Owner manual

AT8902 Hardware Description
Page 3 - 28 AT8902 User Guide
The main building blocks of the AM4310 are:
•XFP Ports
• XAUI to XFI Transceivers
•IPMI
• Power Supply
3.3.1 XFP Ports
The AMC module contains two XFP cages with an electrical interface as described in XFP
specification Rev. 4.0. XFP modules are not provided with the AM4310 and have to be obtained
separately. The following modules have been successfully tested with the AM4310.
Table 3-23: Recommended XFP Modules
3.3.2 XAUI to XFI Transceivers
The two XAUI to XFI transceivers have a 4-lane XAUI interface with 2.5MHz MDIO manage-
ment interface. They incorporate a fully-integrated clock multiplication unit (CMU), clock and
data recovery (CDR), SerDeses and limiting amplifiers. The transceiver operates in asynchro-
nous clock mode which is provided by the elastic buffers. For configuration options of the trans-
ceivers, refer to the AT8902 CLI Reference Manual.
On the AMC edge connector, AMC channels 4 to 7 map to the XAUI port of the transceiver for
XFP1 and AMC channels 8 to 11 to the transceiver XAUI port for XFP2. The user definable
channel 12 contains the MDIO control connection between the fabric switch and the AMC’s
XAUI to XFI transceivers.
XFP Vendor Modus Wave lenght Distance
Fiberxon
FTM-33X1C-X10G
Single mode 1310 mm 10km
Finisar
FTRX-1611-3
Single mode 1550 mm 40 km
OpNext
TRF5012FS-LA000
Single mode 1310 mm 2 km
Warning!
The XFP cages have heatsinks which can dissipate 1.5W with no airflow. If the
XFP module consumes more than 1.5W (up to 3.5W), the user has to ensure
sufficient airflow to cool the XFP module. Otherweise, the modules may be
damaged.