One Stop Systems MAX Expansion OSS-KIT-EXP-2000 User manual

User Manual,
Host server to expansion system kit
(OSS-KIT-EXP-2000)

One Stop Systems OSS-KIT-EXP-2000-2M
Page 2
Table of Contents
1. Overview
1.a. Description..........................................................................................................................................3
2. Component Identification
2.a. Host cable adapter..............................................................................................................................4
2.b. Expansion cable adapter.....................................................................................................................4
2.c. Host adapter specifications .................................................................................................................5
2.d. Expansion cable adapter specifications ..............................................................................................5
3. Installation Instructions
3.a. Installing the adapter kit ......................................................................................................................6
3.b. Using with the 2-slot backplane...........................................................................................................6
3.c. Removing PCIe cable..........................................................................................................................6
4. Technical Information
4.a. Host adapter card switch settings........................................................................................................7
4.b. Host cable adapter LEDs ....................................................................................................................8
4.c. Pin assignments..................................................................................................................................9
4.d. PCI Express x4 Connector Pin Assignment........................................................................................10
4.e. Pin-out for PCIe x4 cable ....................................................................................................................11
4.f. Signal descriptions...............................................................................................................................12
5. Ordering Information

One Stop Systems OSS-KIT-EXP-2000-2M
Page 3
1. Overview
1.a. Description
The host interface board installs into a PCIe x4, x8, or x16 connector in your host motherboard or backplane. The expansion cable
adapter (ECA) is a free-standing board with four screw mounting holes and can be mounted into an enclosure. The ECA slot
operates at x4 speeds but its x16 connector can accommodate a PCIe x4, x8, or x16 add-in card. The Cable Expansion Kit 2000
allows you to operate any PCI Express-based device remotely over a cable at speeds up to 10Gb/s.
PCIe backplane in
the host enclosure
CPCIe backplane in the
expansion enclosure
ELB in the system slot
Host adapter card in
a peripheral slot
x4 PCIe cable
Host cable adapter
Expansion cable adapter
PCI x4 express cable

One Stop Systems OSS-KIT-EXP-2000-2M
Page 4
2. Components
2.a. Host cable adapter
The PCIe x4 host adapter installs in the host computer’s PCIe x4, x8 or x16 slot.
2.b. Expansion cable adapter
The ECA is a free-standing adapter board that transfers the PCIe bus from a x4 cable connector to a x4 link slot with a x16
connector.
LVPECL
Clock Buffer
Downstream
X4 PCI Express
Cable Connector
Upstream
X4 PCI Express
Card Edge Connector
PCIe Signal
Redriver
PCIe Signal
Redriver
LEDs
Cable
Present/ Pwr
X4
PCIe
X4
PCIe
Rx
CPRS
NT#
+3.3
v
Clock*
Clock*
LEDs
PCIe lane
status
X4
PCIe
Tx
X4
PCIe
*Clock direction shown in
Host configuration
Slot cover (also
available in low
profile height)
PCIe x4
connector
PCIe x4
connector
PCIe x16 Mechanical
slot Connection
(PCIe x4 electrically)
LVPECL
Clock
Buffer
Downstream
x4 PCI Express
Cable Connector
Upstream
x4 PCI Express
Card Edge Connector
PCIe
Signal
Redriver
PCIe
Signal
Redriver
LEDs
Cable Present/ Pwr
x4 PCIe Rx
x4 PCIe
CPR
SNT#
+3.3
Clock*
Clock*
LEDs
PCIe lane status
x4 PCIe
x4 PCIe Tx
*Clock direction shown in
Host configuration

