Ormec SMLC 160, Installation & Operation Manual, Page: 64 / 66

ServoWire Motion & Logic Controller Manual Appendix C
Appendix C – SMLC Interface Cables & Accessories
Serial Communications Null Modem Cable to PC
This cable is used with the SMLC RS ‐ 232 serial connector and Windows Dial ‐ up connections.
SMLC – J20 PC
Data Carrier Detect (DCD)
Receive Data (RD)
2 ‐ 3
(TD) Transmit Data
Transmit Data (TD)
3 ‐ 2
(RD) Receive Data
Data Terminal Ready (DTR)
4 ‐ 6
(DSR) Data Send Ready
Signal Ground (SG)
5 ‐ 5
(SG) Signal Ground
Data Send Ready (DSR)
6 ‐ 4
(DTR) Data Terminal Ready
Request To Send (RTS)
7 ‐ 8
(CTS) Clear To Send
Clear To Send (CTS)
8 ‐ 7
(RTS) Request To Send
Table 28, SMLC Serial Communications cable
The above pin ‐ out will provide the best possible signaling between a SMLC and a PC allowing you to use
hardware flow control (RTS/CTS). This type of cable requires that you enable hardware flow control.
56 SMLC ‐ 004a