5g-hat-with-case-2.jpg
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Overview

Features

  • Integrates extensive network protocols, with multi drivers and software support, compatible with different OS including Windows / Linux / Android.
  • USB 3.1 port (USB 2.0 compatible) for connecting to PC, Raspberry Pi, or Jetson Nano host board to enable high-speed 5G communication.
  • Standard M.2 B KEY slot, compatible with different 5G modules: RM500U-CN / RM500Q-GL / RM500Q-AE / RM502Q-AE series.
  • Onboard UART, PWR, and RST control pin, built-in voltage level translator, enabled via DIP switch, for use with hosts like Raspberry Pi or Arduino.
  • Onboard USB-C connector, enabled via a switch, for connecting the standalone power supply for the module, allows more loads, a stable and flexible power supply.
  • Onboard power supply on/off switch, reset button, and LED indicator, easy to turn on/off the module or monitor the operating status.
  • 2 x SIM card slot, dual card single standby, switchable via AT command. (Some 4G/5G modules do not support dual sim cards, depending on the actual supporting modules.)
  • High-efficiency power supply circuit, up to 3A output current.

Version Options

This product is available with an optional 5G module and also with the optional case.
M.2 TO 4G-5G HAT version01.png
M.2 TO 4G-5G HAT version02.png


Selection Guide

5G Sub-6 RM500U-CN RM500Q-GL RM500Q-AE RM502Q-AE
RM500U-CN-5G-HAT-details-17-1.jpg RM500U-CN-5G-HAT-details-17-3.jpg RM500U-CN-5G-HAT-details-17-5.jpg RM500U-CN-5G-HAT-details-17-4.jpg
Region / Provider China Global (except US) Global (except China) Global (except China)
Operating Temperature -30 °C ~ +75 °C -30 °C ~ +70 °C
Extension Temperature -40 °C ~ +85 °C
Dimensions 30.0 × 52.0 × 2.3 (mm)
Weight 8.9 (g) 8.7 (g)
Power Supply 3.3~4.4 V, typical 3.7 V 3.135~4.4 V, typical 3.7 V
Power Consumption 90 μA @ shutdown

3.7 mA @ hibernate TBD @ USB 2.0, idle TBD @ USB 3.0, idle

70 μA @ shutdown

4.0 mA @ hibernate 32 mA @ USB 2.0, idle 54 mA @ USB 3.0, idle

80 μA @ shutdown

4.2 mA @ hibernate 39 mA @ USB 2.0, idle 54.5 mA @ USB 3.0, idle

195μA @ shut down

4.7mA @ hibernate 41mA @ USB 2.0, idle 60mA @ USB 3.0, idle

Frequency Band
5G 5G NR NSA n41, n78, n79 n41, n77, n78, n79 n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n48, n66, n71, n77, n78, n79 n1, n2, n3, n5, n7, n8, n12, n13, n14, n18, n20, n25, n26, n28, n29, n30, n38, n40, n41, n48, n66, n70, n71, n76, n77, n78, n79
5G NR SA n1, n28, n41, n77, n78, n79 n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n48, n66, n71, n77, n78, n79 n1, n2, n3, n5, n7, n8, n12, n13, n14, n18, n20, n25, n26, n28, n29, n30, n38, n40, n41, n48, n66, n70, n71, n76, n77, n78, n79
LTE LTE-FDD B1, B2, B3, B5, B7, B8, B20, B28 B1, B2, B3, B4, B5, B7, B8, B12(B17), B13, B14, B18, B19, B20, B25, B26, B28, B29, B30, B32, B66, B71
LTE-TDD B34, B38, B39, B40, B41 B34, B38, B39, B40, B41, B42, B43, B48
LAA - B46
UMTS WCDMA B1, B2, B5, B8 B1, B2, B3, B4, B5, B6, B8, B19
GNSS - GPS / GLONASS / BeiDou (Compass) / Galileo
Data Rate
5G SA Sub-6 downlink 2 Gbps;
uplink 1 Gbps 		downlink 2.1 Gbps;
uplink 900 Mbps 		downlink 2.1 Gbps;
uplink 450 Mbps 		downlink 4.2 Gbps;
uplink 450 Mbps
5G NSA Sub-6 downlink 2.2 Gbps;
uplink 575 Mbps 		downlink 2.5 Gbps;
uplink 600/650 Mbps 		downlink 2.5 Gbps;
uplink 650 Mbps 		downlink 5 Gbps;
uplink 650 Mbps
LTE downlink 600 Mbps;
uplink 150 Mbps 		downlink 1.0 Gbps;
uplink 200 Mbps 		downlink 1.0 Gbps;
uplink 200 Mbps 		downlink 2 Gbps;
uplink 200 Mbps
UMTS downlink 42.2 Mbps;
uplink 11 Mbps 		downlink 42 Mbps;
uplink 5.76 Mbps
* means developing/planning/processing
Quectel_RM500Q-GL_5G_Specification ：[Datasheets 1]
Quectel_RM500Q-AE_5G_Specification ：[Datasheets 2]
Quectel_RM502Q-AE_5G_Specification ：[Datasheets 3]

