Owner manual

AT8902 Hardware Description

Page 3 - 15 AT8902 User Guide

3.1.8 Power Supply

The power supply fulfills the PICMG 3.0 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): 65W

• Maximum payload power consumption (no RTM, no AMCs): 90W

• Management power consumption (suspend power): 7W

• Additional AMC payload power consumption: 75W

3.1.8.1 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 3-14: 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