Fluke Biomedical 945A - Manual (Page 21)

Table 3-2. Connector P1 - Input/Output
Pin Signal Internal Connection
1 Spare Not Used
2 Spare Not Used
3 Spare Not Used
4 Spare Not Used
5 Spare Not Used
6 Spare Not Used
7 Fail Relay, common Relay Board K3-A
8 Fail Relay, n.o. Relay Board K3-B
9 Fail Relay, n.c. Relay Board K3-C
10 Fail Relay, common Relay Board K3-D
11 Fail Relay, n.o. Relay Board K3-F
12 Fail Relay, n.c. Relay Board K3-E
13 Warn Relay, common Relay Board K4-A
14 Warn Relay, n.o. Relay Board K4-B
15 Warn Relay, n.c. Relay Board K4-C
16 Warn Relay, common Relay Board K4-D
17 Warn Relay, n.o. Relay Board K4-F
18 Warn Relay, n.c. Relay Board K4-E
19 Alarm Relay, common Relay Board K5-A
20 Alarm Relay, n.o. Relay Board K5-B
21 Alarm Relay, n.c. Relay Board K5-C
22 Spare Not Used
23 Spare Not Used
24 Spare Not Used
25 + Remote Acknowledge Main Circuit Board J9-1
26 - Remote Acknowledge Main Circuit Board J9-2
27 Spare Not Used
28 Spare Not Used
29 Spare Not Used
30 Spare Not Used
31 Spare Not Used
32 Spare Not Used
33 Spare Not Used
34 Spare Not Used
35 Spare Not Used
36 Spare Not Used
37 Spare Not Used
n.o. = normally open
n.c. = normally closed
Relay contacts listed are in the shelf or de-energized state. Relays are operated in the fail-safe mode,
de-energizing to indicate a tripped condition.
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