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Astra Protocol Tracking Devices: Technical Reference
The Astra Telematics AT Series is a premier line of fleet management hardware known for its robust data efficiency and high-reliability tracking. Utilizing the proprietary Astra Protocol (typically configured for port 5103), devices like the AT-200, AT-210, and AT-240 provide a seamless bridge between vehicle hardware and cloud-based telematics platforms.
Designed for diverse fleet requirements, from basic location tracking to advanced CANbus diagnostics, these devices offer a versatile platform for modern logistics. This technical reference provides a deep dive into the hardware differences, precise wiring specifications, and essential SMS configuration commands required for professional deployment.
1. Device Comparison Table
Astra Telematics AT series devices share a common protocol but differ in hardware capabilities such as battery capacity and CANBus support.
| Model | Protocol Mode | CANBus | Battery | Primary Application |
|---|---|---|---|---|
| AT-200 | Protocol K ($PROT,6) | No | 900mAh | Standard vehicle tracking |
| AT-210 | Protocol K ($PROT,6) | No | 900mAh | Enhanced tracking with external GNSS option |
| AT-240 | Protocol V ($PROT,14) | Yes (FMS/OBD) | 510mAh | Advanced fleet management & CAN data |
2. Technical Wiring Diagrams
Basic Power & Ignition (AT-200 / AT-210 / AT-240)
• RED: Permanent +12V / +24V (Connect to Battery with 1A Fuse)
• BLACK: Ground (GND)
• WHITE: Ignition Sense (Digital Input 1 – Connect to switched ignition line)
Advanced IO Connections (AT-200/210 16-way Connector)
- Pin 1-2: Power/GND
- Pin 3: Ignition (White)
- Pin 9: 1-Wire Data (For iButton/Driver ID)
- Pin 11: Digital Input 2
3. SMS Configuration Commands
These commands should be sent to the device SIM phone number. Commands are case-sensitive and must start with the $ symbol.
A. Server & Network Setup
$APN,internet.apn,user,password
$MODE,TCP
B. Protocol Configuration
Select the correct protocol version based on your tracking platform requirements:
$PROT,14 (Advanced Protocol V – required for AT-240 CANBus data)
C. System Diagnostics
Send this command to receive a human-readable status report including GPS fix, battery level, and GSM signal.
