Phone: 91-79-4002 4896 / 97 / 98 (M) 0-98253-50221
www.interfaceproducts.info
Cable Diagram for RS-422 / 485:
TABLE IV: OUTPUT CABLE – 4 Wire (RS-422)
D9-Male (LD-15U)
Pin No.
Instrument
-Rx
3
-TX
+RX
4
+TX
+TX
5
+RX
-TX
6
-RX
TABLE V: OUTPUT CABLE – 2 Wire (RS-485)
D9-Male (LD-15U)
Pin No
Instrument
+TX / + RX
5
+TX / +RX
-TX / - RX
6
-TX / -RX
Above Cable diagram is for, from unit to (ML LD 15 U) to P.L.C.
DB-9 Male is on ML LD 15U. So, you need to use DB-9 Female at RS-422 /
485 LD 15U side.
