Nuvo-2500 Series User’s Manual
Copyright © 2015 Neousys Technology Inc. All Right Reserved.
Page 54 of 154
2.5.2 Cassette of Nuvo-2500E and Nuvis-2520at-E
Figure 27: Cassette and PCIe Backplane
The expansion Cassette of Nuvo-2500E and Nuvis-2520at-E contains a backplane with a
x4 PCI Express connector. It runs 1-lane, Gen2 PCI Express signals to provide a maximal
4GB/s bandwidth. The Expansion Cassette supports 4A@12V rated current for a PCI
Express add-on card with higher power consumption. You can also get the 12VDC from the
on-board power connectors if necessary. This connector shares the 12VDC with the add-on
card.
Table 24: Connectors on PCIe Backplane
Item
Connector
Function Description
1
x4 PCI
Express
x4 PCI Express connector that runs 1-lane, Gen2
signal. Compatible with x4 and x1 PCI Express add-on
card.
2
12VDC Fan
Power
3-pin, 2.54mm pitch power connector for supplying
12VDC to the optional fan.
Pin
Description
1
Reserved
2
12V
3
GND
3
5/12VDC
Power
4-pin, 2.0mm pitch wafer connector for supplying
5/12VDC
Pin
Description
1
12V
2
GND
3
GND
4
5V (2A rated Current)