What's On Board

SIM8202G-M2-5G-HAT-B-details-intro.jpg

Number Name Description
① Raspberry Pi GPIO Header Easily connect to Raspberry Pi
② Switch Enable the corresponding pin
③ M.2 Interface Compatible with RM500U-CN / RM500Q-CN / RM500Q-GL /RM50XQ-AE and other series of 5G modules
④ SIM Card Holder Onboard two SIM card slots, dual card single standby. The default SIM1 card slot works, SIM2 is on the back, requires module support, and must be switched through AT commands
⑤ USB 3.1 Connector Backward compatible with USB 2.0, can be used to connect to PC/Raspberry Pi/Jetson Nano, etc.
⑥ USB Type-C Connector 5V 3A input; stable and flexible power supply
⑦ Audio Port SIM82XX series support audio function, RM50XX series do not support this audio function
⑧ Antenna Connector Onboard four-way antenna, strong signal
⑨ Reset Switch One-key reset
⑩ Power Switch To facilitate the power supply mode of the control module:

——If set to USB, the module will provide power through the "⑤.USB3.1 interface";
——If set to EXT PWR, the module will provide power through the "⑥.USB Type-C interface" external power supply

⑪ Cooling Fan Cool down the Raspberry Pi and 5G module at the same time
⑫ Indicator Check the module running status anytime, anywhere

SIM8202G-M2-5G-HAT-B-details-intro02.jpg

Number Name Description
⑬ Cooling Fan Simultaneously cooling Raspberry Pi and 5G modules
⑭ SIM Card Slot 2 Switchable via AT command (module is required)
⑮ Module Setting Switch Switch A to ON for SIM7600X / A7906X / IM7906X / SIM7912X series 4G M.2 module;
Switch B to ON, for SIM8202X / SIM8200EA / SIM8262X series 5G M.2 module;
Switch C to ON, for RM50X / RM520N-GL / EM06X series 5G / LTE-A M.2 module
⑯ USB Interface Pad USB 2.0 interface pad
⑰ NAU8810X Audio Chip For SIMN7600X / SIM8XXX series module, does support RM5XX and EM06XX series module
⑱ Fan Header 5V power supply for cooling fan

Pinout Definition

After connecting to Raspberry Pi, these pins (TX, RX, D4 and D6) can be connected or not through the DIP switch:
M.2-TO-4G-5G-HAT-Pin-defined.jpg

4G/5G modules function testing

Category 4G/5G Module Network Communication GNSS Positioning Voice calls through
Earphone Port		 Dual SIMs UART Interface External Power Supply?
5G SIM8202G-M2 5G/4G/3G Support Support Support Support Optional, but recommended
5G SIM8200EA-M2 5G/4G/3G Support Support Support Support Optional, but recommended
5G RM500U-CN 5G/4G/3G NOT Support NOT Support Support Support Recommended
5G RM500Q-GL 5G/4G/3G Support NOT Support Support NOT Support Recommended
5G RM500Q-AE 5G/4G/3G Support NOT Support NOT Support NOT Support Recommended
5G RM502Q-AE 5G/4G/3G Support NOT Support NOT Support NOT Support Recommended
LTE-A EM06-E LTE-A/4G/3G NOT Support NOT Support NOT Support NOT Support Optional
LTE-A A7906E LTE-A/4G/3G NOT Support NOT Support NOT Support NOT Support Optional
4G SIM7600G-H-M2 4G/3G/2G Support Support NOT Support Support Optional

