OSS OSS-581 Gen5 Backlane User manual

INSTALLATION GUIDE
OSS-581 Gen5 Backplane
OSS-581 Gen5 Backplane
www.onestopsystems.com

One Stop Systems
OSS-581 Gen5 BP 2
Table of Contents
1Getting Started ...............................................................................................................3
2Unpacking......................................................................................................................3
3Backplane Information ......................................................................................................4
3.1 Upstream and Downstream Slots .................................................................................................... 4
3.2 Slot LEDs ................................................................................................................................ 4
3.3 Board LEDs.............................................................................................................................. 5
3.4 Slot Type................................................................................................................................ 6
3.5 ARF6 Connectors....................................................................................................................... 6
3.6 PS_ON ................................................................................................................................... 6
3.7 Block Diagram.......................................................................................................................... 7
3.8 Slot Number and Port Mapping....................................................................................................... 8
3.9 Power Consumption ................................................................................................................... 9
4Hardware Requirements ................................................................................................. 10
4.1 Pinouts .............................................................................................................................11
5Setup / Installation ......................................................................................................... 12
5.1 Install Jumper / Shunt on JP3 ......................................................................................................12
5.2 Plugin ARC Cables ....................................................................................................................12
5.3 Set Backplane Dipswitches ..........................................................................................................13
5.4 Connect Power Cables ...............................................................................................................14
6Install Adapter Card........................................................................................................ 15
6.1 Set Target Card Dipswitches ........................................................................................................15
6.2 Set Host Card Dipswitches...........................................................................................................15
6.3 Install Target Card....................................................................................................................15
6.4 Host Card Installation ................................................................................................................16
7Cable Installation ........................................................................................................... 17
8Powering UP the unit ...................................................................................................... 18
9Hardware Check ............................................................................................................ 18
9.1 Verify Board LEDs.....................................................................................................................18
9.2 Verify Adapter Card LEDs............................................................................................................19
10 Mounting the backplane ................................................................................................ 20
11 Post Installation............................................................................................................. 21
11.1 Linux ...................................................................................................................................21
11.2 Windows ...............................................................................................................................24
12 How to Get More Help ..................................................................................................... 27
12.1 Contacting Technical Support.......................................................................................................27
12.2 Returning Merchandise...............................................................................................................27
12.3 Third Party Hardware & Software Support Policy ................................................................................27
12.4 Online Support Resources ...........................................................................................................27

One Stop Systems
OSS-581 Gen5 BP 3
1 Getting Started
This is section is all about the steps on how to install the backplane. You will find instructions for the following procedures:
•Unpacking
•Upstream and Downstream Slots
•Hardware Requirements
•Backplane Installation
•Cable Adapter Card Installation
•Link Cable Installation
•Powering Up the unit / system
•Verify Device Installation
2 Unpacking
Check and identify the standard supplied item. Inspect the backplane for physical defects and damages.
•To achieve superior performance and reliability it is recommended to use a certified and compatible set of an OSS
Gen5 adapter cards (aka: Host Interface Board) and cables.
•The OSS backplane is designed and programmed to work with OSS Gen5 adapter cards (also backward compatible with
Gen4 adapter card).

One Stop Systems
OSS-581 Gen5 BP 4
3 Backplane Information
3.1 Upstream and Downstream Slots
•Upstream Slot: Also known as target slot. Designated slot for the Target adapter cards only. Slot0 is the default slot
for the Upstream slot.
•Downstream Slots: These are PCIe card slots #1, #2, #3, #, #5, #6 and #7. Do not use the downstream slots for HIB
Target card.
•Option Slot: Slot 8, when configured accordingly, it will operate either in an Upstream mode or Downstream mode.
3.2 Slot LEDs
Item Name Description When Lit (Solid Green or Blinking) When Off
1 Target Slot LED Upstream Slot LED Solid = Gen5 Link OFF - Not Linked / No Card
present in the slot
Blink 2Hz = Gen4 Link
2 Downstream LED PCIe slot LEDs Solid = Gen5 Link OFF - Not Linked / No Card
present in the slot
Blink 2Hz = Gen4 Link
3 Aux Power LED Auxiliary Board power LED This is GREEN, denotes existence of
auxiliary power +5VAUX
Board is at fault / error

One Stop Systems
OSS-581 Gen5 BP 5
3.3 Board LEDs
Ref Des Color Definition
CR1 Red Fatal Error
CR2 Red System in Reset
D1 Green Link Status Man Port
D3 Green Link Status Daisy Chain
D4 Green LED0: All Power Good
D5 Green LED1: Flashing Pattern
D6 Green FPGA Config
D10 Green Link Status Slot 0
D11 Green Link Status Slot 1
D12 Green Link Status Slot 2
D13 Green Link Status Slot 3
D14 Green Link Status Slot 4
D15 Green Link Status Slot 5
D16 Green Link Status Slot 6
D17 Green Link Status Slot 7
D18 Green Link Status Slot 8
D19 Green AUX Power Good

One Stop Systems
OSS-581 Gen5 BP 6
3.4 Slot Type
Slot Type: Closed-ended PCIe slot / connector, all the slots are x16 mechanical.
•Six x8 electrical slots (slots 1, 2, 3, 4, 5 and 6)
•Three x16 electrical slots (slots 0, 7 and 8)
3.5 ARF6 Connectors
ARF6 Connector - For connecting ARC6 cable to daisy chain two backplanes together and to create a bridge or connection
between SLOT 8 and the PCIe switch.
3.6 PS_ON
The board has a two-pin connector for placing a shunt / jumper that allows the backplane to be ON all the time when an ATX
power supply is switched ON. See photos below for the location of the JP3 connector on the backplane. You can buy the shunt
from any online hardware stores.

