ADLINK Technology cPCI-3920 Series, User Manual

Page: 57 / 106

Functional Description 47
CompactPCI J2 Pin Assignment
The cPCI-3920 board provides Rear I/O connectivity for special
compact systems. Some standard PC interfaces are imple-
mented and assigned to the front panel and to the rear connec-
tor J2.
When the Rear I/O module is used, the signals of some of the
main board/front panel connectors are routed to the Rear I/O
module interface. Thus the Rear I/O module makes it much
easier to remove the CPU in the rack as there is practically no
cabling on the CPU board.
For the system Rear I/O feature a special backplane is neces-
sary. The cPCI-3920 with Rear I/O is compatible with all stan-
dard CompactPCI passive backplanes with Rear I/O support
on the system slot.
The cPCI-3920 Rear I/O provides the following interfaces:
X
32-bit/33 MHz CompactPCI (J1) and Rear I/O (J2)
X
Two USB 2.0 ports
X
Two Gigabit Ethernet ports without LED signals
X
Three SATA ports
X
Two COM ports
X
Seven GPIOs
Note:
To support the Rear I/O feature a special backplane is nec-
essary. Do not plug a Rear I/O configured board in a non-
system slot Rear I/O backplane. Failure to comply with the
above will result in damage to your board.