One Stop Systems OSS-KIT-EXP-2000-2M
Page 5
2.c. Host adapter specifications
2.d. Expansion cable adapter specifications
Form Factor
x4 PCIe add-in card
Dimensions (H x L)
2.713 x 3.354" (68 x 86mm)
Front Panel Connectors
One PCIe x4 cable connector
Front Panel Indicators
Power On / Cable Present LEDs
Redriver
Pericom PI2EQX4402
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
Power Consumption
3.75W typical, [email protected]
Agency Compliance designed to
meet but not tested
UL60950, FCC Class B, CE safety and emissions
Electrical/Mechanical Specifications
Form Factor:
PCI Express x4 PCIe short add-in card
Dimensions (H x L):
2.7 x 6.6 inches (69 x 161 mm)
Front Panel Connectors:
Molex 75586-0010
Front Panel Indicators:
Power On / Cable Present LEDs
Power Consumption (designed to meet the following conditions)
3.75W maximum; 3.3V @ 1.75; 2.6W; .5A @ 5 Vaux
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 PI2EQX4401
Agency Compliance Designed to meet, but not tested
UL60950, FCC Class B, CE safety and emissions

One Stop Systems OSS-KIT-EXP-2000-2M
Page 6
3. Installation Instructions
3.a. Installing the Adapter Kit
1) Install the host cable adapter into an appropriate PCIe slot of the host computer. NOTE: For example, a PCIe x8
host board can be installed in a PCIe x16 or a x8 slot. It will still operate at x8 speeds.
3.b. When using with the 2-slot Backplane:
2) Install the expansion link board into the system host slot on the expansion system.
3) Connect the PCIe cable to both cable adapters.
a) Pull back on the tab, lifting the prongs that insert in the holes on the PCIe connector.
b) Push in the connector.
c) Release green thumb tab insuring that the prongs are fully engaged in the mating connector.
d) Test by pulling back on the connector.
3.c. 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-2000-2M
Page 7
4. Technical Information
4.a. Host adapter card switch settings
The OSS HIB2-x4 contains two x8 micro switches that allow configuration of the Pericom PI2EQX4402D’s equalization,
amplification and de-emphasis circuitry. The two switches, SW1 and SW2, are located above the Pericom devices on the front side
of the PCB.
SW1 and SW2 Switch Location and Orientation
Switch SW1 Settings Switch SW2 Settings
Switch
#
Signal
Name
Default*
Comments
1
ENABLE
Down
Up = Disable all Lanes
Down = Normal operation
2
RX_SEL0
Up
Rx Equalizer Selection
See Table 1
3
RX_SEL1
Up
4
RX_SEL2
Up
5
RX_SEL3
Up
Rx Amplifier Selection
See Table 2
6
RX_SEL4
Up
7
RX_SEL5
Up
Rx De-Emphasis
Selection
See Table 3
8
RX_SEL6
Up
Table 1 Table 2 Table 3
Switch
#
Signal
Name
Default
*
Comments
1
N/C
Not connected
2
TX_SEL
0
Up
Tx Equalizer
Selection
See Table 1
3
TX_SEL
1
Up
4
TX_SEL
2
Up
5
TX_SEL
3
Down
Tx Amplifier Selection
See Table 2
6
TX_SEL
4
Down
7
TX_SEL
5
Up
Tx De-Emphasis
Selection
See Table 3
8
TX_SEL6
Down
2
3
4
Equalization
0
0
0
No Equalization
0
0
1
1.5db @ 1.25 GHz
ON, low, 0, Up
OFF, high, 1, Down
1 2 3 4 5 6 7 8
SW2
SW1
1
8
1
8

