An input and output interface and a switch remote monitoring device
A technology of input-output interface and output interface, which is applied in the electronic field, can solve problems such as inability to realize other functions, high module complexity, and inability to realize functions, and achieve the effect of improving anti-interference ability
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Embodiment 1
[0032] An input and output interface includes a connected input interface and an output interface. Among them, the input interface includes:
[0033] Isolated power supply module, used to convert 12V power supply to 3.3V power supply;
[0034] The interface module is respectively connected to the isolated power supply module and the output interface of another input-output interface, and is used for signal transmission between the output interface.
[0035] Among them, such as figure 1 As shown, the isolated power supply module includes: a pull-up resistor R1, a voltage conversion chip U1, a first filter unit, and a second filter unit. One end of the pull-up resistor R1 is connected to +12V voltage, and the other end is connected to the CTRL end of the chip U1 and the grounded capacitor C4. The first filter unit includes an inductor L1 and capacitors C1, C2, and C3 connected in parallel. One end of the capacitor C1 and the pull-up resistor R1 are both connected to a voltage...
Embodiment 2
[0043] According to the input and output interface provided in the first embodiment above, this embodiment provides a switch remote monitoring device including the input and output interface.
[0044] A switch remote monitoring device comprises a PC, a master switch and a slave switch connected in sequence. Wherein, the master switch and the slave switch both include an input and output interface, and the input interface Ain of the master switch is connected to the output interface Bout of the slave switch, and the output interface Aout of the master switch is connected to the slave switch. The input interface Bin of the switch is connected.
[0045] When the slave switch is idle or fails, the information is fed back to the Ain interface through the interface Bout. After the master switch receives the information, it informs the PC, and the PC transmits the control command to the Bin interface through the Aout interface of the master switch, so that the master switch can commu...
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