Intel MPCMM0002 manual Power Connector Pinouts, Pin Signal Purpose Pin Length

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
			Return path for A feed (mate last, break first pin)
	A1	-48VRTN_A_MLBF	that allows Hot Swap controller to turn system	Short
			power on and off
			Return path for B feed (mate last, break first pin)
	A3	-48VRTN_B_MLBF	that allows Hot Swap controller to turn system	Short
			power on and off
	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

	Intel NetStructure® MPCMM0002 Chassis Management Module
July 2007	Hardware TPS
Order Number: 309247-004US	33