Comparative Analysis of AT2000 Compatible GPS Trackers
The AT2000 protocol, typically operating on Port 5128, is an advanced binary data standard engineered for industrial-grade telematics. Unlike basic protocols, AT2000 supports multi-layered data packets including precise GNSS coordinates, detailed I/O status, and external sensor data (RS232/1-Wire). This guide provides the technical foundation for integrating devices like the Teltonika AT2000 and A-Telematics AT200 series into your fleet management platform.
1. Comparative Analysis of AT2000 Compatible GPS Trackers
Choosing the right hardware depends on your power requirements and the environmental conditions of the asset being tracked.
| Model | Connectivity | Power Input | IO Interface | Best For |
|---|---|---|---|---|
| Teltonika AT2000 | 2G Quad-Band | 6V – 30V DC | 1-Wire, DOUT | High-value asset recovery |
| A-Telematics AT200V3 | 4G LTE Cat 1 | 9V – 90V DC | RS232, 2xAIN, 2xDIN | Heavy truck fleet management |
| A-Telematics AT200S | 4G LTE Cat M1 | 10V – 36V DC | 1x DIN (Ignition) | Motorcycle & light vehicle tracking |
| Astra AT202 | Global LTE-M | 9V – 32V DC | CANBus, Bluetooth | EV Fleets & IoT Analytics |
2. Critical SMS Commands for Remote Device Setup
To initialize a device, you must send specific configuration strings via SMS. Most AT2000 protocol devices require two spaces ( ) at the start of the command if no security password is configured.
Network & Server Parameters
Replace DOMAIN_OR_IP with your server address and 5128 with the required port.
- Server Pointing:
setparam 2004:DOMAIN_OR_IP;2005:5128;2006:0 - APN Setup:
setparam 2001:APN_NAME;2002:USER;2003:PASS - Data Gathering (Moving):
setparam 1001:60;1003:60(Record every 60s) - Data Sending (Moving):
setparam 1002:60;1004:60(Send every 60s)
Status & Maintenance Commands
- Check Signal & Battery:
getstatus - Hard Reset:
cpureset - Clear Internal Flash:
format
3. Technical Wiring Diagram and Pinout Specifications
Proper electrical installation is vital for the stability of the AT2000 protocol. Improper grounding can lead to “data drifting” or device resets.
[PIN] | [COLOR] | [SIGNAL TYPE] | [DESCRIPTION]
------|--------------|----------------------|---------------------------
01 | RED | Power (+) | Connect to constant 12V/24V
02 | BLACK | Ground (-) | Connect to vehicle chassis
03 | YELLOW | Digital Input 1 | Ignition Sense (ACC)
04 | BLUE | Digital Input 2 | Alarm/Panic Button
05 | GREEN | Digital Output 1 | Relay Control (Immobilizer)
06 | WHITE | Analog Input 1 | Fuel Level / Voltage Sensor
07 | ORANGE | RS232 RX | RFID Reader / Camera In
08 | PURPLE | RS232 TX | Peripheral Command Out
09 | BROWN | 1-Wire Data | Dallas Temperature / iButton
4. Troubleshooting Common Connection Issues on Port 5128
If your device is not appearing online on Port 5128, verify the following technical checkpoints:
- Firewall Rules: Ensure that your server’s firewall (IPTables/UFW) is configured to allow incoming TCP and UDP traffic on Port 5128.
- APN Compatibility: Some M2M SIM cards require a Private APN. Ensure the device has received the
setparam 2001command successfully. - LED Indicators: A fast-blinking Status LED usually indicates searching for GSM signal, while a slow blink indicates a successful server connection.
- Voltage Sag: Ensure the power source provides at least 500mA peak current during GPRS transmission.
