
FMC MasterFIP
FMC-masterFIP is an interface card for the
WorldFIP network
in an LPC FMC form-factor.
It is used as the physical layer interface of the
masterFIP
project.
Top view of the masterFIP board*
Bottom view of the masterFIP
board
The main components of the FMC-masterFIP board are:
- The FielDrive bus driver and FieldTR insulating transformer, both developed and sold by the company Alstom.
- A Lemo-0 connector, optionally used for the reception of an input synchronization trigger pulse, usually from CERN’s timing board CTRI.
- An EEPROM chip, loaded with IPMI FRU information (during PTS testing) so as to comply with the FMC standard.
- A 1-wire thermometer-unique-id-chip.
The schematics of the board, drawn in Altium, are available at CERN’s
EDMS. As the following table
shows, three versions of the board have been designed.
A list of issues that were being identified and led to the development
of a new version is available in the issues
tab of this
project.
Different board executions exist depending on the WorldFIP communication
speed: 31.25kbps, 1Mbps, 2.5Mbps, and 5Mbps; a set of ten components
differentiates the board executions.
IMPORTANT NOTE: There is an exception to the ANSI/VITA.57 standard:
- The FieldTR transformer is ~1 mm higher than what the standard permits. Due to that, the carrier board should have a cut out under the FMC board (see e.g. the SPEC board). While it is possible to mount FMC-masterFIP on a carrier without the cutout, it may create undesired mechanical stress (see mounting example of the FMC-nanoFIP that has the same problem FMC-nanoFIP on SVEC carrier).