Canon imageRUNNER ADVANCE 6075 Series Service Manual page 1340

Jack Abbreviated Signal
No. Name
J463 -CLK Clock Signal (-CLK)
+CLK Clock Signal (+CLK)
+TX Transmission Signal (+TX)
-TX Transmission Signal (-TX)
+RX Reception Signal (+RX)
-RX Reception Signal (-RX)
Signal Name
T-10-3
XI
XI