Time frequency system in which host controls startup and shutdown of a plurality of extensions and control method

Abstract

The invention discloses a time frequency system in which a host controls startup and shutdown of a plurality of extensions. The system comprises a time frequency host and n time frequency extensions.A first power module, a first time frequency cascading module, a first switch and a time frequency processing module are set in the time frequency host. A second power module, a second time frequencycascading module, a second switch and a time frequency expansion module are set in each time frequency extension. The first power module and the second power modules are connected with power suppliesat positions where the first power module and the second power modules are located through the first switch or the second switches. The first power module controls the startup and shutdown through thefirst switch. The first power module outputs main power to the time frequency processing module of the time frequency host and outputs auxiliary power and a power state to the first time frequency cascading module. The second power modules control the startup and shutdown through the second switches or remote startup and shutdown control signals output by the second time frequency cascading modules. According to the time frequency system in which the host controls the startup and shutdown of the plurality of extensions, the startup and shutdown can be controlled uniformly, the expandability is good, the host interface consumption is low, and the engineering wiring and installation are convenient.

Description

technical field [0001] The invention relates to the special communication industry, and is a method for controlling multiple extensions on and off by a time-frequency equipment host. The terminal of the time-frequency host can be used to switch on and off all extensions, which can solve all problems in the time-frequency system. Equipment remote unified start, shutdown and other operations and daily maintenance management. Background technique [0002] The traditional switch of the equipment is controlled by the local switch of the equipment, which turns on or off the power supply signal. When the switch turns on the power signal, the equipment is powered on and starts to work; when the switch turns off the power signal, the equipment is powered off and shuts down. This method is direct and effective, and its implementation is relatively easy and reliable. It is the switch control method adopted by most equipment. [0003] The time-frequency system consists of a host and mu...

AI Technical Summary

Problems solved by technology

Since the main and extension equipment will be distributed in various locations, it is difficult to independently switch all equipment on and off at the same time, which greatly affects the initial startup, shutdown and mid-way maintenance management of the system. Remote unified control of all equipment on and off is the best way. However, the traditional method is to adopt a centralized unified power supply. A power distribution box outputs the power supply of each device, connects the devices distributed in different locations, and controls the power on and off by turning on or off the power supply at the end of the distribution box.

This method is simple to implement, but there are many power cables, and when the DC power supply is used, there will be a large cable loss, which increases the difficulty of system connection construction and reduces the efficiency of power transmission.

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