Siemens SIMADYN D - Page 173

Communications support modules
Hardware - SIMADYN D 6-25
Edition 12.2004
6
"P
"M
+Iq +RxD
-RxD
-Iq
+TxD
-TxD
a)
b)
"P
"M
+Iq
+RxD
-RxD-Iq
+TxD
-TxD
Fig. 6-6: Recommended cable connection:
Current source and transmitter at the same end
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