Lake Shore Model 421 Gaussmeter User’s ManualService 6-5 /, ./& , E' ?CBFA? "!&# >?' . . '(% - 7 / - /, /, - C-421-6-4.epsPIN DESCRIPTION123Normally Closed (NC)Common (C)Normally Open (NO)Figure 6-4. RELAY Terminal Block Details = > ? # $% & # $% &@ A BD C-421-6-5.epsModel 421 Gaussmeter (DTE) Computers and Printers (DTE)DE-9P DB-25P DE-9PPin Description Pin Description Pin Description1 No Connection 2 TD (out) 1 DCD (in)2 Receive Data (RD in) 3 RD (in) 2 RD (in)3 Transmit Data (TD out) 4 RTS (out) 3 TD (out)4 Data Terminal Ready (DTR out) 5 CTS (in) 4 DTR (out)5 Ground (GND) 6 DSR (in) 5 GND6 Data Set Ready (DSR in) 7 GND 6 DSR (in)7 Data Terminal Ready (DTR out) (tied to 4) 8 DCD (in) 7 RTS (out)8 No Connection 20 DTR (out) 8 CTS (in)9 No Connection 22 Ring in (in) 9 Ring in (in)Figure 6-5. SERIAL I/O (DTE) Connector Details
