RAK13101 WisBlock GSM/GPRS Module Datasheet
Overview
Description
WisBlock RAK13101 GSM/GPRS Module is a part of the WisBlock Wireless series that provides GSM/GPRS capability on the WisBlock platform by using Quectel MC20CE cellular module.
Features
- Quectel MC20CE module
- Supports GSM/GPRS/GNSS: 850/900/1800/1900 MHz
- Supports BeiDou/GPS/GLONASS/QZSS
- Built-in LNA
- IPEX connectors for the GSM and GNSS antenna
- Micro-USB debug and log output connector
- Nano SIM support
- 3.3 V Power supply
- Small size: 25 mm x 45 mm
Specifications
Overview
The RAK13101 module can be mounted on the IO slot of the WisBlock Base board. Figure 1 shows the mounting mechanism of the RAK13101 on a WisBlock Base module, such as a RAK5005-O.
Figure 1: RAK13101 mounting mechanism on a WisBlock Base moduleHardware
The hardware specification is categorized into five parts. It shows the chipset of the module and discusses the pinouts and its corresponding functions and diagrams. It also covers the electrical and mechanical parameters that include the tabular data of the functionalities and standard ratings of the RAK13101 WisBlock GSM/GPRS Module.
Chipset
| Vendor | Part number |
|---|---|
| Quectel | MC20CE |
Pin Definition
The RAK13101 WisBlock GSM/GPRS module comprises a standard WisBlock IO slot connector. The WisBlock connector allows the RAK13101 module to be mounted on a WisBlock baseboard with IO slot, such as RAK5005-O. The pin order of the connector and the pinout definition is shown in Figure 2.
Figure 1: RAK13101 Connector Pin Definition-
RAK13101 WisBlock IO slot connector utilizes the UART related pins, PWRKEY via WB_IO5, VBAT, 3V3, and GND.
-
VBAT is the battery voltage input with max voltage 4.2 V. During GPRS data and GSM dial mode, the peak current is 1170 mA and 769 mA, respectively, which exceeds the USB port supply current. That is why you must use a dedicated battery.
Electrical Characteristics
Absolute Maximum Ratings
| Parameter | Minimum | Maximum | Unit |
|---|---|---|---|
| VBAT | -0.3 | +4.2 | V |
| GNSS_VCC | -0.3 | +4.2 | V |
| Power supply peak current0 | 0 | 2 | A |
Power Supply Ratings
| Symbol | Description | Condition | Min. | Nom. | Max. | Unit |
|---|---|---|---|---|---|---|
| VBAT | Supply Voltage | Input voltage must within this range | 3.3 | 4.0 | 4.2 | V |
| GNSS_VCC | GNSS Part Supply voltage | Input voltage must within this range | 2.8 | 3.3 | 4.2 | V |
| Ipeak | Peak Current @ VBAT = 3.8 V | Idle | - | - | 110 | mA |
| Peak Current @ VBAT = 3.8 V | GSM Dial | - | - | 769 | mA | |
| Peak Current @ VBAT = 3.8 V | GPRS Data | - | - | 1170 | mA | |
| Ivbat | Average Supply Current | Power down mode | - | 20 | - | mA |
| Average Supply Current | Sleep mode @DRX = 5 | - | 1.2 | - | mA |
Mechanical Characteristics
Board Dimensions
Figure 3 shows the dimensions and the mechanical drawing of the RAK13101 module.
Figure 1: RAK13101 Mechanical DrawingWisConnector PCB Layout
Figure 1: WisConnector PCB Footprint and RecommendationsSchematic Diagram
Power Supply
The Quectel MC20CE module's main power supply comes from VBAT, which is a battery voltage connected to the WisBlock Base board. GNSS_VCC is the GNSS section supply voltage and is turned on or off via GNSS_VCC_EN, which is connected to MC20CE. The power supply of the GNSS part is controlled via the AT command AT+QGNSSC.
Figure 1: RAK13101 Power SupplyGSM and GNSS
J3 is GSM antenna connector and J2 is GNSS antenna connector.
Figure 1: RAK13101 GSM and GNSS Antenna CircuitVoltage Level Transfer
The GSM/GPRS module operates at 2.8 V, while the WisBlock Core is at 3.3 V. That is why a voltage level shifter is needed.
Figure 1: RAK13101 Voltage Level Shifter CircuitSIM Circuit
Figure 8 shows the schematic of RAK13101 module as a slot for standard SIM card.
Figure 1: RAK13101 GSM/GPRS Module SIM CircuitWisConnector
RAK13101 WisBlock IO slot connector utilizes UART related pins, PWRKEY via WB_IO5, VBAT, 3V3, and GND.
Figure 1: RAK13101 IO Slot ConnectorDebug Connector
Figure 10 shows the RAK13101 USB debugging circuit.
Figure 1: RAK13101 USB DebuggingLED/PWRKER Control Circuit
Figure 11 shows the RAK13101 module LED and PWRKEY controlled circuit.
Figure 1: RAK13101 Module LED PWRKEY Control Circuit
