User Manual
Table Of Contents
- OSS-KIT-EXP-6002
- Table of Contents
- 1 Overview
- 2 Component Identification
- 3 Installation Instructions
- 4 Technical Information
- 4.1 Signal Adjustment
- 4.2 Pin Assignments
- 4.3 Pin-out for the PCIe x4 Card Edge Connector on the “Host Cable Adapter”
- 4.4 PCI Express x4 Connector PIN Assignment
- 4.5 Pin-out for the PCIe x4 Cable
- 4.6 Signal Descriptions
- 4.7 Connector Pin-outs for the PCIe x4 Cable Connector
- 4.8 PCI Express x4 Connector PIN Assignment
- 5 Contacting Technical Support
- 6 Returning Merchandise to One Stop Systems
Equalizer Selection
De-emphasis Adjustment
SEL_2I SEL_1I
SEL_O[ @1.
25
@2.
5G
02
_[A:D] D1_(A:
D]
DO_JA
;D] De-emphasis
A: 0 I A: 0 I
A:
01
GHZ HZ
0 0 0 0.5dB
1.
2dB
Ed
ge Defau lt
0 0 0
OdB
SW
=ON Default
0 0 1 0.6dB 1.5dB
0 0 1 -2.
Sd
B
0 1 0 1.0dB 2.6dB
0 1 0 -3.
Sd
B
0 1 1 1.9dB 4.3dB
0 1 1
-4
.SdB
1 0 0 2.BdB 5.BdB
1 0 0 -5.
Sd
B
1 0 1 3.6dB 7.1dB
1 1 0 5.0dB 9.0dB
C
ab
le Defa ult
1
0 1
-6.
SdB
SW
=OFF
De
faul
1
1 0 -7.
SdB
1 1 1 7.?dB 12.3dB
1
1 1
-8.SdB
Output Swing Control
S_1[A:D] S_
O[
A:
D]
Swi
ng
(Diff. VPP)
0 0
Cable
De
fault
1V
0 1
05V
1 0 0.7V Edge
De
fault
1 1 0.9V
One Stop Systems
OSS-KIT-EXP-6002| 9
4 Technical Information
The transmit and receive signals on the OSS-HIB-25x4 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 HIB-25x4, 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. Having the customer solder to
the board should void the warranty.
4.1 Signal Adjustment
4.2 Pin Assignments
Host and Target card connectors (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.