
AT8402 Hardware Description
Page 3 - 18 AT8402 User Guide
3.1.9 Power Supply
The power supply fulfils the PICMG3.0 requirements and has the following characteristics:
• Full operation at -38VDC to -72VDC
• No damage inflicted to board at 0VDC to -75VDC
• Typical payload power consumption (no RTM, no AMCs): 40W
• Maximum payload power consumption (no RTM, no AMCs): 51W
• Management power consumption (suspend power): 7W
• Additional AMC payload power consumption: 161W
3.1.9.1 Power Connector
The power connector supplies the board with two 48V redundant rails, digital ground and chas-
sis ground. It also provides the redundant IPMB Shelf Manager connection.
Table 3-16: Power Connector (P10)
Signal Pin Pin Signal
N.C. 1 2 N.C.
N.C. 3 4 N.C.
HA0 5 6 HA1
HA2 7 8 HA3
HA4 9 10 HA4
HA6 11 12 HA5
SCL_A 13 14 SDA_A
SCL_B 15 16 SDA_B
MT1_TIP(N.C.) 17 18 MT2_TIP(N.C.)
RING_A(N.C.) 19 20 RING_B(N.C.)
MT1_RING(N.C.) 21 22 MT2_RING(N.C.)
RRTN_A(N.C.) 23 24 RRTN_B(N.C.)
SHELF_GND 25 26 LOGIC_GND
ENABLE_B 27 28 VRTN_A
VRTN_B 29 30 EARLY_A
EARLY_B 31 32 ENABLE_A
-48V_A 33 34 -48V_B
4
16
20
24
26
28
32
31
34
1
13
25
29
27
30
33
17
21
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