Functional Description
ATCA-F140 Installation and Use (6806800M67J
)
84
4.9
SFP+ and QSFP+ Modules
The ATCA-F140 provides two SFP+ and two QSFP+ module receptacles on the front panel, the
SFP+ for base uplinks and the QSFP+ for fabric uplinks.
4.9.1
SFP+ Modules
The SFP+ signals RX_LOS, TX_FAULT and MOD_ABS are monitored for status by the BCM8727
PHY. Status changes will result in a service processor interrupt through the PHY's LASI signal.
The service processor can then access the module status registers inside the BCM8727. The
signals are also connected to the FPGA to allow faster detection of a loss of signal condition.
Each SFP+ signal TX_DIS can be driven by the BCM8727 to disable the SFP+ module's
transmitter (laser output).
Each SFP+ module's I2C signals are routed to the BCM8727 PHY which provides two separate
SFP+ I2C interfaces. The service processor uses these I2C interfaces, accessed through the PHY
management port, to read the module's on-board EEPROM information to determine type and
vendor specific information.
wc15-0
xe25
RTM SFP+
RTM ETH6
wc15-1
xe26
RTM SFP+
RTM ETH5
wc15-2
xe27
RTM SFP+
RTM ETH4
wc15-3
xe28
RTM SFP+
RTM ETH3
wc16-0
xe29
Front QSFP+
Front ETH1
wc16-1
xe30
wc16-2
xe31
wc16-3
xe32
wc17
xe33
Front QSFP+
Front ETH2
Table 4-4 Fabric Switch Mapping (Default AXP1440 Chassis Configuration)
(continued)
BCM56846 Physical Port
Port Name
Destination
Front Panel Label
