Optical Link Upgrade for VCCS Air Traffic Communication at Tribhuvan International Airport

Overview

Mahavir Shree International Pvt. Ltd. completed the supply, delivery, installation, and testing of spare parts for the optical link between RCR and ACC/APP/TWR for VCCS ATS communication at Tribhuvan International Airport (TIA), Kathmandu, for the Civil Aviation Authority of Nepal (CAAN). The project, reference SF-79-2536, ran for a duration of 1 year and 4 months and reached completion on 2 December 2023. It integrated RAD Multiservice Access Node and Megaplex-4 systems into the airport's communication network for E1 signal transmission between RCR and the Tower (TWR), Approach Control (APP), and Area Control Center (ACC).

Scope & Deliverables

• Supply and installation of RAD communication equipment: MP-4100M-VS/16E1T1/EOP, MP-4104-2/48R/622GREAUTPR/155SK, SFP-3H modules, and CBL-G703-8/RJ45/ST adapter cables.
• Configuration of redundant Multiservice Access Node (MSAN) systems, using RAD's MP-4104 platform, for VCCS operation with automatic redundancy activation.
• Installation of a 150-meter, 8-core optical fiber link between RCR and ATS units.
• Testing and commissioning of the VCCS communication system.

Outcome

The optical link and RAD equipment, including the Megaplex-4 systems, were tested, commissioned, and handed over to CAAN. The VCCS at TIA now provides E1 signal transmission between RCR and the TWR, APP, and ACC, with the MP-4104 units configured for automatic redundancy activation to maintain 24/7 operation.