Configuration Guide¶

1. Document Information¶

Document name: Configuration Guide
Product model: ER805
Firmware version: V2.0.1
Applicable scenario: device networking
Date: March 25, 2026

2. Gateway Overview¶

2.1 Product Introduction¶

The ER805 is a versatile edge access router that supports 5G/4G cellular and wired broadband access. Equipped with gigabit Ethernet ports and gigabit Wi-Fi, it supports network access for a wide range of digital terminals, meeting the networking needs of various commercial stores and enterprise offices while ensuring uninterrupted digital store operations and productivity. The ER805's multi-link switching policy and dual-SIM design enable multi-link backup, ensuring uninterrupted network connectivity with excellent network performance and high availability.

The solution also provides the Device Manager (Xiaoxingyun) SaaS platform, which helps you achieve centralized network configuration, remote device upgrades, remote fault diagnosis, and one-stop dynamic management of terminals and applications. With online network visualization and insights, your store and office networks are always under control.

2.2 Main Functions¶

4G/5G Internet access
Remote configuration, remote diagnosis, remote upgrade
Wide-temperature industrial-grade design

2.3 Typical Application Topology¶

POS terminal/cash register device → Ethernet → ER805 → 4G/5G → cloud platform/server

3. Hardware Description¶

3.1 Appearance and Interfaces¶

Power interface: DC 9–36V
Ethernet ports: LAN ×4 + 1 WAN
Wireless: 4G
Indicators: PWR, network, Wi-Fi
Reset button: restore factory settings

3.2 Wiring Instructions¶

3.2.1 Power Wiring¶

Positive: V+
Negative: V-
Note: reverse-polarity protection, lightning protection, and grounding

3.2.2 Ethernet Wiring¶

Auto MDI/MDIX (straight-through/crossover auto-sensing). Cat5e or higher cable is recommended.

4. Factory Default Parameters¶

Default IP: 192.168.10.1
Subnet mask: 255.255.255.0
Web username: adm
Web password: 123456

5. Preparation¶

Set the computer to an IP address on the same subnet as the gateway
Connect the computer to the gateway's LAN port with a network cable
Power on the router and wait for the RUN indicator to stay solid
Enter the device IP in a browser to access the configuration page

6. Network Configuration¶

6.1 Local Network Configuration¶

text

6.2 4G Wireless Network Configuration¶

Insert a 5G SIM card
Enable the mobile network
APN: automatic
Check signal strength

7. Enabling the Device Manager Platform¶

text

8. Configuration Backup and Restore¶

Export the configuration file
Restore factory configuration

9. Status Monitoring and Diagnosis¶

9.1 Running Status¶

Device online status
Network traffic, signal strength

text

9.2 Log Viewing¶

System log

10. Common Issues and Troubleshooting¶

Unable to open the Web page
Check whether the subnet, network cable, and IP address conflict
Reset the gateway and try again

11. Safety Precautions¶

Ensure reliable grounding at the industrial site
Change the LAN port address to the gateway of the local subnet
Back up the configuration after completion
Change the remote password regularly
Prohibit operation by unauthorized personnel