The Nokia 7250 IXR-X1 features field-replaceable units (FRUs) for redundancy. Installing Fan Trays
The chassis supports dual redundant AC or DC Power Supply Units (PSUs). Ensure your power circuits match the rating plate on the modules. Required Tools Phillips #1 and #2 screwdrivers Torque screwdriver (calibrated to in-lbs or N-m) ESD wrist strap and grounding cord Digital Multi-Meter (DMM) 19-inch rack-mount kit (included brackets and screws) 2. Unboxing and Hardware Inspection
Configure your terminal emulation software (e.g., PuTTY, Tera Term) to the following settings: 115200 Data Bits: 8 Parity: None Stop Bits: 1 Flow Control: None Verifying Hardware Status nokia 7250 ixr x1 installation guide
| 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. |
Open a terminal emulation program (e.g., PuTTY, Tera Term) on your connected laptop. Use the standard serial settings: Baud rate: 115200, Data bits: 8, Parity: None, Stop bits: 1, Flow Control: None . Required Tools Phillips #1 and #2 screwdrivers Torque
Verify connectivity by executing a ping to your gateway address: ping 192.168.1.1 . 8. Post-Installation Verification and Troubleshooting
Insert optical transceivers into the network interface slots until they click into place. Remove the rubber dust caps only when you are ready to connect fiber cords. | | Power LED red | PSU failure
For detailed documentation, software updates, and support, please refer to the official Nokia Support Portal.