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
T#
+3.3v
Clock*
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
0
0
0.5dB
1.2dB
0
0
1
0.6dB
1.5dB
0
1
0
1.0dB
2.6dB
0
1
1
1.9dB
4.3dB
1
0
0
2.8dB
5.8dB
1
0
1
3.6dB
7.1dB
1
1
0
5.0dB
9.0dB
1
1
1
7.7dB
12.3dB
S_1[A:D]
S_0[A:D]
Swing (Diff. VPP)
0
0
1V
0
1
05V
1
0
0.7V
1
1
0.9V
D2_[A:D]
D1_[A:D]
D0_[A;D]
De-emphasis
0
0
0
0dB
0
0
1
-2.5dB
0
1
0
-3.5dB
0
1
1
-4.5dB
1
0
0
-5.5dB
1
0
1
-6.5dB
1
1
0
-7.5dB
1
1
1
-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
1
N/C
N/C
PRSNT1#
Hot-Plug presence detect
2
N/C
N/C
N/C
N/C
3
N/C
N/C
N/C
N/C
4
GND
Ground
GND
Ground
5
NC
N/C
N/C
Not connected
6
N/C
N/C
JTAG3
TDI (Test Data Input)
7
GND
Ground
JTAG4
TDO (Test Data Output)
8
+3.3V
3.3 V power
N/C
Not connected
9
N/C
Not connected
N/C
Not connected
10
3.3Vaux
3.3 V auxiliary power
+3.3V
3.3 V power
11
N/C
N/C
PERST#
Fundamental reset
Mechanical key
12
RSVD
Reserved
GND
Ground
13
GND
Ground
REFCLK+
Reference clock (differential
pair)
14
PETp0
Transmitter differential pair,
Lane 0
REFCLK
15
PETn0
GND
Ground
16
GND
Ground
PERp0
Receiver differential pair, Lane 0
17
PRSNT2#
Hot-Plug presence detect
PERn0
18
GND
Ground
GND
Ground
19
PETp1
Transmitter differential pair,
Lane 1
RSVD
Reserved
20
PETn1
GND
Ground
21
GND
Ground
PERp1
Receiver differential pair, Lane 1
22
GND
Ground
PERn1
23
PETp2
Transmitter differential pair,
Lane 2
GND
Ground
24
PETn2
GND
Ground
25
GND
Ground
PERp2
Receiver differential pair, Lane 2
26
GND
Ground
PERn2
27
PETp3
Transmitter differential pair,
Lane 3
GND
Ground
28
PETn3
GND
Ground
29
GND
Ground
PERp3
Receiver differential pair, Lane 3
30
RSVD
Reserved
PERn3
31
PRSNT2#
Hot-Plug presence detect
GND
Ground
32
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
Pin
#
Pin
#
Name
Mechanical
Key
+12V
B1
A1
GND
+12V
B2
A2
+12V
+12V
B3
A3
+12V
GND
B4
A4
GND
SMCLK
B5
A5
NC
SMDAT
B6
A6
REFCLK1+
GND
B7
A7
REFCLK1-
+3.3V
B8
A8
NC
PS_ON#
B9
A9
+3.3V
3.3Vaux
B10
A10
+3.3V
WAKE#
B11
A11
PERST#
RSVD
B12
A12
GND
End of the
x1
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

One Stop Systems OSS-KIT-EXP-9000-2M
Page 11
PETp0
B14
A14
REFCLK2-
Connector
PETn0
B15
A15
GND
GND
B16
A16
PERp0
PRSNT_X1#
B17
A17
PERn0
GND
B18
A18
GND
PETp1
B19
A19
RSVD
End of the
x4
Connector
PETn1
B20
A20
GND
GND
B21
A21
PERp1
GND
B22
A22
PERn1
PETp2
B23
A23
GND
PETn2
B24
A24
GND
GND
B25
A25
PERp2
GND
B26
A26
PERn2
PETp3
B27
A27
GND
PETn3
B28
A28
GND
GND
B29
A29
PERp3
RSVD
B30
A30
PERn3
PRSNT_X4#
B31
A31
GND
GND
B32
A32
RSVD
PETp4
B33
A33
RSVD
End of the
x8
Connector
PETn4
B34
A34
GND
GND
B35
A35
PERp4
GND
B36
A36
PERn4
PETp5
B37
A37
GND
PETn5
B38
A38
GND
GND
B39
A39
PERp5
GND
B40
A40
PERn5
PETp6
B41
A41
GND
PETn6
B42
A42
GND
GND
B43
A43
PERp6
GND
B44
A44
PERn6
PETp7
B45
A45
GND
PETn7
B46
A46
GND
GND
B47
A47
PERp7
PRSNT_X8#
B48
A48
PERn7
GND
B49
A49
GND
PETp8
B50
A50
RSVD
End of the
x16
Connector
PETn8
B51
A51
GND
GND
B52
A52
PERp8
GND
B53
A53
PERn8
PETp9
B54
A54
GND
PETn9
B55
A55
GND
GND
B56
A56
PERp9
GND
B57
A57
PERn9
PETp10
B58
A58
GND
PETn10
B59
A59
GND
GND
B60
A60
PERp10
GND
B61
A61
PERn10
PETp11
B62
A62
GND
PETn11
B63
A63
GND
GND
B64
A64
PERp11
GND
B65
A65
PERn11
PETp12
B66
A66
GND
PETn12
B67
A67
GND
GND
B68
A68
PERp12
GND
B69
A69
PERn12

