OSS OSS-KIT-EXP-9000-2M User manual

User Manual,

PCIe x16 Gen 2 Expansion Kit

OSS-KIT-EXP-9000-2M

One Stop Systems OSS-KIT-EXP-9000-2M

Specifications subject to change without notice Page 2

Table of Contents

1. Overview

1.a. Description..........................................................................................................................................3

2. Component Identification

2.a. Host cable adapter..............................................................................................................................4

2.b. Target adapter.....................................................................................................................................4

2.c. Specifications ......................................................................................................................................5

2.d. OSS 2-slot backplane..........................................................................................................................5

3. Installation Instructions

3.a. Installing the adapter kit ......................................................................................................................6

3.b. Using the 2-slot backplane..................................................................................................................6

3.c. Using any third party device................................................................................................................6

3.d. Removing PCIe cable..........................................................................................................................7

4. Technical Information

4.a. Signal Adjustment ...............................................................................................................................8

4.b. Pin assignments..................................................................................................................................9

5. Ordering Information……………………………………………………………………………….15

One Stop Systems OSS-KIT-EXP-9000-2M

Specifications subject to change without notice Page 3

1.a. Description

The PCIe x16 Gen 2 expansion kit is used to extend the PCI Express bus from a host server to an external PCIe I/O board. The

host adapter card inserts into a PCIe slot of the server. It then cables to a downstream target adapter card. The target adapter card

inserts in the OSS Gen 2, 2-slot backplane. The I/O board then inserts in the other slot of the backplane.

The host adapter installs in the PCIe x16 slot of the host motherboard. It then cables to the target adapter card and installs in the

appropriate slot of the 2-slot backplane. A third party I/O card installs in the second slot of the 2-slot backplane. The

I/O card then appears to the host system as host of that system.

Gen 2 products operate at 5Gb/s per lane, or twice the bandwidth of Gen 1 products. Therefore, PCIe x16 Gen 2 products operate

at 20Gb/s when inserted in a 16 slot.

PCIe 2-slot backplane

Host adapter

Target adapter

PCIe x16 cable

One Stop Systems OSS-KIT-EXP-9000-2M

Specifications subject to change without notice Page 4

2. Component Identification

2.a. Host cable adapter

The host adapter inserts into the host computer’s PCIe x16 slot. The host cable adapter (Part # OSS-PCIe-HIB25-x16-H) allows

communication between a processor and an I/O point.

2.b. Target cable adapter

The target adapter (Part# OSS-PCIe-HIB25-x16-T) inserts into the slot closest to the ATX power connector of the 2-slot backplane.

LVPECL

Clock Buffer

Downstream

X16 PCI Express

Cable Connector

Upstream

X16 PCI Express

Card Edge Connector

PCIe Signal

Redriver

PCIe Signal

Redriver

LEDs

Cable Present/

Pwr

X16

PCIe Rx

X16

PCIe Rx

CPRSN

+3.3v

Clock*

LEDs

PCIe lane

status

X16

PCIe Tx

X16

PCIe Tx

*Clock direction shown in Host

configuration

Note: This area is populated

on target board

Slot Cover

(Also

available in

low profile

height)

PCIe x16

Connector

One Stop Systems OSS-KIT-EXP-9000-2M

Specifications subject to change without notice Page 5

2.c. HIB25 x16 Specification

2.d. OSS 2-slot backplane

The 2-slot backplane can be installed in a separate enclosure to support the target adapter and an I/O card.

Note: See section 4 Technical Information for slot pin outs.

Electrical/Mechanical Specifications

Form Factor:

PCIe x16 add-in card

Dimensions (H x L):

6.125 x 2.75 inches

Front Panel Connectors:

One PCIe x16 cable connector

Front Panel Indicators:

Power On / Cable Present LEDs

Power Consumption (designed to meet the following conditions) 3.75W typical, [email protected]

Operating Environment (designed to meet the following conditions)

Temperature Range:

0° to 50°C (32° to 122°F)

Relative Humidity:

10 to 90% non-condensing

Shock:

30g acceleration peak (11ms pulse)

Vibration:

5-17 Hz 0.5” double amplitude displacement; 7-2000Hz, 1.5g acceleration.

Redriver: Pericom PI2EQX5804

Agency Compliance: UL60950.FCC Class B, CE safety and emissions

ATX power connector

Target Slot

Endpoint Slot

Power supply on header

One Stop Systems OSS-KIT-EXP-9000-2M

Specifications subject to change without notice Page 6

3. Installation Instructions

3.a. Installing Adapter Kit

1) Insert the upstream host cable adapter into an appropriate PCIe slot of the host computer.

3.b. When using with the 2-slot Backplane:

2) Insert the downstream target cable adapter into the PCIe slot closest to the white ATX power connector, labeled

TARGET on the 2-slot backplane.

