Fluke Biomedical 945A - Manual (Page 79)

Connector P2 - Detector Connector
Pin Signal Internal Connection
1 +15 VDC Not used in most applications
2 -15 VDC Not used in most applications
3 Supply Ground Power Supply Ground
4 Transmit + Communication Board
5 Transmit - Communication Board
6 Receive + Communication Board
7 Receive - Communication Board
8 Loop Voltage +
Fused + 15 VDC Communication Board
9 Loop Voltage -
Fused -15 VDC Communication Board
10 0 - 10 Vdc* Main Circuit Board J5-10
11 Ground Main Circuit Board J5-9
12 Check Source Line Not used in most applications
13 Neutral Not used in most applications
14 Alarm Switch Line Not used in most applications
* 0 - 10 Vdc selected for customer use on P2 (10,11) or P6 (5, 6), not both.
Connector P3 - Power Input
Pin Signal Internal Connection
1 120 Vac, Line Line fuse (F2)
2 120 Vac, Neutral Power Supply, 120 Vac (n)
3 Safety Ground Chassis
8-3