General information
BMS GSM is an extension module that can be inserted to the BMS Mini, BMS Mini S, BMS Main 3, BMS Main X or BMS Main 3X controller. It allows a BMS controller to send battery data to a remote server over a cellular network.
Figure below shows the overall architecture of a battery system that is controlled wirelessly by an upper-level system.
Specifications
| Parameter | Value |
| Supply voltage, V | 5.0 ± 0.5 |
| Current consumption in the idle state, mA, max | 80 |
| Current consumption in the active state, mA, avg | 500 |
| Supported network types | GSM/GPRS/EDGE, NB-IoT |
| Dimensions (length × width × height), mm | 61 × 54 × 15 |
| Weight, g | 23 ± 2 |
| Operating conditions | |
| Operating temperature range, ° С | -40 to +85 |
| Degree of protection from external influences | IP00 |
Installation
The BMS GSM must be inserted into the corresponding header of the BMS controller. The device must be fixed to the BMS controller by 11mm M3 standoffs and M3 screws.
Here is the example of header for additional devices on BMS Main X:
Before configuring the device, a SIM card of the cellular operator must be inserted into the holder on the device board.
Configuration
Configuring the BMS GSM must be done according to the BMS controller’s configuration manual, see Battery management systems.
Typically, the connection settings located in the “Connectivity -> GSM” section of the BMS controller.