3) Connect the 2-slot backplane to an ATX power supply separate from the host system power supply. Note:

Sometimes an external load is necessary for ATX power supplies to regulate properly. (I.e. –connecting hard

drive power)

4) Insert the PCI add-in board in the ENDPOINT slot on the 2-slot backplane.

5) Connect the PCIe cable to both the upstream and the downstream cable adapters.

6) Turn on the power supply to the 2-slot backplane. The 3V aux LED will light. NOTE: The power supply and 2-slot

backplane will not power up at this time.

7) Turn on the host system. Signals across the PCIe cable will cause the 2-slot backplane to power up. The power

and cable LEDs on the upstream and downstream cable adapters will light.

3.c. When using with any third party device:

1) Install the downstream board into the appropriate PCIe slot.

2) Connect the external power source (separate from the host system power supply) to the downstream device if

necessary.

3) Connect the PCIe cable to both the upstream host adapter and the downstream device.

3.d. Removing PCIe cable:

1) To remove PCIe cable pull back on green thumb tab to release metal pins and gently separate.

One Stop Systems OSS-KIT-EXP-9000-2M

Specifications subject to change without notice Page 7

4. Technical Information

The transmit and receive signals on the OSS-HIB25-x16 are driven and conditioned by Pericom redriver chips. Adjustments can be

made to equalization, de-emphasis and output swing. These controls are factory set by the use of zero Ohm resistors. In the

following tables a 0 indicates that a zero Ohm resistor has been installed and a 1 indicates no resistor. In rare cases, mostly where

non-OSS equipment is used with the HIB25-x16, these adjustments may need to be changed. The following tables are made

available for this purpose. It is highly recommended to contact OSS customer support before making changes to these settings.

4.a. Signal Adjustment

Equalizer Selection

Output Swing Control De-emphasis Adjustment

SEL_2[A:D]

SEL_1[A:D]

SEL_0[A:D]

@1.25GHZ

@2.5GHZ

0.5dB

1.2dB

0.6dB

1.5dB

1.0dB

2.6dB

1.9dB

4.3dB

2.8dB

5.8dB

3.6dB

7.1dB

5.0dB

9.0dB

7.7dB

12.3dB

S_1[A:D]

S_0[A:D]

Swing (Diff. VPP)

05V

0.7V

0.9V

D2_[A:D]

D1_[A:D]

D0_[A;D]

De-emphasis

0dB

-2.5dB

-3.5dB

-4.5dB

-5.5dB

-6.5dB

-7.5dB

-8.5dB

Edge

Default

Cable

Default

Cable

Default

Edge

Default

SW=ON

Default

SW=OFF

Default

One Stop Systems OSS-KIT-EXP-9000-2M

Specifications subject to change without notice Page 8

4.b. Pin Assignments

Connectors PCIe x16 Card Edge Connector

The pins are numbered as shown with side A on the top of the centerline on the solder side of the board and side B on the

bottom of the centerline on the component side of the board.

The PCIe interface pins PETpx, PETnx, PERpx, and PERnx are named with the following convention: “PE” stands for PCIe

high speed, “T” for Transmitter, “R” for Receiver, “p” for positive (+), and “n” for negative (-).

Note that adjacent differential pairs are separated by two ground pins to manage the connector crosstalk.

Pin-out for the PCIe x16 Card Edge Connector on the Host Cable Adapter

Pin #

Side B

Side A

Name

Description

Name

Description

N/C

PRSNT1#

Hot-Plug presence detect

N/C

GND

Ground

GND

Ground

N/C

Not connected

N/C

JTAG3

TDI (Test Data Input)

GND

Ground

JTAG4

TDO (Test Data Output)

+3.3V

3.3 V power

N/C

Not connected

N/C

Not connected

N/C

Not connected

3.3Vaux

3.3 V auxiliary power

+3.3V

3.3 V power

N/C

PERST#

Fundamental reset

Mechanical key

RSVD

Reserved

GND

Ground

GND

Ground

REFCLK+

Reference clock (differential

pair)

PETp0

Transmitter differential pair,

Lane 0

REFCLK

PETn0

GND

Ground

GND

Ground

PERp0

Receiver differential pair, Lane 0

PRSNT2#

Hot-Plug presence detect

PERn0

GND

Ground

GND

Ground

PETp1

Transmitter differential pair,

Lane 1

RSVD

Reserved

PETn1

GND

Ground

GND

Ground

PERp1

Receiver differential pair, Lane 1

GND

Ground

PERn1

PETp2

Transmitter differential pair,

Lane 2

GND

Ground

PETn2

GND

Ground

GND

Ground

PERp2

Receiver differential pair, Lane 2

GND

Ground

PERn2

PETp3

Transmitter differential pair,

Lane 3

GND

Ground

PETn3

GND

Ground

GND

Ground

PERp3

Receiver differential pair, Lane 3

RSVD

Reserved

PERn3

PRSNT2#

Hot-Plug presence detect

GND

Ground

GND

Ground

RSVD

Reserved

One Stop Systems OSS-KIT-EXP-9000-2M

Specifications subject to change without notice Page 9

Notes:

1 Optional signals that are not implemented are to be left as no connects on the board side connector.

2 Reserved signals must be left as no connects on the board side connector.

3 Although support of CWAKE# is optional from the board side connector perspective, an allocated wire is mandated for the cable

assembly.

