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EElink - TK319‑H Protocol

This page describes the public protocol context for using the EElink TK319‑H tracker with Plaspy. It focuses on how the device communicates with Plaspy, what connection settings are used publicly, and what to check during integration and rollout. The intent is to provide useful, non-sensitive protocol guidance for technical teams and integrators.

Plaspy uses shared connection settings across supported devices and automatically detects the tracker protocol when the device reports to the Plaspy endpoint. Exact device behavior can vary by firmware version, hardware revision, and manufacturer implementation, so this page covers general, publicly available protocol context rather than firmware internals or private parser logic.

Protocol Overview​

The communication protocol used by the TK319‑H provides the rules and message patterns the tracker uses to report location, status, and alarms to a backend platform. For the TK319‑H this commonly uses MoveLink / EELINK protocol variants to relay GPS/LBS position, ACC/ignition state, motion and safety alarms, and telemetry to fleet systems such as Plaspy.

  • Enables periodic and event driven reporting of location and telemetry to a backend platform.
  • Carries status signals such as ACC/ignition, external power, battery level, and alarm events for Plaspy to surface.
  • Allows remote workflows by relaying identifiable device messages that Plaspy maps to a vehicle or asset record.
  • Supports fallback location methods such as base station LBS when GPS is not available so Plaspy retains continuity.
  • Integrates telemetry from optional interfaces like relay control and temperature sensors for asset monitoring.

How Plaspy Detects the Protocol​

Plaspy receives device traffic at a shared public endpoint and port and automatically identifies the incoming tracker protocol when a properly configured device reports. In most cases you do not need to select a protocol inside Plaspy if the tracker is configured to send to the Plaspy endpoint and uses a supported protocol variant.

  • Plaspy’s public server domain is d.plaspy.com and the public server IP is 54.85.159.138.
  • Plaspy listens on port 8888 for all supported trackers and uses the same port for every device.
  • Devices may be configured to send their reports to d.plaspy.com or directly to 54.85.159.138 depending on deployment preference.
  • Plaspy automatically detects the tracker protocol when traffic is received on the shared endpoint.
  • Typical setup only requires configuring the device with the correct Plaspy host and transport settings and verifying connectivity.

Transport and Connection Context​

Connection settings are a key part of successful device reporting. The TK319‑H supports cellular uplink over GSM/WCDMA and can be configured to use either UDP or TCP transport to reach the Plaspy endpoint on the shared port.

  • The device may be configured to use UDP or TCP targeting port 8888 depending on device configuration and network requirements.
  • Devices can be pointed to the Plaspy domain d.plaspy.com or the direct IP 54.85.159.138 when configuring the reporting server.
  • Plaspy uses the same port 8888 for all devices which simplifies device provisioning and firewall rules.
  • Choose UDP for lower overhead and simpler NAT traversal in some networks, or TCP when reliable delivery is preferred according to your network and device capabilities.
  • Confirm transport and APN settings on the device match your carrier plan and firewall rules to ensure the tracker can reach Plaspy.

Protocol Compatibility Notes​

  • Firmware revisions can change which optional messages or fields the tracker sends; always verify the installed firmware version with the device vendor.
  • Hardware revisions and regional models may include different GNSS, cellular band support, or I/O options that affect available telemetry.
  • Manufacturer protocol flavors such as MoveLink / EELINK may have minor variations; Plaspy’s automatic detection covers common variants but confirm exact message behavior for advanced features.
  • Transport selection (UDP vs TCP) can influence message delivery semantics and should be tested in your environment.
  • Optional peripherals like relays or temperature sensors require configuration on the device and validation that Plaspy is receiving the related telemetry.
  • Validate compatibility and operational details against the manufacturer documentation before mass deployment.

Why Protocol Understanding Matters​

Understanding how the TK319‑H communicates helps reduce integration friction, speeds troubleshooting, and improves long term reliability when the tracker is used with Plaspy. Knowing which signals the tracker sends and how it connects to Plaspy makes it easier to validate installations and tune alerting and workflows.

  • Ensures correct server, transport, and APN settings are configured so the device can reach d.plaspy.com or 54.85.159.138 on port 8888.
  • Helps diagnose connectivity issues by narrowing whether a problem is network, transport, or firmware related.
  • Clarifies which alarm and telemetry fields the tracker will deliver so Plaspy can map those to fleet workflows and alerts.
  • Supports planning for firmware updates and hardware changes by understanding potential protocol changes across revisions.
  • Improves device provisioning and firewall configuration by using Plaspy’s single port strategy and shared endpoint.

Why Use Plaspy with This Protocol​

Using the TK319‑H with Plaspy provides a straightforward path to live vehicle visibility, alarm management, and fleet reporting. The tracker’s ACC detection, motion and safety alarms, and optional relay and sensor inputs map naturally to Plaspy’s fleet and incident workflows, making the combination useful for fleet operators, rental fleets, and high value asset protection.

If you are evaluating or deploying TK319‑H devices, Plaspy’s single endpoint model and automatic protocol detection reduce configuration complexity. To learn more about Plaspy and how it can integrate with EElink devices visit https://www.plaspy.com. For device specific protocol definitions, firmware notes, and the latest implementation details consult the manufacturer at https://www.eelink.com.cn/ to confirm current behavior and version dependent features.

Tracker Communication

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