Shelf Manager ACB-VI
Shelf Manager Connectors
27
R1.2, March 2018
Table 10: Backplane connector (X100) and (X102) pin description
-48V_A
-48 VDC supply A
-48V_B
-48 VDC supply B
AIR_FILT_PR
Air filter presence (grounded by air filter presence switch to detect a missing air filter)
AUX_PRES#
Reserved for future use
CROSS_SCL_A
Serial Clock of IPMB-A, cross-connected on Backplane to serial clock of IPMB-B of
other Shelf Manager
CROSS_SCL_B
Serial Clock of IPMB-B, cross-connected on Backplane to serial clock of IPMB-A of
other Shelf Manager
CROSS_SDA_A
Serial Data of IPMB-A, cross-connected on Backplane to serial data of IPMB-B of other
Shelf Manager
CROSS_SDA_B
Serial Data of IPMB-B, cross-connected on Backplane to serial data of IPMB-A of other
Shelf Manager
E-)
Ethernet interface (ETH0)
E-)
Ethernet interface (ETH0)
E-)
Ethernet interface (ETH1)
E-)
Ethernet interface (ETH1)
FAN_24V
Auxiliary 24 VDC (max. 100 mA) generated on Fan Trays (Voltage supply for opto-cou-
plers on Shelf Manager)
FAN_24V_RTN
Return path (Ground reference) for the auxiliary 24 VDC, generated on Fan Trays,
used also as reference ground for the fan control voltage
FT[0...2]_PRES#
Fan Tray present (grounded on Fan Tray when present)
FAN_SPEED
DC for Fan Speed Control (0 V to 10 V, 10 mA)
FAN_TACH[0...8]
Tachometer signals from Fan Trays
GND
logic ground
HA[0]
Hardware address of Shelf Manager
- grounded: Shelf Manager IPMI address is 0x10
- open: Shelf Manager IPMI address is 0x12
HA7
Hardware address of Shelf Manager
- grounded: Shelf Manager IPMI address is 0x10
- open: Shelf Manager IPMI address is 0x12
HLY_Input#
ACB-VI: Clock signal of the 2 wire Redundancy Interface between two redundant ACB-
VI shelf managers.
Formerly used on the ACB-V: Health input Shelf Manager (proprietary signal cross-
connected on Backplane to HLY_Output of other Shelf Manager)
HLY_Output#
ACB-VI: Data signal of the 2 wire Redundancy Interface between two redundant ACB-
VI shelf managers
Formerly used on the ACB-V: Health output Shelf Manager (proprietary signal cross-
connected on Backplane to HLY_Input of other Shelf Manager)
HS_EN
Tells the Shelf Manager that it is plugged in (Grounded on Backplane)
I2C_SCL_CH0
Master Only-I
2
C-bus Channel 0 to SAP
I2C_SCL_CH1
Master-Only I
2
C-bus Channel 1
I2C_SCL_CH2
Master-Only I
2
C-bus Channel 2
I2C_SCL_CH3
Master-Only I
2
C-bus Channel 3
I2C_SCL_CH4
Master-Only I
2
C-bus Channel 4
I2C_SDA_CH0
Master Only-I
2
C-bus Channel 0 to SAP
I2C_SDA_CH1
Master-Only I
2
C-bus Channel 1
I2C_SDA_CH2
Master-Only I
2
C-bus Channel 2
I2C_SDA_CH3
Master-Only I
2
C-bus Channel 3