One Stop Systems
OSS-581 Gen5 BP 7
3.7 Block Diagram

One Stop Systems
OSS-581 Gen5 BP 8
3.8 Slot Number and Port Mapping
Each slot on the OSS backplane is mapped to a PCIe port on the PCIe switch. Port mapping is hard-coded, it is fixed. No means of
changing or modifying it.
PCIE Slot Mapping Port Mapping (PCIe Switch) Notes
Slot 0 80
Slot 1 96
Slot 2 104
Slot 3 120
Slot 4 112
Slot 5 40
Slot 6 32
Slot 7 16
Slot 8 0 Cabled from Daisy Chain
(DC) Port
DC Port 0
Main Port 128

One Stop Systems
OSS-581 Gen5 BP 9
3.9 Power Consumption
OSS-581 with no PCIe cards installed:
•Max Power 100W (calculate ~80W, but adding some margin)
OSS-581 with qty 9, 25W PCIe cards installed:
•Max Power 400W (calculate ~330W but adding margin and factoring in efficiency of
3.3V power supplies)
If PCIe cards are more than 25W, then the power goes up accordingly.
Note: all OSS-581 power comes from +12V (except for ~5W max of +5Vsb).

One Stop Systems
OSS-581 Gen5 BP 10
4 Hardware Requirements
1. OSS Gen 5 Target and Host Cards
2. Gen 5 PCIe x8 Cable (qty: 2): QSFP-DD Cables
3. Gen5 or Gen4 x16 PCIe slot (computer motherboard)
4. ATX Power Supply: Minimum of 400 Watt
Gen5 Target and Host Card
QSFP-DD Cables
ATX Power Supply with 24pin power cable and at least two available EPS power cable. The EPS power cable is also known as CPU
power cable that has 8pin power connector

One Stop Systems
OSS-581 Gen5 BP 11
4.1 Pinouts
ATX 24pin connector pinout
12VInput Connector Pinout
5V Stand-by Connector Pinout

One Stop Systems
OSS-581 Gen5 BP 12
5 Setup / Installation
5.1 Install Jumper / Shunt on JP3
5.2 Plugin ARC Cables
Connect the Arc cables to the Arf connectors onboard the backplane.
Follow the diagram below for connecting the Arc Cables.

One Stop Systems
OSS-581 Gen5 BP 13
Connect the first ARC cable to port LANES 8-15
Connect the 2nd Arc cable to Port LANES 0-7
5.3 Set Backplane Dipswitches
Configure the backplane SW Dipswitches. Set the switches using the settings shown from the photo below.

One Stop Systems
OSS-581 Gen5 BP 14
5.4 Connect Power Cables
Plugin the supplied power adapter cable (24pin-to-4pin cables). Connect the two power cables to the backplane, see photos
below.
Connect the other end of the cable to the ATX power supply 24pin power connector.
From the ATX power supply, connect the 8pin power cable to the remaining 12v input power connector on the board.
Below photo shows all the power cables attached to the backplane.

One Stop Systems
OSS-581 Gen5 BP 15
6 Install Adapter Card
6.1 Set Target Card Dipswitches
Set the dipswitches on the card to target mode, see photo below for correct settings
6.2 Set Host Card Dipswitches
Set the dipswitches on the card to host mode, see photo below.
6.3 Install Target Card
Use the designated Target Slot / Upstream Slot on the backplane when installing the card.
•See photo below for the correct default location of the Target slot (Upstream Slot).
Plugin the target card in the upstream slot on the backplane.

One Stop Systems
OSS-581 Gen5 BP 16
As shown below, the OSS target card is installed in Upstream slot 0.
6.4 Host Card Installation
The host card can only be installed in the computer motherboard’s PCIe slot. Install the Host card in an x16 Gen5 PCIe slot.

One Stop Systems
OSS-581 Gen5 BP 17
7 Cable Installation
Plugin the two cables to the target card. See photos below for the correct orientation of the cables when connecting to the card.
Connect the other end of the cables to the host adapter card.

One Stop Systems
OSS-581 Gen5 BP 18
8 Powering UP the unit
•Power ON the Gen5 backplane first.
•Turn ON the host computer
9 Hardware Check
9.1 Verify Board LEDs
After powering UP the host computer, the Target SLOT LED on the backplane will illuminate as solid green as shown below.
Check the board LEDS. A fully operational back plane will illuminate the following LEDs.
•D4 &D5
•D19: AUX power, solid green.

One Stop Systems
OSS-581 Gen5 BP 19
9.2 Verify Adapter Card LEDs
After powering ON the host computer, it will instantly power UP the target device.
•A fully operational adapter cards will illuminate the following LEDs (on both Host and Target cards).

One Stop Systems
OSS-581 Gen5 BP 20
10 Mounting the backplane
To install the backplane in an enclosure, use the provided screws and plastic washer (see photo below). Check the kit that is
shipped with the unit, the screws and plastic washers are included.
For installing / mounting the backplane in the enclosure, follow the steps below.
1. Slide the backplane into place. Align the mounting holes to the standoffs.
2. Place the plastic washer on top of the mounting hole.
3. Install the screw to secure the backplane down.
Start with the corners, holding the board firmly, so that it screws-holes line up. When screwing the screws in, don’t use too much
pressure as this can break the board. You want the screws properly tight enough to secure the backplane, but not so tight that
can crack the board.
•Once you’ve done the corners, put screws in the remaining holes.