Shelf Manager ACB-VI
Shelf Manager Connectors
28
R1.2, March 2018
I2C_SDA_CH4
Master-Only I
2
C-bus Channel 4
I2C_PWR_A
3.6 V (max. 500 mA) generated on Shelf Manager, redundant path A for Shelf I
2
C-
devices on Fan Trays, PEMs and SAP
I2C_PWR_B
3.6 V (max. 500 mA) generated on Shelf Manager, redundant path B for Shelf I
2
C-
devices on Fan Trays, PEMs and SAP
INT#
External Interrupt request (Master Only I
2
C-bus)
ACTIVE
This ShMM is in active mode
IPMB_SCL_A_[1...16]
Serial Clock, IPMB-A
IPMB_SCL_B_[1...16]
Serial Clock, IPMB-B
IPMB_SDA_A_[1...16]
Serial Data, IPMB-A
IPMB_SDA_B_[1...16]
Serial Data, IPMB-B
NC
not connected
PEM[A, B]_PRES
PEM [A, B] presence signal (grounded on PEM when present)
PRES_1#
ACB-VI: Only used for transition from ACB-V to ACB-VI in a live chassis
Formerly used on the ACB-V: Shelf Manager board presence signal (proprietary signal
cross-connected on Backplane to PRES_GND of other Shelf Manager)
PRES_GND#
ACB-VI: Only used for transition from ACB-V to ACB-VI in a live chassis
Formerly used on the ACB-V: Shelf Manager presence ground (proprietary signal
cross-connected on Backplane to PRES_1# of other Shelf Manager)
PWM_C
Opto isolated PWM signal for fan speed control, collector
U
CE0
= max. 70 V, I
max
= 2 mA
PWM_E
Opto isolated PWM signal for fan speed control, emitter, connected to FAN_24V_RTN
on Backplane
SAP_PRES
Presence signal of SAP (Grounded on SAP when present)
SHELF_GND
Shelf Ground
SWR_Input#
ACB-VI: Only used for transition from ACB-V to ACB-VI in a live chassis
Formerly used on the ACB-V: Switchover signal from the other Shelf Manager (proprie-
tary signal cross-connected on Backplane to SWR_Output of other Shelf Manager)
SWR_Output#
ACB-VI: Only used for transition from ACB-V to ACB-VI in a live chassis
Formerly used on the ACB-V: Switchover signal to the other Shelf Manager (proprie-
tary signal cross-connected on Backplane to SWR_Input of other Shelf Manager)
UART0_CD
Serial Interface 1 Carrier Detect
UART0_CTS
Serial Interface 1 Clear To Send
UART0_DSR
Serial Interface 1 Data Set Ready
UART0_DTR
Serial Interface 1 Data Terminal Ready
UART0_RI
Serial Interface 1 Ring Indication
UART0_RTS
Serial Interface 1 Request To Send
UART0_RXD
Serial Interface 1 Receive Data
UART0_TXD
Serial interface 1 Transmit Data
UART1_RXD
Serial Interface 2 Receive Data (not used in Schroff Shelves)
UART1_TXD
Serial interface 2 Transmit Data (not used in Schroff Shelves)
USB0_DP/DM
USB interface, cross-connected on Backplane toother Shelf Manager
USB1_DP/DM
USB interface, cross-connected on Backplane toother Shelf Manager
VRTN_A
Voltage return supply A
VRTN_B
Voltage return supply B
