In view of the special environment of the underground pipe corridor, what requirements should the pipe corridor fiber phone have?

In view of the special environment of the underground pipe corridor, what requirements should the pipe corridor fiber phone have?

1. In view of the long transmission distance of the pipe corridor, the fiber transmission mode should be used;

2. In view of the characteristics of constant temperature and constant tide of the pipe corridor, the electrical products entering the corridor must have a protection level of not less than IP65. This is determined by the characteristics of the constant temperature and constant tide of the pipe corridor. There are many microorganisms in the pipe corridor. The corrosion of electronic components will be very serious, so the electrical equipment entering the corridor needs to have a very good protection level.

3. As a communication support system, he is also an emergency telephone system, so the system must have a key call function.

4. The system should be able to communicate with the external public network, not only to make outgoing calls in the pipe gallery, but also to enable users of the outside public network to make calls into the pipe gallery Calling any phone in the gallery does not affect the use of other phones, and it is truly non-blocking.

5. The system must have the function of self-inspection. The system should be in good condition of each phone in the system. In this way, the fixed-line communication system needs to have a monitoring function for its terminals and intermediate connection equipment, which can be any component in the system. Some parts include but not limited to the failure of switches, fiber optic transceivers, optical transceivers, telephones, etc., get feedback as soon as possible, and report to the operation and maintenance personnel for maintenance.

6. The system adopts the cascade mode. Any connected device in the middle provides the transmission signal to the next connected device. In this way, once a certain intermediate device fails, the network collapse or paralysis cannot be caused by a single failure. The cascade mode technology can be used. The entire network can continue to be used, bypassing the point of failure to ensure the normal use of the network.

7. It should also have a recording function to provide a basis for investigation and evidence collection of emergency situations in the pipe gallery.

8. With explosion-proof function, a lot of pipe corridors are now designed with gas bins. It is clearly stipulated in GB50838-2015 that the gas bins are classified as Class II explosion-proof places. Therefore, the telephones in the fixed-line communication system of the pipe corridor fiber phone must have national-level experiments The room has effective explosion-proof qualifications to meet the requirements for explosion-proof in the second-class places.

Tag: pipe corridor telephone, fiber optic telephone