4G/5G Module Compatibility

If you need to use the M.2 TO 4G/5G HAT for other 4G/5G modules, you can refer to the M.2 connection diagram below, check whether there is any pin conflict, and then connect to test:
M.2-Compatibility.jpg

Working With Windows

Hardware Preparation

  • In addition to the items in the package,
    5G-HAT-Pack.jpg
  • you need to prepare the following items:
* A 5G SIM card (no downtime and 5G enabled);
* A computer with a Windows operating system （Such as Windows 10）
* A headphone cable with a microphone (optional);

Hardware Connection

Connect the 5G HAT with a usb3.0 cable, and connect an external 5V power supply to the Type-C power supply port of the 5G HAT, as shown in the figure:
M.2-TO-4G-5G-HAT-TO-WIN10.jpg

Install drivers

  • After connecting the 5G HAT to the computer through a double-ended usb3.0 data cable, there will be a series of devices without drivers installed on other devices:

RM500U-driver-manager.png

  • Download the driver to your computer and unzip the compressed package.
  • Enter the RM50X_Driver directory.
  • Click setup.exe to install the driver. After the installation is complete, the device manager will generate the following devices:

RM500U-driver-finish.png

RM50XQ-Driver ：[Software 1]

Common AT Commands

EM25X, EM06E and RM50X series 4G/5G module support AT command control, some basic AT commands are shown in the table below:

RM500U AT LOG.png
Command Description Return Value
AT AT test command OK
ATE ATE1 sets echo
ATE0 turns off echo		 OK
AT+CGMI Query module manufacture OK
AT+CGMM Query module model OK
AT+CGSN Query product serial number OK
AT+CSUB Query module version and chip OK
AT+CGMR Query the firmware version serial number OK
AT+IPR? Set the module hardware serial port baud rate +IPREX:
OK
AT+CFUN=1,1 Reset module OK
AT+QUIMSLOT? Query SIM card selection:
Return 1, select SIM card 1;
Return 2, select SIM card 2		 +QUIMSLOT: 1/2
OK
AT+CPIN? Query the status of the SIM card and return READY, indicating that the SIM card can be recognized normally +CPIN: READY
AT+COPS? Query the current operator, the operator information will be returned after normal networking +COPS:
OK
AT+C5GREG? Query 5G network registration status +C5GREG:
OK
AT+QENG="servingcell" Query UE system information
AT+CNMP Network mode selection command:
"mode_pref"：Automatic
"nr5g_band" ： 5G NR
"lte_band"：LTE only
"gw_band"：WCDMA only
... ....		 OK
Quectel_RG50xQ_RM5xxQ_Series_AT_Commands_Manual ：[Datasheets 4]
SSCom Serial Assistant Tool: [Software 2]

SIM Card Selection

Dual SIM Card Switching

The 5G HAT has two SIM card slots onboard, a dual SIM card, and single standby, which can be switched and enabled by AT command.

  • SIM card 1 is selected by default, You can use the following command to query and confirm:
AT+QUIMSLOT?
  • To switch SIM card 2, please use the following command:
AT+QUIMSLOT=2
  • Switch back to SIM card 1, please use the following command:
AT+QUIMSLOT=1
  • Check whether the corresponding card slot recognizes the SIM card:
AT+CPIN?
RM500U-CN and RM500Q-GL support Dual SIMs, but RM500Q-AE and RM502Q-AE modules do not support dual SIM cards.


MBIM Dial-up Internet Access

  • Download and install the driver.
  • Open the RM50X AT port and send the following commands to dial up the Internet:
AT+QENG="servingcell"
AT+QCFG="usbnet",2
AT+CFUN=1,1
  • After dialing and restarting, the mobile network card appears on the computer network connection interface, and the dialing is successful.
RM500U-MIBM.png
RM50XQ-Driver ：[Software 1]

GPS Positioning

Connect the passive GPS antenna to the GNSS antenna interface of the module(RM500Q-GL is ANT2;RM500Q-AE and RM502Q-AE is ANT3), and place the antenna outdoors facing the sky.Then send the AT command to turn on the GPS:

AT+QGPS=1        //Turn on GPS positioning
AT+QGPSLOC=0     //Get GPS positioning

