SMART 6806800K30J, Инструкция по установке и использованию

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42 RTM-ATCA-F125 Installation and Use (6806800K30J)
Functional Description
Functional Description
4.4.6 SFP+ Connection
The SFP+ cage accepts industry standard SFP+ optical modules. The SFP+ cage is
backwards compatible with 1GB optical or copper SFP modules. Refer to the ATCA-F125
Installation and Use Manual for a list of SFP devices tested with this product. The SFP+
connector assignment for the 10GB serial interface is described in
Table 4-7
.
4.4.6.1 I2C Bus
The SFP+ I2C bus signals (I2C_SDA and I2C_SCL) from each SFP+ site are individually
connected to the corresponding BCM8747 which includes a mechanism to allow access to
the port through the phy management channel.
4.4.6.2 SFP+ Status Signals
The SFP+ status signals, MOD_ABS, TX_FAULT and LOS, are individually connected to
the corresponding BCM8747 which monitors them. The signals are also connected to the
RTM FPGA to allow fast detection of a loss of signal condition. Refer to
Section 4.6, FPGA
on page 43
for further details.
4.4.6.3 SFP Control Signals
The SFP+ TX_DISABLE signals are individually connected to the corresponding BCM8747
which drives them under software control.
Table 4-7 SFP+ Connector Pin Assignment
Pin Signal Pin Signal
1 GND 11 GND
2 TX_FAULT 12 RX-
3 TX_DISABLE 13 RX+
4 I2C_SDA 14 GND
5 I2C_SCL 15 VCCr (+3.3V)
6 MOD_ABS 16 VCCt (+3.3V)
7 RS0 17 GND
8 LOS 18 TX+
9 RS1 19 TX-
10 GND 20 GND