User Manual

2.2 Wiring

Connector A (DB-15M):

This Connector is used for the DC Power Input and the Cold Junction Compensation (CJC)

Sensor Input. In addition, depending upon the Scanner Model, it also contains Meter Bus

signals and an RPM Input.

Pinout: Pin#

Pin Name

1 CJC Sensor Input (WHT)

2 +5VDC CJC Sensor Power (RED)

3 CJC Sensor Common (BLK)

4 +8VDC RPM Sensor Power

5 RPM Input

6 RPM Common

7 NO CONNECTION

8 NO CONNECTION

9 Display (IIC Bus) Data

10 Display (IIC Bus) Clock

11 CAN Bus +

12 CAN Bus -

13 Common

14 + DC Power In

15 DC Power Common

Connector B (DB-9F)

This Connector is used for RS-232 Communications to either a Laptop for Configuration or a

Modbus Communications Link.

Pinout: Pin# Pin Name

1 NO CONNECTION

2 Transmit Data Out

3 Receive Data In

4 NO CONNECTION

5 Common

6 NO CONNECTION

7 NO CONNECTION

8 NO CONNECTION

9 NO CONNECTION