RM50XQ-GNSS-02.png
Now open the NEMA port, you can get GPS data:
RM50XQ-GNSS-02.png
Finally, turn off the GPS, you can use the AT command:

AT+QGPS=0        //Turn off GPS positioning
Quectel_RG50xQ_RM5xxQ_Series_GNSS_Application_Note ：[Datasheets 5]

Working with Raspberry Pi

Hardware Connection

Connect the 5G HAT with a double-ended usb3.0 data cable, and connect an external 5V power supply to the Type-C power supply port of the 5G HAT, as shown in the figure:

Raspberry Pi Pi 4B Pi 3B/3B+ CM4-IO-BASE
USB adapter USB3.0 adapter USB2.0 adapter USB3.0 adapter
Connection M.2-To-4G-5G-HAT-CM4.jpg M.2-To-4G-5G-HAT-Pi3B.jpg M.2-To-4G-5G-HAT-CM4.jpg
Note
It is recommended to connect an external 5V power supply at the arrow.

If it is used for PI4B, there is a matching case, and the installation diagram is as follows：

  • PI4-CASE-4G-5G-M.2-01.jpg
  • PI4-CASE-4G-5G-M.2-02.JPG
  • PI4-CASE-4G-5G-M.2-03.JPG
  • PI4-CASE-4G-5G-M.2-04.JPG
  • PI4-CASE-4G-5G-M.2-05.JPG
  • PI4-CASE-4G-5G-M.2-06.JPG

The use of Raspberry Pi OS

This configuration is only needed for the first time.

Please download the newest Raspberry Pi OS, All the settings are based on Kernel 5.5, if you use the old version, please update first. Make sure your Kernel version is up-to-date, or else you may face issues with the driver.

5G ECM Mode Dial-up

Step 1. Uninstall Modem Manager and Network Manager

Open a terminal and run the following commands to uninstall Modem Manager and Network Manager: 

sudo apt purge modemmanager -y
sudo apt purge network-manager -y

Step 2. Test 5G Module

  • Driver Testing:
    Make sure the option USB-serial driver is properly loaded to the module interfaces. Check it with the usb-devices command.
pi@raspberrypi:~ $ usb-devices
T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  3 Spd=5000 MxCh= 0
D:  Ver= 3.20 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 9 #Cfgs=  1
P:  Vendor=2c7c ProdID=0800 Rev=04.14
S:  Manufacturer=Quectel
S:  Product=RM502Q-AE
S:  SerialNumber=377628d2
C:  #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=896mA
I:  If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
I:  If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
  • Testing with AT command:
sudo apt-get install minicom
sudo minicom -D /dev/ttyUSB2

Welcome to minicom 2.7.1

OPTIONS: I18n 
Compiled on Aug 13 2017, 15:25:34.
Port /dev/ttyUSB2

Press CTRL-A Z for help on special keys

AT
OK

Step 3. Networking Setup with AT Commands

AT+QCFG="usbnet",1
AT+CGDCONT=1,"IPV4V6","YOUR_APN" 
AT+CFUN=1,1

Wait for the modem to boot again. It may take 30 seconds. Once the modem reboots, the minicom will be activated again.

After the reboot, open a new Linux terminal and check for usbX in the network interface using ifconfig or ipaddr commands.

RM500U RNDIS DIAL.png

  • After rebooting the module, the NET indicator is on, and you can use the following commands to check the network. (Optional)
AT+QENG="servingcell"
  • Use the following commands to get the IP and set up the DNS:
sudo dhclient -v usb0
sudo apt-get install udhcpc
sudo udhcpc -i usb0
sudo route add -net 0.0.0.0 usb0

Step 4. Test 5G Network

After dialing, the Raspberry Pi can see usb0 get the ip by the following command, enter the command ifconfig usb0 or ifconfig.

