Host Interface Board; Host Expansion Board; Conceptual Architecture - One Stop Systems Max Express OSS-KIT-EXP-4500 User Manual

1.b. Host interface board
The PCIe x4 host Interface board installs in a PCIe x4, x8, or x16 PCIe slot of a host system and cables down to a PCIe expansion
system or other PCIe x4 device.
Slo t Cover
(Al so available in
low profile height)
Power on /
Cable
Ready
PCIe x4
Connect
1.c. Host Expansion Board
The Host Expansion Board (HEB2) fits into the system slot of the CPCI chassis and connects through a high-speed PCIe x4 cable
to an upstream host. The HEB2 expands the PCI Express bus from a PCIe slot to a CompactPCI system at 20Gb/sec.
PCIe x4
connector
Locking card
connector
1.d. Conceptual architecture
PCIe x4 cable
One Stop Systems, Inc.
Rev. A
3.35"
Upstream host
adapter
2.713"
Downstream
X4 PCI
Express
Cable
Connector
Downstream host
expansion board (HEB2)
Clock*
LVPECL
Clock Buffer
X4
PCIe Signal
PCIe
Redriver
X4
PCIe Signal
PCIe
Redriver
CPRS
NT#
LEDs
Cable
P resent/ Pw r LEDs
PCIe lane
status
*Clock direction shown
in Host configuration
Card edge connector
PCIe backplane in
the host enclosure
Compact PCI backplane
OSS-KIT-EXP-4500
Page 4
Clock
*
X4
PCIe
X4
PCIe
+3.3v
Upstream
X4 PCI Express
Card Edge
Connector