One Stop Systems
4U Pro 16 Slot
12
1.8
Backplane
Item
Name
Description
1
12V Input Power
12V input power for the 538 board. Not to be used for external GPU aux
2
ARF 6 Top Connectors
For connecting ARC 6 cables
between ”Option slot” and PEX switch
3
I2C and temp sensors interface
Connector for I2C and temp sensors interface to the power backplane
4
Ethernet port
Not used
5
Passive Heat sink
Moves
heat
away from the PCIe chip
6
PCIe Downstream Slots / Port
PCIe card slot for 3
rd
Party PCIe cards
7
Option Slot
Configurable card slot to operate either as an Upstream or Downstream modes
8
Card Slot LED
LED status indicator when slot is populated or not. Solid green when card is present. Off, when no
card
9
Target Slot LED
LED status indicator for Target card. Solid green when Gen 4 adapter card is installed
10
Upstream Port / Target Slot
Designated slot for Target card only
11
Dip Switches
For slot configuration
12
Board LEDs
LED status indicator for the board
13
FPGA Connector
FPGA Programming connector
14
PS_ON
Enable to force power ON the backplane by placing a jumper on the connector
15
Temperature Sensor
Sensor for detecting temperature on the board
16
24-pin ATX Power Connector
For connecting ATX Power Supply
17
PCIe Switch Port
PCIe switch management port, optional
18
ARF 6 Bottom Connectors
For connecting ARC 6 cables
between ”Option slot” and PEX switch
19
Screw-Mounting Holes
For securing the board on to an enclosure