  • Now check the assigned IP address and test the connection.
ifconfig usb0

pi@raspberrypi:~ $ ifconfig usb0
usb0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.225.60  netmask 255.255.255.0  broadcast 192.168.225.255
        inet6 fe80::8543:f6a0:e678:2e20  prefixlen 64  scopeid 0x20
        ether 4a:aa:f8:62:36:bb  txqueuelen 1000  (Ethernet)
        RX packets 73  bytes 5047 (4.9 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 100  bytes 15116 (14.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

RM500U-net-card.png 

 ping waveshare.com -I usb0 

pi@raspberrypi:~ $ ping waveshare.com -I usb0
PING waveshare.com (104.26.11.134) from 192.168.10.27 usb0: 56(84) bytes of data.
64 bytes from 104.26.11.134 (104.26.11.134): icmp_seq=1 ttl=52 time=87 ms
64 bytes from 104.26.11.134 (104.26.11.134): icmp_seq=2 ttl=52 time=82 ms
64 bytes from 104.26.11.134 (104.26.11.134): icmp_seq=3 ttl=52 time=92 ms
64 bytes from 104.26.11.134 (104.26.11.134): icmp_seq=4 ttl=52 time=73 ms
64 bytes from 104.26.11.134 (104.26.11.134): icmp_seq=5 ttl=52 time=75 ms

5G Network Test

In the Linux system, you can install speedtest_cli to test: 

## Raspberry Pi OS
sudo apt install speedtest-cli
speedtest      # or use speedtest_cli

or 

## OpenWRT
opkg update   
opkg install python3
opkg install python3-pip
pip install speedtest_cli 
speedtest      # or use speedtest_cli

Troubleshooting

Check if the module detects SIM: 

AT+CPIN? # Should return READY

Check if the module is registered to the network: 

AT+CEREG? # Should return 0,1 or 0,5

Check if the APN is correct and has an IP: AT+CGCONTRDP? 

AT+CGCONTRDP # Should return APN details and IP address.

5G Network Speed Test

In the speed measurement part, because the Raspberry Pi comes with a Gigabit Ethernet port, and there are few USB network cards above Gigabit, we use the SpeedTest For Python tool to perform speed measurement by the commands. Connect to the terminal of OpenWrt and enter the commands one by one to measure the speed: 

## OpenWRT
opkg update   
opkg install python3
opkg install python3-pip
pip install speedtest_cli 
speedtest      # or use speedtest_cli
When the SIM8202G module is registered to the 5G network and has a good signal, it connects to OpenWrt's hotspot (5.8G) through the cell phone, and the cell phone can measure the speed up to about 100 megabytes, the actual speed measurement may be different, for reference only.

Raspberry Pi minicom Serial Port Debugging

1. Insert the module into the Raspberry Pi and set the S_TX and S_RX of the dipswitch to ON.
5G Network Speed Test09.png
2. Install minicom, minicom is the serial port debugging tool for Linux.

Use minicom to open ttyUSB2:
 sudo minicom -D /dev/ttyUSB2

Send to enable the UART serial port: 

AT+CCUART=1

3. Open ttyS0 via minicom - ttyS0 is the serial port of the Raspberry Pi 3B/3B+/4B, and the default baud rate is 115200. 

sudo minicom -D /dev/ttyS0

4. Raspberry Pi 2B/zero, the user serial device number is ttyAMA0; you can use the following command line to confirm that serial0 is the selected serial device number, as follows: 

ls -l /dev/serial*

RM520n-gl faq90.png

Working with Jetson Nano

Hardware Connection

Connect the 5G HAT with a double-ended usb3.0 data cable, and connect an external 5V power supply to the Type-C power supply port of the 5G HAT, as shown in the figure:
RM500U-jetson.png

Load USB Device Descriptor

In order to identify the module, the module's VID and PID information needs to be added to the file [kernel].

  • View VID and PID of RM500U.
lsusb

RM500Q GL VID PID.png
Added VID sum PID.

sudo apt-get install unzip
wget https://files.waveshare.com/upload/0/09/RM5XXQ_For_Jetson_nano.zip
unzip RM5XXQ_For_Jetson_nano.zip
sudo chmod 777 -R RM5XXQ_For_Jetson_nano
cd RM5XXQ_For_Jetson_nano
sudo ./install.sh
sudo reboot
Please do not delete or modify the four directory files of option directory, default.script, and install.sh, otherwise it will affect the loading of device descriptors!

