GPRS Configuration
GPRS (General Packet Radio Service) communication is the main data transmission channel for Rinho devices. It enables sending position reports, status updates, and alerts to tracking servers via 2G/3G/4G networks.
What is it used for?
| Use case | Description |
|---|---|
| 📡 Report transmission | Send GPS positions and events to server |
| 🔄 Redundancy | MAIN and BACK channels for high availability |
| 🌍 Roaming | Switch carriers when crossing borders |
| 🔧 FOTA | Remote firmware updates |
| 📊 Telemetry | Send CANBUS data, sensors, etc. |
Available Commands
Configuration of destination IP addresses (7 destinations)
→Telephone carrier selection (roaming)
→Forced socket disconnection
→Triggers for country change (MCC)
→IP Destination Architecture
The system supports 7 IP destinations organized in channels to ensure redundancy:
| Channel | Destinations | Function | Priority |
|---|---|---|---|
| 🟢 MAIN (cellular) | IP0, IP1 | Main channel over cellular network (alternates IP0↔IP1 on failure) | High |
| 🟣 MAIN (WiFi) | IP3 | Exclusive destination when reporting via WiFi; if not defined, WiFi also falls back to IP0/IP1 | High |
| 🟡 BACK | IP4, IP5, IP6 | Secondary simultaneous channel | Medium |
| 🔵 FOTA | IP2 | Reserved for OTA updates | System |
Automatic redundancy: Over the cellular network, if IP0 fails the device tries IP1 (binary fallback, no IP3). IP3 is a destination exclusive to the WiFi channel: when the device reports via WiFi it tries IP3 first and, if not defined, also falls back to IP0/IP1. The BACK channel can simultaneously send to another server for backup.
How does redundancy work?
- Active MAIN channel: Device attempts to connect to IP0
- If IP0 fails (cellular): Automatically tries IP1. IP3 is not part of this chain: it’s a separate destination, exclusive to the WiFi channel
- Parallel BACK channel: Can send copy to IP4/IP5/IP6 simultaneously
- Reconnection: When IP0 recovers, returns to main destination
Related Configuration
| Command | Function | Description |
|---|---|---|
| CXAPN | Access Point Name | Cellular carrier APN |
| CXIP | Connection mode | TCP/UDP, timeouts, reconnection |
| SIM | SIM selection | Dual SIM management |
See Also
- CEL Command — Cellular connection status
- WiFi Configuration — Alternative WiFi communication
- SIM Selection — Dual SIM management