Connector; Connector Pin-Out - Instrutech Busy Bee PCM301 User Manual

Instruction Manual

3.2.2 Connector

Good, recommended practice is to remove power from any cable prior to connecting or disconnecting it.
The PCM301 is provided with one 9-pin D-sub male connector used for the I/O interface. Fabricate a cable to
connect to the vacuum gauge as shown below:

3.2.3 Connector pin-out

9-pin D-sub (DE-9P) male connector (used for analog output and digital I/O)
PIN NUMBER PIN DESCRIPTION
1 Relay 1 (SP1), Normally Open
2 Not assigned
3 Power Input (15 to 30 Vdc, 2.5 W) protected against power reversal and transient over-voltages
4 Power common GND
5 Analog output (Log-Linear 0 to 8 Vdc, 1 V/decade)
6 Relay 1 Common
7 Relay 2 Common
8 Analog output common
9
Relay 2 (SP2), Normally Open
Measurement
signal
+24V
InstruTech
Wiring Diagram
SP1
SP2
4.7
4.7
18V
PCM301 Busy Bee
1
6
7
9
5
8
3
4
+
–
+
–
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