Artesyn RTM-ATCA-F140 Installation and Use (May 2014) - Manual (Page 38)

Functional Description
RTM-ATCA-F140 Installation and Use (6806800M97E) 38
4.3.3.1 I2C Bus
The SFP I2C bus signals (I2C_SDA and I2C_SCL) from each SFP site are individually connected
to the RTM FPGA. An I2C controller within the FPGA allows the front-blade service processor to
access these ports to obtain SFP status and diagnostic information. Refer to the
Chapter 4,
FPGA, on page 48 for details.
4.3.3.2 SFP Status Signals
The SFP status signals, MOD_ABS, TX_FAULT and LOS, are individually connected to the RTM
FPGA to allow monitoring by the service processor. Refer to the
Chapter 4, FPGA, on page 48
for details.
4.3.3.3 SFP Control Signals
The SFP control signals, TX_DISABLE and RATE_SEL, are individually connected to the RTM
FPGA to allow control by the service processor. Refer to the
Chapter 4, FPGA, on page 48 for
details.
4.4 10 Gbps SFP+ Ports
The RTM-ATCA-F140 provides a two 10Gbps SFP+ module sites connected to the base switch
on the front blade.