One Stop Systems OSS-KIT-EXP-9000-2M
Page 12
PETp13
B70
A70
GND
PETn13
B71
A71
GND
GND
B72
A72
PERp13
GND
B73
A73
PERn13
PETp14
B74
A74
GND
PETn14
B75
A75
GND
GND
B76
A76
PERp14
GND
B77
A77
PERn14
PETp15
B78
A78
GND
PETn15
B79
A79
GND
GND
B80
A80
PERp15
PRSNT_X16#
B81
A81
PERn15
RSVD
B82
A82
GND
Endpoint Slot
Pin #
Name
Pin
#
Name
Mechanical
Key
B1
+12V
A1
GND
B2
+12V
A2
+12V
B3
+12V
A3
+12V
B4
GND
A4
GND
B5
SMCLK
A5
NC
B6
SMDAT
A6
REFCLK2+
B7
GND
A7
REFCLK2-
B8
+3.3V
A8
NC
B9
NC
A9
+3.3V
B10
3.3Vaux
A10
+3.3V
B11
WAKE#
A11
PERST#
B12
RSVD
A12
GND
End of the x1
Connector
B13
GND
A13
REFCLK1+
B14
PERp0
A14
REFCLK1-
B15
PERn0
A15
GND
B16
GND
A16
PETp0
B17
PRSNT_X1#
A17
PETn0
B18
GND
A18
GND
B19
PERp1
A19
RSVD
End of the x4
Connector
B20
PERn1
A20
GND
B21
GND
A21
PETp1
B22
GND
A22
PETn1
B23
PERp2
A23
GND
B24
PERn2
A24
GND
B25
GND
A25
PETp2
B26
GND
A26
PETn2
B27
PERp3
A27
GND
B28
PERn3
A28
GND
B29
GND
A29
PETp3
B30
RSVD
A30
PETn3
B31
PRSNT_X4#
A31
GND
B32
GND
A32
RSVD
B33
PERp4
A33
RSVD
End of the x8
Connector
B34
PERn4
A34
GND
B35
GND
A35
PETp4
B36
GND
A36
PETn4
B37
PERp5
A37
GND

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Page 13
B38
PERn5
A38
GND
B39
GND
A39
PETp5
B40
GND
A40
PETn5
B41
PERp6
A41
GND
B42
PERn6
A42
GND
B43
GND
A43
PETp6
B44
GND
A44
PETn6
B45
PERp7
A45
GND
B46
PERn7
A46
GND
B47
GND
A47
PETp7
B48
PRSNT_X8#
A48
PETn7
B49
GND
A49
GND
B50
PERp8
A50
RSVD
End of the
x16
Connector
B51
PERn8
A51
GND
B52
GND
A52
PETp8
B53
GND
A53
PETn8
B54
PERp9
A54
GND
B55
PERn9
A55
GND
B56
GND
A56
PETp9
B57
GND
A57
PETn9
B58
PERp10
A58
GND
B59
PERn10
A59
GND
B60
GND
A60
PETp10
B61
GND
A61
PETn10
B62
PERp11
A62
GND
B63
PERn11
A63
GND
B64
GND
A64
PETp11
B65
GND
A65
PETn11
B66
PERp12
A66
GND
B67
PERn12
A67
GND
B68
GND
A68
PETp12
B69
GND
A69
PETn12
B70
PERp13
A70
GND
B71
PERn13
A71
GND
B72
GND
A72
PETp13
B73
GND
A73
PETn13
B74
PERp14
A74
GND
B75
PERn14
A75
GND
B76
GND
A76
PETp14
B77
GND
A77
PETn14
B78
PERp15
A78
GND
B79
PERn15
A79
GND
B80
GND
A80
PETp15
B81
PRSNT_X16#
A81
PETn15
B82
RSVD
A82
GND

One Stop Systems OSS-KIT-EXP-9000-2M
Page 14
5 Ordering Information
OSS-KIT-EXP-9000-2M PCIe x16 Gen 2 expansion kit with PCIe x16 Gen 2 host cable adapter, PCIe x16 Gen 2 target cable
adapter, PCIe 2-slot Gen 2 target backplane, and PCIe x16 2M cable.