Expansion module 4G + 3G + 2G (WBC-4G v.2)
Description
WBC-4G v.2 is suitable for Wiren Board 6.7-6.9 and 7.x, the difference from v.1 is an increased cutout at the bottom.
| Parameter | Value |
|---|---|
| Operating frequency ranges |
LTE-FDD B1, B3, B5, B7, B8, B20 LTE-TDD B38, B40 UMTS/HSPA 900/2100 MHz (B1, B8) GSM/GPRS/EDGE 900/1800 MHz |
| Data transfer rate |
FDD-LTE Cat4 - up to 150 Mbps (download), up to 50 Mbps (upload) TDD-LTE Cat4 - up to 130 Mbps (download), up to 35 Mbps (upload). HSPA+ - up to 42 Mbps (download), up to 5.76 Mbps (upload) WCDMA - up to 384 kbit/s (downloading), up to 384 kbit/s (uploading) EDGE - up to 236.8 kbit/s (download). GPRS - up to 85.6 kbit/s (download), up to 85.6 kbit/s (upload). |
| Sending SMS messages | Supported |
| Voice calls | Not supported |
| SIM cards | 2 pieces, nano-SIM |
| SIM card modes | Alternating |
| Antenna connector | SMA |
| Power supply voltage | 5 V |
| Power consumption |
|
Module Installation
When ordering modules bundled with the Wiren Board controller, we install them in production - you only need to configure the modules in web interface of the controller.
If you bought the modules separately, install them yourself:
- Disassemble the controller case.
- Insert the module, observing the polarity: the protrusion on it must fit into the groove on the controller board.
- Insert the SIM card.
- Put the case back together.
- Screw the external antenna onto the SMA socket.
When mounting in a metallic shield for reliable radio communication, place the antenna outside.
Configuration
After physically connecting the modem, it should be added to the controller configuration:
- In the web interface, go to the Settings → Configs → Hardware Modules Configuration section, select the Modem slot.
- In the Module type drop-down list, select the type of the installed module.
- Click the Save button. The controller will enable the ports required for the modem to work.
To remove the module, select the type None.
After configuring, turn on the modem using the command wb-gsm on and set up the connection to the mobile operator.
Information
Обмен данными с модулем идет через последовательные порты /dev/ttyGSM и /dev/ttyUSBx (обычно это /dev/ttyUSB0 и /dev/ttyUSB1).
| Value | Parameter | Description |
|---|---|---|
| Auto-bauding | Baud rate | Speed, bit/s. Set to 115200 in the connection program settings.
After connecting, send |
| 8 | Data bits | Number of data bits |
| None | Parity | Parity bit |
| 1 | Stop bits | Number of stop bits |
| Off | Hardware flow control | Hardware flow control |
| Off | Software flow control | Software flow control |
При необходимости параметры соединения можно изменить через AT команды.
Configuring Internet Connection
Refer to the instruction for setting up the internet connection via a 4G modem in the article GSM/GPRS.
Note that the 4G network does not operate in all regions.
To check the current setting, use AT+CNMP?.
Switching modem to automatic network selection mode is performed with the command: AT+CNMP=2.
Documentation
AT commands:
- Файл:A7600 Series AT Command Manual V1.02.pdf for chip versions up to B05;
- Файл:A76XX Series AT Command Manual V1.07.pdf for versions B05 and newer.
To find out the version number of the chip, you can use the AT command at+cgmr, which returns a string with the number, where characters 6 to 8 will indicate the chip version. See How to send an AT command for more information.
For example, in the following example, the B05 chip version is:
at+cgmr
+CGMR: A39C4B05A7600M7
SIMCom A76xxE-H Modem Flashing Guide
Known issues
There are no known issues.
Device revisions
The batch number can be found on a sticker on the side of the case or on the PCB.
| Revision | Batch | Release date | Differences from previous revision |
|---|---|---|---|
| 2.1 | v2.1A/1, v2.1A, v2.1B, v2.1D/1, v2.1D/2, v2.1G, v2.1G/1 - ... | 11.2022 - ... |
|
| 1.10 | v1.10A, v1.10B, v1.10C, v1.10C/2 | 04.2022 - 12.2022 |
|
| 1.9 | v1.9A, v1.9B, v1.9B/2 | 12.2021 - 06.2022 |
|
Images and device schematics
Front side of the module WBC-4G v.2 for WB6 and WB7
Reverse side of the module WBC-4G v.2 for WB6 and WB7