One Stop Systems OSS-KIT-EXP-2000-2M
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4.b. Host cable adapter LEDs
0
1
0
2.5db @ 1.25 GHz
0
1
1
3.5db @ 1.25 GHz
1
0
0
4.5db @ 1.25 GHz
1
0
1
5.5db @ 1.25 GHz
1
1
0
5.5db @ 1.25 GHz
1
1
1
7.5db @ 1.25 GHz
5
6
Swing
0
0
1x
0
1
0.8x
1
0
1.2x
1
1
1.4x
7
8
De-emphasis
0
0
0db
0
1
-2.5db
1
0
-3.5db
1
1
-4.5db
LED #
Function
CR2
Tx pair, Lane 0 (from card edge)
CR3
Rx pair, Lane 0 (from cable)
CR4
Tx pair, Lane 1 (from card edge)
CR5
Rx pair, Lane 1 (from cable)
CR6
Tx pair, Lane 2 (from card edge)
CR7
Rx pair, Lane 3 (from cable)
CR8
Tx pair, Lane 3 (from card edge)
CR9
Rx pair, Lane 2 (from cable)
Power LED
Cable present
LED
Power and
Cable present
LEDs
PCIe Lane Status LEDs
CR2
CR4
CR6
CR8
CR3
CR5
CR7
CR9

One Stop Systems OSS-KIT-EXP-2000-2M
Page 9
4.c. Pin Assignments
Host adapter card connectors PCIe x4 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 x4 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-2000-2M
Page 10
Notes:
1. Optional signals that are not implemented are left as no connects on the board side connector.
2. Reserved signals are 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-outs on both sides of the link are identical. The cable assembly incorporates a null modem for the PCIe transmit
and receive pairs.
4.d. PCI Express x4 Connector Pin Assignment
Row A, Pin 1
Row B, Pin 19

One Stop Systems OSS-KIT-EXP-2000-2M
Page 11
4.e. Pin-out for the PCIe x4 Cable
Pin #
Cable Side 1
Cable Side 2
Pin #
A1 A4 A7 A10 A13
A16 B1 B4 B7 B10
B13
GND
Drain Wires
GND
A1 A4 A7 A10 A13
A16 B1 B4 B7 B10
B13
A2
PETp0
Differential Pair
PERp0
B2
A3
PETn0
PERn0
B3
A5
PETp1
Differential Pair
PERp1
B5
A6
PETn1
PERn1
B6
Pin #
Cable Side 1
Cable Side 2
Pin #
A8
PETp2
Differential Pair
PERp2
B8
A9
PETn2
PERn2
B9
A11
PETp3
Differential Pair
PERp3
B11
A12
PETn3
PERn3
B12
A14
CREFCLK+
Differential Pair
CREFCLK+
A14
A15
CREFCLK
CREFCLK-
A15
A17
SB_RTN
Hook-up Wire
SB_RTN
A17
A18
CPRSNT#
Hook-up Wire
CPRSNT#
A18
A19
CPWRON
Hook-up Wire
CPWRON
A19
B2
PERp0
Differential Pair
PETp0
A2
B3
PERn0
PETn0
A3
B5
PERp1
Differential Pair
PETp1
A5
B6
PERn1
PETn1
A6
B8
PERp2
Differential Pair
PETp2
A8
B9
PERn2
PETn2
A9
B11
PERp3
Differential Pair
PETp3
A11
B12
PERn3
PETn3
A12
B14
PWR
NC
PWR
B14
B15
PWR
NC
PWR
B15
B16
PWR_RTN
NC
PWR_RTN
B16
B17
PWR_RTN
NC
PWR_RTN
B17
B18
CWAKE#
Hook-up Wire
CWAKE#
B18
B19
CPERST#
Hook-up Wire
CPERST#
B19
Backshell
Chassis Ground
Overall Cable
Braid
Chassis Ground
Backshell

One Stop Systems OSS-KIT-EXP-2000-2M
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4.f. Signal Descriptions
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

OSS-KIT-EXP-2000-2M
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One Stop Systems
5. Ordering Information
OSS-KIT-EXP-2000
PCIe x4 expansion kit includes a PCIe x4 Gen 1 host cable adapter (OSS-PCIe-HIB2-x4-H), a PCIe x4 expansion cable adapter
(OSS-ECA-x4), and a PCIe x4 2M cable.
Related Products
OSS-ECA-x4 Expansion cable adapter