RS232 serial port Damaged probabilities and connection reg

Published: 4/10/2017
RS232 serial port Damaged probabilities and connection reg
Source: ELECTRONICS.STACKEXCHANGE.COM

I have weighbridge digitizer and it has two serial port like COM1 and COM2. one of the COM port is connected to customer PC and another one port is connected for another PC and distance is 10Mtr. Now second COM port is gets failure and its doesn't show any out puts in serial terminal.I have verified the output cable of weighbridge digitizer.in that, Pins 1,4,6 are shorted and Pin 7&8 is short

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