> For the complete documentation index, see [llms.txt](https://docs.eseye.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.eseye.com/hera604/readme.md).

# About the Hera 604

Learn about Hera 604 connectivity, interfaces, and remote management.

The Hera 604 is an M2M-grade 3G/4G router for connecting IoT devices and remote assets over cellular, Wi-Fi and Ethernet networks. It is the LTE model in the Hera 600 series and supports automatic failover from Ethernet WAN to cellular.

Its aluminium enclosure makes it suitable for industrial and remote installations.

### Key features

* **Multi-network cellular connectivity:** The embedded Eseye AnyNet SIM provides access to more than 800 mobile networks across 190 countries. Two removable SIM slots provide additional connectivity options.
* **Automatic connectivity recovery:** The Health Monitor can optionally activate High Availability. If connectivity is lost, High Availability scans for available networks, then cycles through and tests each network until connectivity is restored.
* **Local device connectivity:** Four Gigabit Ethernet ports, concurrent Wi-Fi and two serial ports support different types of connected equipment.
* **Edge protocol conversion:** Included applications connect serial and Modbus equipment to MQTT and IP services.
* **Remote device management:** The DMS Management Server provides remote access to device configuration and status, including remote update options.

### Technical capabilities

| **Capability** | **Details**                                                                      |
| -------------- | -------------------------------------------------------------------------------- |
| Cellular       | Cat 13 LTE, with download speeds up to 400 Mbps and upload speeds up to 150 Mbps |
| SIM            | Embedded AnyNet SIM and two removable SIM slots                                  |
| Ethernet       | Four 10/100/1000 ports, with port 4 configurable as WAN or LAN                   |
| Wi-Fi          | Concurrent 2.4 GHz and 5 GHz 802.11ac Wave 2, with up to four SSIDs              |
| Serial         | Two RS232, RS422 or RS485 data ports, plus a management port                     |
| Networking     | Internal VLANs only, up to 16 LAN subnets, and DHCP server, client and relay     |
| Security       | Stateful firewall, IP filtering, NAT, NAPT and denial-of-service protection      |
| VPN            | IPsec tunnelling                                                                 |

### Included applications

The Hera 604 includes the following applications:

* Serial to IP
* AWS IoT
* UDP/TCP to MQTT
* Serial to MQTT
* Modbus to MQTT
* AnyNet Secure Cloud Connection

### Connected services

| **Service**           | **Description**                                                                       |
| --------------------- | ------------------------------------------------------------------------------------- |
| AnyNet SIM            | Provides access to more than 700 mobile networks across 190 countries                 |
| Infinity IoT Platform | Provides connectivity management, condition monitoring, device data and alerts        |
| AnyNet SMARTconnect   | Maintains secure connectivity and service availability across cellular networks       |
| DMS Management Server | Provides remote access to device configuration and status, with remote update options |

### Common use cases

The Hera 604 supports deployments such as:

* Vending machines
* Digital signage
* EV charging points
* Industrial control panels
* Remote equipment that requires cellular connectivity or automatic failover


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.eseye.com/hera604/readme.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.