Brand: NEC
Category: Other
Document Type: Installation Guide
Language: EN
Installation Guide for QX-S5500
Uploaded: Nov. 21, 2025, 7:29 p.m.
Manual Publish Date: 2016-05-01
The QX-S5500 Series Ethernet Switches are Layer 3 Gigabit Ethernet switching products designed for distribution or access devices in intranets and metropolitan area networks. They support IPv4/IPv6 dual stack and 10 GE uplink interfaces, offering abundant service features and can be used for connecting server groups in data centers. The switches also support Intelligent Resilient Framework (IRF) technology, allowing multiple switches to be connected via 10 GE ports to form a logical entity for a highly reliable, expandable, and manageable network.
Troubleshooting and error codes
| PWR | Steady green | The switch is started normally. (powered on) |
|---|---|---|
| PWR | Flashing green (1 Hz) | The system is performing Power-On Self Test (POST) or downloading software image. |
| PWR | Steady red | POST failed or other system failed. |
| PWR | Flashing yellow (1 Hz) | POST on some ports failed. |
| Off | The switch is powered off. |