MKD Product Safety Guide | 8 Appendix
8.3.4.9 X20A, X20B: MKD-C, String 2/3 DC Power
8.3.4.10 X21A, X21B: MKD-C, String 2/3 Communication
8.3.4.11 X22: MKD-C, String 1 Communication
8.3.4.12 X23: MKD-C, MKD-N, String 1 DC Power
Pin Signal
146
Kollmorgen | kdn.kollmorgen.com | February 2020
Pin
Signal
Description
1
+ST
String DC Power +
2
-ST
String DC Power -
3
PE
Protective earth
Pin
Signal
Description
1
Rx +
Receive +
2
Rx -
Receive -
3
Tx +
Transmit +
6
Tx -
Transmit -
Pin
Signal
Description
1
Tx+
Transmit +
2
Tx -
Transmit -
3
Rx +
Receive +
6
Rx -
Receive -
Description
1
+ DC
DC bus link +
2
- DC
DC bus link -
3
PE
Protective earth
MKD-C, bottom
3 pin, pitch 5.08 mm
X20A for String 2, X20B for String 3
MKD-C, bottom
Mini I/O
X21A for String 2, X21B for String 3
MKD-C, front
RJ45 with built-in green and yellow LEDs
MKD-C, MKD-N, front
3 slide contacts with screws
Connects DC-Bus link between modules