Nokia 7250 Ixr X1 Installation Guide

The X1 chassis weighs about 40 lbs (18kg) fully loaded. The box arrives looking like it survived a FedEx apocalypse, but Nokia’s packaging is military-grade. Save the foam inserts—you’ll need them if you ever have to RMA this thing.

| Symptom | Probable Cause | Resolution | |--------|----------------|-------------| | No console output | Wrong baud rate or cable | Set to 115200, 8N1. Use correct RJ-45 pinout (Cisco-style). | | Power LED red | PSU failure or overcurrent | Check AC voltage. Swap PSU to known good slot. | | Fans at 100% speed | One fan missing or failed | Re-seat all four fan modules. Check airflow direction. | | Interface down with optic | Unsupported transceiver | Run show system transceiver to verify Nokia qualification. | | Unable to commit config | Syntax error in CLI | Run info from config mode to see pending changes. | nokia 7250 ixr x1 installation guide

The 7250 IXR requires a license file to operate ports at full capacity. You will need to upload the license file (via TFTP/SCP) to the cf3: (flash) directory and reference it in the boot configuration. The X1 chassis weighs about 40 lbs (18kg) fully loaded

| Problem | Likely Cause | Solution | |---------|--------------|----------| | No console output | Wrong baud rate | Set terminal to 115200 | | PSU LED amber | Overcurrent or voltage out of range | Check AC/DC input, replace PSU | | Ports down | Optical power low or polarity reversed | Swap fiber pairs, check DOM show optics | | Overheat alarm | Fan tray mismatch or blocked airflow | Verify all fans F2B (or B2F) and clear intake | | Cannot commit config | Syntax error or candidate not locked | Use show configuration candidate | | SSH refused | No AAA or key config | Generate host key: system security ssh host-key generate | | Symptom | Probable Cause | Resolution |