Lakeshore 331S - RS-232 Connector Details

Lake Shore Model 331 Temperature Controller User’s Manual
Terminal Block Connector
Lake Shore P/N 106-739
1
2
3
4
5
6
7
8
Use screwdriver to
lock or unlock wires
Insert wire
into slot
Slides into slot at
rear of Model 331
C-331-8-4.eps
Pin Description
1
2
3
4
5
6
7
8
Relay 1 – Normally Closed (NC)
Relay 1 – Common (COM)
Relay 1 – Normally Open (NO)
Relay 2 – Normally Close (NC)
Relay 2 – Common (COM)
Relay 2 – Normally Open (NO)
Analog Voltage Output – Hi (+)
Analog Voltage Output – Lo (–)
Figure 8-4. RELAYS and ANALOG OUPUT Terminal Block
12
3
45
6789
RS-232 (DTE)
F-331-8-5.eps
Model 331 Temperature Controller Typical Computers
DE-9P (DTE) DB-25P (DTE) DE-9P (DTE)
Pin Description Pin Description Pin Description
1 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 GND
6 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 8-5. RS-232 Connector Details
8-4 Service