C5500XK SmartNID user guide
Learn about using your C5500XK SmartNID, including features and specifications, installation, and troubleshooting.
Features of the C5500XK
- The C5500XK combines the functions of a modem and a fiber-optic network terminal into one device. It decodes the optical signals that make your fiber internet work.
- This device will be permanently installed (attached to the wall) inside your home or small business. Do not remove it if you move or cancel service.
- For WiFi coverage, this device must be paired with 360 WiFi or your own router.
Speed specifications
The C5500XK SmartNID is tested and certified to run at speeds up to 940 Mbps on the Quantum Fiber network.
Note: Speeds reflect the maximum download speed the technology can deliver with Quantum Fiber service. In-home speeds may differ based on router setup, devices and other factors.
Installation of a C5500XK
A Quantum Fiber technician will install the SmartNID in your property by attaching it to the wall and carefully connecting it to our fiber network. As a network terminal, it should remain in place even if you move or cancel service.
Troubleshooting
If you're having internet problems, you can try restarting your SmartNID to refresh the connection. Also troubleshoot your 360 WiFi setup to make sure your pods and SmartNID are connected properly.
NOTE: If you have a wall-mounted SmartNID, please be careful when restarting. Do not unplug the green wires on the bottom of the device. These are part of the fiber connection and should not be disconnected.
SmartNID status light table
The status light on the front of your SmartNID can tell you about the connection. It will be solid green most of the time, indicating that it's online and connected to our fiber network. During initial bootup or in the case of a connection error or special scenario, it may be a different color, according to the table below.
| Light color | Description |
| Solid red | Hardware test during boot-up |
| Blinking red | Failed hardware test. Please call or chat for help |
| Blinking blue | Syncing with the network |
| Solid blue | Syncing complete; ready for use |
| Solid amber | Account action required |
| Solid green | Connected |
| Solid white | Transparent bridge mode (advanced) |
| Off | Not connected |
Note: As it does not have WiFi capabilities, the C5500XK SmartNID cannot use WPS to connect to devices.
Firmware
Finally, if instructed to do so by a member of our support team, you can download and install the latest firmware for your SmartNID.
Related topics
SmartNID C5500XK info (PDF)
Get the Quantum Fiber app
Manage your Quantum Fiber account
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