3
1.2 SMIC cable pinout to KEP devices
ZOIDDx, MMI-1XX and MMI-2XX Pin Designations
Pin assignment of the 9 pole SUB-D Male Connector
Pin#
Symbol
Function
1
Shield
Earth Ground
2
TxD
Transmitted Data, RS232 signal levels
3
RxD
Received Data, RS232 signal levels
4
Not used
5
GND
Signal Ground
6
Vcc
DO NOT GROUND THIS PIN
Used to power SMIC signal conversion circuitry if applicable.
7
Not used
8
CTRL
Flow Control Line for some two wire RS485 applications
9
RSV
Grounding this pin signals the KEP device to begin establishing
communications with the controller
MMI TS RS232 Pin Designations
Cables connecting to PLC [RS-232] Port. Pin assignment of the 9 pole SUB-D Male Connector
Pin#
Symbol
Function
1
Not used
2
TxD
Transmitted Data, RS232 signal levels
3
RxD
Received Data, RS232 signal levels
4
Not used
5
GND
Signal Ground
6
Not used
7
CTS
Clear to send input, RS232 signal levels
8
RTS
Ready to send output, RS232 signal levels
9
RSV
Grounding this pin signals the KEP device to begin establishing
communications with the controller
MMI TS RS485 Pin Designations
Cables connecting to PLC [RS-485] Port. Pin assignment of the 9 pole SUB-D Female
Connector.
Pin#
Symbol
Function
1
Rx-
RS485 Receive, RS485 signal levels
2
Rx+
RS485 Receive, RS485 signal levels
3
Tx-
RS485 Transmit, RS485 signal levels
4
Tx+
RS485 Transmit, RS485 signal levels
5
GND
Signal Ground
6
Not used
7
TxD
Transmitted Data, RS232 signal levels
8
RxD
Received Data, RS232 signal levels
9
Not used
