Sfp+ And Qsfp+ Modules; Sfp+ Modules; Qsfp+ Modules; Table 4-5 Tested Sfp+ Modules - SMART Embedded Computing ATCA-F140 Series Installation And Use Manual

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 I
separate SFP+ I
through the PHY management port, to read the module's on-board EEPROM information
to determine type and vendor specific information.
The SFP+ module receptacles are designed to support standard SFP+ modules as well as
direct attach copper SFP+ modules less than 10m in length.
Table 4-5
SMART EC
Part Number
SFPP-MM-SR-LC
SFPP-SM-LR-LC
SFP-MM-SX-LC
SFPP-CO-RJ-45-3M 74752-1301
4.9.2

QSFP+ Modules

The QSFP+ signals INTL and MODPRSL are monitored for status by the BCM84740 PHYs
and the FPGA. 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
BCM84740. Each BCM84740 transceiver's LASI interrupt signal is routed to the FPGA to
generate an interrupt to the service processor. The TXONOFF signals for both BCM84740s
are controlled by the FIX_TXONOFF signals from the FPGA. This allows the FPGA to keep
the transmitters OFF until the software can come up and take control. The FPGA also
provides the QSFP+ LPMODE signals that control whether the module is in low-power
mode or high-power mode.
ATCA-F140 Series Installation and Use (6806800M67S)
2
C signals are routed to the BCM8727 PHY which provides two
2
C interfaces. The service processor uses these I
Tested SFP+ Modules
Vendor
Part Number
FTLX8571D3BCL Finisar
FTLX1471D3BCL Finisar
AFBR-57L5APZ
Functional Description
Vendor Description
10Gb/s 850nm multimode SFP+ transceiver
SFP+ 10GB LR Optical Module
Avago SFP optical module
Molex 3m direct attach copper SFP+ cable
2
C interfaces, accessed
103