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Pin No. Signal Designation
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#1 Shield Shield/protective ground
#2 M24 Ground of the 24 V output voltage
#3 RxD/TxD-P *) Receive data/transmission data plus
#4 CNTR-P Control signal for repeaters
(direction control)
#5 DGND *) Data transmission potential
(ground to 5 V)
#6 VP *) Supply voltage of the terminating
resistance-P, (P5V)
#7 P24 Output voltage plus 24 V
#8 RxD/TxD-N *) Receive data/transmission data negative
#9 CNTR-N Control signal for repeaters
(direction control)
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*) The mandatory signals must be supported by the user.