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1.Overview
This program proposes a set of runway blind drop navigation optical transmission system based on SDH technology.
Through communication with relevant technical personnel at the airport, combined with the design and implementation experience of our company in the field of airport private network communication, a set of overall technical solutions for optical transmission system for airport runway navigation and blind drop is proposed, which highlights the system structure and business scale. The special needs of maintenance management, security control, emergency handling, etc., also take into account the continuity and scalability of future business and applications.
2.Solutions
In response to the special application requirements of domestic airport customers, our company has developed ZMUX series special network communication equipment for airport customers, which can fully meet the needs of current customers. It has been successfully operated for more than 100 airport customers in various provinces of the country for many years, and has been recognized and praised by customers.
At the same time, our company has nearly 10 years of cooperation experience with airport customers. We have been keeping exchanges with airport customers all the time. According to some good suggestions from airport customers, we have more personalized upgrades and new additions to ZMUX series equipment. Multi-network application.
2.1 Network diagram of runway blind drop transmission system
The center station installed 1 set of ZMUX-1100 series SDH optical transmission equipment and 1 set of ZMUX-3300 centralized integrated service access platform.
One set of ZMUX-1100 series SDH optical transmission equipment and one set of ZMUX-3036 intelligent integrated service access equipment are installed in each of the four remote stations.
Through the ZMUX-1100 equipment, a set of SDH optical ring network transmission system is set up, and an integrated service access system is set up by ZMUX-3300 and ZMUX-3036, and the service signals of each remote station are uniformly connected and multiplexed, and SDH self-distribution is adopted. The loop is transmitted to the central station.
2.2 SDH self-healing ring function
The ZMUX-1100 series SDH optical transmission equipment provided by this solution supports the self-healing ring function to meet the bidirectional transmission of signals. When a certain fiber of the SDH optical ring network fails, the ZMUX-1100 device can transmit signals from the other direction to the central station to ensure the reliability transmission of each service signal.
Normally, the SDH optical ring network is transmitted to the central station along the clockwise direction (in the direction of the orange arrow as shown below).
When the fiber of a certain part of the SDH optical ring network is faulty, the ZMUX-1100 self-healing ring function can realize that each service signal is transmitted from another direction to the central station.
for example:
From the western slip to the West Airlines to station of this fiber failure, the business service signals of Eastern Airlines to station, the Eastern slip, and the Western slip can no longer be transmitted to the central station through the western slip to the Western Airlines to the station fiber.
At this time, the ZMUX-1100 self-healing ring function can transmit the service signals of Eastern Airlines to station, Eastern slip, and West slip to the central station in the counterclockwise direction (as shown by the orange arrow in the figure below). The business signal from Western Airlines to station is transmitted to the central station along the clockwise direction
After the optical fiber returns to normal, the SDH optical ring network automatically returns to the default working condition (transmitted along the clockwise direction). The SDH self-healing protection function is automatically performed by the ZMUX-1100 device, and no manual operation is required to ensure the reliability transmission of important service signals.
2.3 Other functions
Optional device: Optional chassis card-mount device, optional compact device.
Optional protection: Optional dual E1 1+1 protection function, SDH route provides main E1, alternate route (such as: PDH, wireless microwave) provides spare E1.
Flexible configuration: multiple common module slots, business modules support mixed insertion, can be assembled according to customer business needs, one-stop solution for integrated business communication functions.
Compatible services: Meteorological self-view data, transfer data, weather radar data, VHF, ADS-B radar, secondary radar data, FXO/FXS, 2/4 line E&M, asynchronous/synchronous RS232, asynchronous/synchronous RS422 , RS485, 10BASE-T, V.21/V.22, V.24, V.34, switch, CAN bus, magnet phone, hotline, V.35, G.703 same direction 64k and other business modules.
Safe and reliable: 1 business module corresponds to 1 user interface, each module works completely independently, and the faults do not affect each other.
Optional dual power protection: Dual power input 1+1 protection.
Carrier-grade standard: The equipment has obtained the network access license of the Ministry of Industry and Information Technology, and the performance has reached the carrier-class standard.
Customized development capability: All products of our company are self-developed, have core technology, and apply for a number of national utility model patents, which can be tailored according to the special needs of private network users.
Quality Assurance: Our company strictly follows the ISO9000 quality management system. All products have passed the 48-hour high temperature aging test, 72 hours of normal temperature aging test, and the service ports have passed the lightning test.
Optional network management function: It can monitor the running status of the entire network device, and can monitor: transmission link, dual link protection, and service port status.
