MB-1 and NDB-200 communication transmission scheme

1. MB-1 and NDB-200 communication transmission scheme

Through the communication with some technical personnel of some airport customers, the currently used MB-1 pointing beacon and NDB-200 non-directional beacon are transmitted through copper lines. However, in view of the large attenuation of copper transmission, poor anti-interference ability, inconvenient maintenance and other factors. It is necessary to transform the original copper cable into optical cable transmission. Two sets of transmission equipment are needed to transmit the remote station MB-1 and NDB-200 signals to the air traffic control building.

2. MB-1 and NDB-200 communication transmission - solution

Based on fiber-optic transmission MB-1 and NDB-200, Guangzhou Yinxun Company recommended ZMUX-3032 integrated service access equipment.

One unit ZMUX-3032 is installed in the remote station and the air traffic control building, and the MB-1 and NDB-200 signals are connected to the ZMUX-3032 user interface for transmission through the optical fiber.

The networking diagram is as follows:

Network diagram of MB-1 and NDB-200 fiber transmission

The system transmission is stable and reliable. It has been successfully used by many airport customers such as Inner Mongolia Air Traffic Control Branch, Xinjiang Air Traffic Control Branch, and Chengdu Shuangliu Airport, and has been recognized and praised by customers.

The ZMUX-3032 is 19inch 1U high and modular design with 30 universal module slots and 1 Ethernet slot. Each service module works independently, and one module corresponds to one user interface. For example, the MB-1 slot failure does not affect the normal transmission of the NDB-200 service, and ensures the reliable transmission of important services of the airport.

The ZMUX-3032 is very convenient to expand. The expansion module is plug and play and does not require any debugging. The equipment can also transmit other common services of the airport, such as: Vaisala meteorological automatic observation in Finland, Changchun meteorological observation, automatic transfer business, Norwegian NORMARC NM7000 series blind drop, US MK10 blind drop, Italian THALES company ILS410 blind drop, Italy THALES company DVOR4000 Omni-directional beacon, Italy DHALES FSD-40/45DME range finder, Australia AWA VRB-52D omnidirectional beacon, Australia INTER-SCAN LDB-102 DME range finder, Shanghai Aiwei NDB-200G/ NDB-500G non-directional beacon, Shanghai Aiwei MB-1 pointing beacon, Italy OTE AK-100 remote control box & DTR-100 VHF radio, Germany R&S company GB4000V remote control box and XU4200 digital radio, Germany R&S company GB409 remote control box and XU250A analog radio, British PAE T6TR VHF radio, Norway Jottron TR7550 VHF radio, USA RAYTHEON radar, Italy THALES radar, Italy SELEX radar, Spain INDRA radar, monitoring data, Ethernet Net, phone, etc...

3.other solutions

Our company provides network structure for various transmission modes of airport customers. It can also provide: single E1 channel transmission, dual E1 channel protection transmission, dual optical fiber protection transmission, and one optical and one E1 protection transmission (one ground and one air protection) variety of solutions, the specific networking diagram is as follows.

1)Some airport customers can provide E1 transmission channel. Based on E1 transmission MB-1 and NDB-200, we recommend ZMUX-3030 PCM integrated service multiplexing equipment. The networking diagram is as follows:

Network diagram of MB-1 and NDB-200 E1 transmission

2)Based on the E1 channel provided by two different transmission modes, two transmission routing master and spare protections are implemented. We recommend ZMUX-3036 intelligent PCM multiplexing equipment. The networking diagram is as follows:

Dual E1 channel protection transmission MB-1 and NDB-200 networking diagram

Normally, the MB-1 and NDB-200 signals are transmitted through the main E1 channel. When the main E1 fails, ZMUX-3036 automatically switches to the spare E1 channel transmission; when the main E1 returns to normal, ZMUX-3036 automatically switches back to the main E1 channel transmission. The entire switching process is automatic switching of the system, no manual operation is required, and the switching can reach the level of no damage, that is the switching process service is not interrupted.

3)Some airport users also proposed two channel fiber optic back up protection transmission or one channel terrestrial fiber and one channel wireless microwave protection transmission requirements. Guangzhou Yinxun Company has developed a ZMUX-3036S2 dual optical port protection integrated service access device and a ZMUX-3036ES optical and electrical protection integrated service access device, which can fully meet the above special requirements of customers. The networking diagram is as follows:

Dual optical protection transmission MB-1 and NDB-200 network diagram

fiber and E1 channel 1+1 back up protection transmission MB-1 and NDB-200 networking diagram

Transmission of MB-1 and NDB-200 in one fiber and one E1 protection (one ground and one space protection)

ZMUX-3036, ZMUX-3036S2 and ZMUX-3036ES can support centralized network management.

The centralized monitoring system can be installed in the monitoring room of the air traffic control building. It can monitor the whole network equipment of the central office and the remote station in real time. It can monitor: transmission link status, link protection status, user port status, etc., and can query the system fault log and Logs such as link failures and user port failures during a certain period of time.

The system fault alarm mode can support: device illumination indicator alarm, monitoring system sound alarm, and mobile phone SMS remote alarm.