U L T R A F L E X H D P D U U S E R M A N U A L
Pin Number
Signal
Notes
1 Not-Used
2
Fan Speed Control 1
From J46 pin 4
3
PUMA ID bit
Jumper to J72 pin 4
4
Common
Jumper to J72 pin 3
5
48V current monitor
Output to SMC
6
48V current monitor return
Output to SMC
7 Not-Used
8 Not-Used
9 Not-Used
10 Not-Used
11
5V from SMC to PDU
Input from SMC
12 Not-Used
13
48V DC Enable
Input from SMC
14 Not-Used
15 Not-Used
16 Not-Used
17 Not-Used
18 Not-Used
19
48V DC power fault
Output to SMC
20
48V DC power fault return
Output to SMC
21 Not-Used
22 Not-Used
23 Not-Used
24
Fan Speed Control 1 return
From J46 pin 5
25
48V DC Enable return
Input from SMC
Table 3 – SMC connector Pinout (J72)
1.9
External Indicators Connection J71
The external indicator connector is located on the rear of the PDU next to the SMC connector; refer to
for location of external indicator connector and
for a detailed view. The pinout of the external
indicator connector is detailed in
Pin Number
Signal
1 AC
Available
2 Not-Used
3
Main Power On
4
48V DC On
5 Not-Used
6 AC
Available
return
7 Not-Used
8
Main Power On return
9
48V DC On return
Table 4 – J72 Pinout
708401 Rev B
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