Specifications

PCIe/104 and PCI/104-Express Specification Revision 3.0 February 17, 2015 Page 38
Figure 4-5 illustrates a Host with a PCIe/104 Type 1 connector going down and a PCIe/104 Type 2 connector going up.
The Host does not have the top and bottom busses connected. Type 1 and Universal Devices are stacked below the Host.
Type 2 and Universal Devices are stacked above the Host.
PCIe/104 T
yp
e 1PCIe x16 Peri
p
heral Module
PCIe x16 Device
PCIe/104 Universal PCIe x1 Peripheral Module
Processor
Chi
p
set
0.600 inches
(15.24 mm)
PCIe/104 Type 2 SATA Peripheral Module
SATA Drive
Memor
y
0.600 inches
(15.24 mm)
0.600 inches
(15.24 mm)
0.600 inches
(15.24 mm)
PCIe/104 CPU Module T
yp
e 2 U
p
, T
yp
e 1 Down
PCIe x1 Device
PCIe/104 Universal PCIe x1 Peri
p
heral Module
PCIe x1 Device
Type
1
Type
1
Type
2
Type
2
Type
2
Type
1
Figure 4-5: PCIe/104 Type 1 Stack-down and Type 2 Stack-up Configuration Example