A communication apparatus and a start method thereof
A communication device and technology for establishing communication, applied in the direction of program loading/starting, program control device, etc., can solve the problem of different configuration information, etc., and achieve the effect of shortening the fault maintenance time
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no. 1 example
[0026] figure 1 It is a schematic diagram of the communication device provided by the first embodiment of the present invention, which is represented by figure 1 It can be seen that, in this embodiment, the communication device 1 provided by the present invention includes: a main control board 11, a fixing device 12 and a storage device 13, wherein,
[0027] The main control board 11 refers to a single board for realizing the main functions and control of the communication device 1, the fixing device 12 is used for fixing the main control board 11, and the storage device 13 is used for storing configuration information of the communication device 1;
[0028] The storage device 13 is arranged on the fixing device 12 , and when the communication device 1 is started, the processor in the main control board 11 reads the configuration information and guides the main control board 11 to start up.
[0029] The present invention realizes the separation of the storage device 13 and th...
no. 2 example
[0040] In this embodiment, the communication equipment includes only one main control board, the storage device is an electronic barcode chip, and the fixing device is a backplane. figure 2 Shown:
[0041] The electronic barcode chip is fixed on the backboard, the protection device is set on the main control board, and its power supply is provided by the main control board. In order to improve reliability, the main control board adopts an overcurrent protection chip 21 to realize power supply control, so as to realize the function of the overcurrent protection circuit. The overcurrent protection chip can use chips such as MAX1607 and TPS2401. These chips have enable pin control The output of the power supply can automatically cut off the power supply in case of overcurrent to prevent the chip from burning.
[0042] For the I2C signal communicated between the electronic barcode chip and the main control board, an I2C hot-swap control chip 22 is added on the main control board...
no. 3 example
[0045] In this embodiment, the communication equipment includes only two main control boards, the storage device is an electronic barcode chip, and the fixing device is a cabinet. image 3 Shown:
[0046] The protection device is arranged on the main control board, and the communication equipment includes two protection devices. Each protection device includes an overcurrent protection circuit (using an overcurrent protection chip 21) and a current sharing circuit to prevent the two main control boards from The mutual influence of the power supply when the boards are all plugged in, because the working current of the electronic barcode chip is relatively small, the current equalizing circuit can be realized by using a diode 31 with a low voltage drop.
[0047] The I2C hot-swap control circuit adopts the figure 2 The same I2C hot plug control chip 22 is used for protection. The enabling pins of the power overcurrent protection chip 21 and the I2C hot-swap control chip 22 are a...
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