After successfully adding the PID and restarting Jetson nano, enter the following command in the command line interface to display five device symbols USB0-USB4. 

ls /dev/ttyUSB*

Jetson-nano-vid.png

RNDIS

  • Enable minicom.
sudo apt-get install minicom
sudo minicom -D /dev/ttyUSB2
  • Send the following command ECM in minicom.
AT+CPIN?
AT+QCFG="usbnet",3
AT+CFUN=1,1

Rndis-dial.png
After the module restarts, and the NET light is on, use the following command to check the network status (optional). 

AT+QENG="servingcell"

Get the IP and set the DNS with the following commands: 

sudo dhclient -v usb1
sudo apt-get install udhcpc
sudo udhcpc -i usb1
sudo route add -net 0.0.0.0 usb1

After dialing, you can see that usb1 gets the IP through the following command: 

ip route

Ip-route.png
Test usb1 networking status.

 ping -I usb1 www.baidu.com

Ip-route2.png

Resources

Software

  1. ↑ 1.0 1.1 RM50XQ-Driver
  2. ↑ RM500U Serial debugging assistant

Assembly drawing

Datasheets

  1. ↑ Quectel_RM500Q-GL_5G_Specification_V1.3
  2. ↑ Quectel_RM500Q-AE_5G_Specification_V1.1
  3. ↑ Quectel_RM502Q-AE_5G_Specification_V1.2
  4. ↑ Quectel_RG50xQ_RM5xxQ_Series_AT_Commands_Manual_V1.2
  5. ↑ Quectel_RG50xQ_RM5xxQ_Series_GNSS_Application_Note_V1.1


FAQ

Question:What should I do if the NET light does not light up and I am not registered to the network?

 Answer:
  • Please check whether the SIM card and the antenna are connected, and note that four antennas must be connected.
  • Please check the hardware connection and use AT Log to check the network connection.
AT+CPIN?
AT+COPS?
AT+QCSQ
AT+QENG="servingcell"

RM.png

{{{5}}}


Question:Can the module be connected to another board? Can the board be connected to other modules with an M2 interface?

 Answer:
RM520N-GL91.png

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Question:What platforms are the RM50X module based on?

 Answer:

RM500U-CN: based on Zhanrui
RM500Q-GL: based on the Qualcomm platform, supports GNSS positioning, mainly for China
RM500q-AE/RM502Q-AE: based on the Qualcomm platform, supports GNSS positioning, mainly for countries except for China.

{{{5}}}


Question:After receiving the Raspberry Pi, it keeps restarting, what is the reason?

 Answer:
The 5G module requires a lot of power, especially at the moment of network access; the power supply capacity of the Raspberry Pi is limited, and the 5V (3A) power supply can be connected to the onboard TYPE-C interface.

{{{5}}}


Question:It cannot connect to the network after rebooting the Raspberry Pi?

 Answer:
When using the external power supply, RM500U does not reboot after rebooting the Raspberry Pi, you can use the commands to restart RM500U.

{{{5}}}


Question:What dial-up types of RM500X?

 Answer:
As shown below: 
AT+QCFG="usbnet",0 driver type is NDIS(QMI));
AT+QCFG="usbnet",1 The driver type is ECM;
AT+QCFG="usbnet",2 The driver type is MBIM; (RM5XXQ support)
AT+QCFG="usbnet",3 The driver type is RNDIS
AT+QCFG="usbnet",5 The driver type is NCM;

{{{5}}}


Question:The module has been powered on, why does the input command not respond?

 Answer:
Use the following command to turn on the echo, and press Enter after entering: (Blind typing is required here)
ATE1

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Question:How to check the frequency band of the operator?

 Answer:
It can be inquired at the following website:

https://www.frequencycheck.com

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Question:How to confirm whether the Raspberry Pi hardware serial port is ttyS0 or ttyAMA0?

 Answer:

Raspberry Pi 2B/zero, with user serial device number ttyAMA0; 

ls -l /dev/serial*

You can confirm that serial0 is the selected serial device number with the following command line, as follows:
RM520n-gl faq90.png

{{{5}}}


Question:Why does the USB power supply fail to power off when the computer is used, but the power goes off when the Raspberry Pi is used, and the NET light does not light up for a while?

 Answer:
The USB power supply capability of the Raspberry Pi is worse than that of the computer. It needs to be connected to an external power supply. Please set the switch to EXT PWR, and connect the HAT interface to a 5V 3A power supply:

RM500U-CN 5G HAT.png

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Support



Technical Support

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