4 Board side pin-out on both sides of the Link is identical. The cable assembly incorporates a null modem for the PCIe transmit and

receive pairs.

PCI Express x16 Connector Pin Assignment

PIN- out for the PCIe x16 Cable

Designator

Description

Dimension

(mm)

Tolerance

(mm)

C01

Interface Width

28.40

±0.10

D01

Forward Edge of Plug to Forward Lower Tab

0.75

±0.13

D02

Slot Depth

6.79

±0.13

D04

Forward Lower Tab Width

25.53

±0.13

D06

Snout Length

28.31

±0.13

D07

Snout Width

34.44

+0.20/-0.05

D08

Latch Face Plane to Forward Edge of PCB

26.29

±0.20

D09

Plug Width

53.00

±0.05

D10

Plug Thickness

20.23

±0.13

D11

Top of Plug to Bottom of Snout

17.18

±0.13

D12

Side Rail Groove Length

27.60

±0.10

D13

Snout Thickness

9.99

+0.15/-0.05

D15

Thickness Top Forward Edge of Plug

0.80

±0.05

D16

Top of Rail Groove to Top of Tongue

6.83

+0.15/-0.05

D17

D17 Top of Snout to Top of Side Groove

2.50

±0.05

D18

Top of Side Groove to Centerline of Upper PCB

0.53

±0.13

D19

Side Rail Groove Width

2.05

±0.05

D21

Zone A Internal Width Rail Groove to Rail Groove

33.24

±0.05

D21

Zone B Internal Width Rail Groove to Rail Groove

32.74

±0.05

D23

Top of Side Groove to Centerline of Lower PCB

5.03

±0.13

D27

Latch Barb Spacing

17.50

±0.05

D28

Length of Zone A

21.54

±0.13

D29

Length of Zone B

5.00

±0.13

D30

Chamfer Width

0.30

±0.05

D31

Chamfer Length

1.00

±0.05

D32

Latch to Plug Body

1.60

±0.13

D33

Internal Plug Width

30.55

±0.10

Row A, Pin 1

Row B, Pin 19

One Stop Systems OSS-KIT-EXP-9000-2M

Specifications subject to change without notice Page 10

D34

Chamfer Height

0.20

±0.05

D35

Chamfer Width

0.45

Min

D36

Pull Radius

4.00

±0.10

D37

Pull Inner Diameter

16.52

Min

D38

Pull Outer Diameter

23.02

Max

D39

Pull Centerline to Radius

13.97

±0.10

D40

Pull Centerline to Radius

20.67

±0.10

D41

Pull Centerline to Latch

63.57

±3.00

D42

Pull Thickness

1.25

Min

D43

Text Height - PCIe

2.70

Ref

D44

Text Height - x16

5.60

Ref

Signal Descriptions

X16 Connector Pin Outs: Target Slot

Name

Mechanical

Key

+12V

GND

+12V

GND

SMCLK

SMDAT

REFCLK1+

GND

REFCLK1-

+3.3V

PS_ON#

+3.3V

3.3Vaux

B10

A10

+3.3V

WAKE#

B11

A11

PERST#

RSVD

B12

A12

GND

End of the

GND

B13

A13

REFCLK2+

PETp(x)

PCI Express Transmit Positive signal of (x) pair.

PETn(x)

PCI Express Transmit Negative signal of (x) pair.

PERp(x)

PCI Express Receive Positive signal of (x) pair.

PERn(x)

PCI Express Receive Negative signal of (x) pair.

CREFCLK+/-

Cable REFerence CLocK: Provides a reference clock from the host system to the

remote system.

SB_RTN

Side Band ReTurN: return path for single ended signals from remote systems.

CPRSNT#

Cable PReSeNT: Indicates the presence of a device beyond the cable.

PWR

PoWeR: Provides local power for in-cable redriver circuits. Only needed on long

cables. Power does not go across the cable.)

PWR_RTN

PoWeR ReTurN: Provides local power return path for PWR pins.

CWAKE#

Cable WAKE

CPERST#

Cable PCI Express Reset

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