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Intel NetStructure
®
MPCMM0002 Chassis Management Module
July 2007 Hardware TPS
Order Number: 309247-004US 33
Rear Connections—MPCMM0002 CMM
The pinout of each CMM power connector is shown in Table 6.
Table 6. Power Connector Pinouts
Pin Signal Purpose Pin Length
B12, D12 SGND Shelf ground, mostly for safety Long
A5, C5, E5 GND Logic ground for signal returns Long
C1, E1 -48 V_A A power feed Medium
B2, D2 -48 V_B B power feed Medium
C3, E3 -48 VRTNA Return path for A feed Medium
B4, D4 -48 VRTNB Return path for B feed Medium
A1 -48VRTN_A_MLBF
Return path for A feed (mate last, break first pin)
that allows Hot Swap controller to turn system
power on and off
Short
A3 -48VRTN_B_MLBF
Return path for B feed (mate last, break first pin)
that allows Hot Swap controller to turn system
power on and off
Short
D6 PWRALRM_NO Power alarm relay, normally open Medium
E9 MNRALRM_COM Minor alarm relay, common path Medium
C9 MJRALRM_COM Major alarm relay, common path Medium
A9 CRTALRM_COM Critical alarm relay, common path Medium
B6 PWRALRM_COM Power alarm relay, common path Medium
E7 MNRALRM_NO Minor alarm relay, normally open Medium
C7 MJRALRM_NO Major alarm relay, normally open Medium
A7 CRTALRM_NO Critical alarm relay, normally open Medium
E11 MNRALRM_NC Minor alarm relay, normally closed Medium
C11 MJRALRM_NC Major alarm relay, normally closed Medium
A11 CRTALRM_NC Critical alarm relay, normally closed Medium
D10 MNRRES+ Minor alarm reset, positive polarity Medium
B10 MNRRES- Minor alarm reset, negative polarity Medium
D8 MJRRES+ Major alarm reset, positive polarity Medium
B8 MJRRES- Major alarm reset, negative polarity Medium