Where to connect the RRU pigtail

The RRU pigtail should be connected between the RRU and an ODF or BBU using the appropriate fiber optic connectors (FC, LC, or SC) as specified for your RRU model.

Connection Procedure

Identify the Pigtail Ends The single-mode pigtail has a DLC connector on one end and an FC, LC, or SC connector on the other end.

The DL

C end typically connects to the RRU, while the FC/LC/SC end connects to the ODF or BBU. Check Cable Lengths For proper installation, the breakout cables on the BBU side and ODF side are usually 0. 34 m (1.

12 ft) and 0. 8 m (2. 62 ft), respectively.

Ensure the cable length is sufficient to reach the intended ports without tension. Connect to the RRU Insert the DLC connector into the designated fiber port on the RRU. Ensure the connector is fully seated and secured to prevent signal loss.

Connect to the ODF or BBU Insert the FC, LC, or SC connector into the corresponding port on the ODF or BBU. Follow the labeling on the breakout cable to match the correct transmit (TX) and receive (RX) channels. Secure and Label After connection, secure the pigtail to prevent movement and label both ends according to your network documentation.

This ensures easy identification for maintenance or troubleshooting. Check Signal and Status Power on the RRU and verify the CPRI link status. A steady green indicator typically confirms proper connection, while red or blinking lights may indicate a misconnection or fiber issue.

Additional Tips

Always handle fiber optic cables carefully to avoid bending or damaging the fibers.

Ensure the RR

U is properly grounded if the installation involves power and shielding connections. Follow the specific RRU model's installation manual for any additional steps, such as adding OT terminals for power cables if required. By following these steps, the RRU pigtail will be correctly connected, ensuring reliable communication between the RRU and the network infrastructure.