Functional Description
CP307
Page 2 - 20
ID 34424, Rev. 3.0
P R E L I M I N A R Y
2.3.7
Optional Rear I/O Interface
The CP307 board provides optional Rear I/O connectivity for special compact systems. Some
standard PC interfaces are implemented and assigned to the front panel and to the rear
connector 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 necessary. The CP307 with Rear I/O is
compatible with all standard CompactPCI passive backplanes with Rear I/O support on the
system slot.
The CP307 Rear I/O provides the following interfaces (all signals are available on J2 only if the
board is ordered with Rear I/O functionality):
• 32-bit/33 MHz CompactPCI (J1) and Rear I/O (J2)
• Two USB 2.0 ports
• Two Gigabit Ethernet ports without LED signals
• Two SATA ports
• Two COM ports (3.3 V TTL level)
• VGA analog port
• One fan control input
• One PWM output
• Management and control signals
• Input for +5V standby power
Note ...
The pinout of the Rear I/O connector is not compatible with that of the CP302,
CP303, CP304, CP306, etc. For this reason, previously designed Rear I/O
modules cannot be used with the CP307.
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