Connect options.
Mini-WR provides the following connections:
Castellated edge contact
2 pairs of differential GTP pairs are linked to the Castellated edge
contact. SI can be fulfilled by solder the Mini-WR to the carrier board.
Special PCB cut-out should be implemented on the carrier board due to
the R/C on the bottom of the Mini-WR.
GMII signal group, UART, SFP control signals and few debug IO are also
available.
Mezzostak connector
Mezzostak - High speed self mating board-2-board
connector
(10106813-063112LF) from Amphenol FCI are applied on Mini-WR. Stack
height from 3mm to 7mm can be adjusted choosing different types.
Another 2 Pairs of GTP differential signals are linked to the Mezzostak
connector, and flyby further to the gold-finger connector.
When use the Mezzostak connector, the additional trace to the
gold-finger acts as branch. Although our test shows that the signal can
suffer the small branch, it is still recommended to remove gold-finger
zone when the Mezzostak connector is used (need to contact the
producer).
The 60Pos. Mezzostak connector also provides signals for GMII, UART and
JTAG.
Gold-finger connector
The signals connected to 40Pos. Gold-finger are subset of those on the
Mezzostak connector, without JTAG, UART and few data signals of the
RMII. The Mezzostak is in the trace path and cause no interference.
When use the gold-finger, 3 types of MEC1 series
connector
can be used.
|MEC1-120-02-L-D-A| Vertical |
|MEC1-120-02-L-D-RA1-SL| Right Angle|
|MEC1-120-02-L-D-EM2| Edge mount|