8
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
