Lake Shore Model 218 Temperature Monitor User’s Manual
7-6
Service
7.9 SERIAL INTERFACE CABLE AND ADAPTERS
218 to PC Serial Interface – PC with DE-9P
218 DE-9P
Standard Null-Modem Cable (DE-9S to DE-9S)
PC DE-9P
5 - GND
5 - GND
2 - RD (in)
3 - TD (out)
3 - TD (out)
2 - RD (in)
4 - DTR (out)
6 - DSR (in)
6 - DSR (in)
4 - DTR (out)
1 - NC
7 - RTS (out)
7 - DTR (tied to 4)
8 - CTS (in)
8 - NC
1 - DCD (in)
218 to PC Serial Interface – PC with DB-25P
218 DE-9P
Standard Null-Modem Cable (DE-9S to DB-25S)
PC DB-25P
5 - GND
7 - GND
2 - RD (in)
2 - TD (out)
3 - TD (out)
3 - RD (in)
1 - NC
4 - RTS (out)
7 - DTR (tied to 4)
5 - CTS (in)
8 - NC
8 - DCD (in)
6 - DSR (in)
20 - DTR (out)
4 - DTR (out)
6 - DSR (in)
218 to PC Interface using Null Modem Adapter
218 DE-9P
Null Modem Adapter
PC DB-9P
5 - GND
5 - GND
2 - RD (in)
3- TD (out)
3 - TD (out)
2 - RD (in)
1 - NC
4 - DTR (out)
6 - DSR (in)
1 - DCD (in)
4 - DTR (out)
6 - DSR (in)
7 - DTR (tied to 4)
8 - CTS (in)
8 - NC
7 - RTS (out)
9 - NC
9 - NC
NOTE:
Same as null modem cable design except PC CTS is provided from 218 on DTR.
218 to Serial Printer (Printer with DB-25S/P)
218 DE-9P
PC to Printer Cable (using hardware flow control)
Printer DB-25S/P
3 - TD (out)
3 - RD (in)
2 - RD (in)
2 - TD (out)
8 - NC
20 - DTR
6 - DSR (in)
1 - NC
5 - GND
7 - GND