User Manual for EKI-2525/2525I 5-port 10/100Base-TX Industrial Unmanaged Ethernet Switch and EKI-2528/2528I 8-port 10/100Base-TX Industrial Unmanaged Ethernet Switch
This manual provides installation and troubleshooting guidance for Advantech's EKI-2525/2525I and EKI-2528/2528I industrial unmanaged Ethernet switches. It covers features like dual power input, surge protection, wide operating temperature, and LED indicators for status monitoring. The manual also includes safety precautions, mounting instructions, and wiring specifications for proper setup and maintenance.
The switches support auto-sensing transmission speeds (10/100 Mbps) and automatic MDI/MDI-X detection. They are designed for harsh industrial environments with protection against ESD and voltage surges. Troubleshooting steps are provided for common issues including power problems, cable selection, and LED indicator diagnostics.
| Operating Temperature | –10 ~ 60 ℃ (EKI-2525/2528) or –40 ~ 75 ℃ (EKI-2525I/2528I) |
|---|---|
| Surge Protection | 3,000 VDC for power line, 4000V ESD for Ethernet ports |
| Power Input | Dual power input, +12~48 V DC |
| Ethernet Ports | 5-port (EKI-2525/2525I) or 8-port (EKI-2528/2528I) |
The EKI-2525/2528 operates between -10 ~ 60 ℃, while the EKI-2525I/2528I operates between -40 ~ 75 ℃.
Use a +12~48 V DC power cord/adapter; do not use an adapter with DC output voltage higher than 48V.
Use UTP or STP cable: Category 3, 4, or 5 for 10 Mbps, Category 5 for 100 Mbps, with maximum length of 100 meters.
The P-Fail LED turns on when one power input fails, signaling an alarm through a relay output.