ABB s-093h 3bhb009885r0052  PHASE MODULE

Description

ABB s-093h 3bhb009885r0052  PHASE MODULE

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The power automation system based on the s-093h 3bhb009885r0052 protocol usually uses traditional PCM equipment for networking and provides low-speed asynchronous data channels through the 2/4-wire EM interface of the PCM equipment, The data of the RTU device needs to be modulated by an external modem before it can enter the 2/4-line EM interface. Correspondingly, a modem is also needed at the data receiving end to demodulate and restore the data. This networking method has three issues:

Firstly, data needs to be modulated and demodulated before transmission. Due to the limited bandwidth of the audio channel, the existing modulation methods can only provide a maximum data transmission rate of 2.4kb/s, and due to external interference factors, the data error rate is relatively high.

Secondly, The s-093h 3bhb009885r0052 equipment and automation equipment are managed by different departments and installed in their respective computer rooms. A large number of audio cables need to be laid between the communication room and the automation room. The long lines not only bring unforeseeable interference, but also increase the difficulty of daily line maintenance and fault diagnosis.

Thirdly, The multi-channel low-speed data output by the s-093h 3bhb009885r0052 modem needs to be converted into IP packets using a regular multi serial port server for SCADA system processing. Not only does it require a large number of modems, but it also requires a large number of port connections between modems and multi serial port servers, which is costly and poses a risk of poor port connections

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