PCIe ® Adaptor Cards User’s Manual Covering: PCIEA Series May 2013 COPYRIGHTS, Trademarks and PATENTS Product names used herein are trademarks of their respective owners. All information and material in this publication are property of Samtec, Inc. All related rights are reserved. Samtec, Inc. does not authorize customers to make copies of the content for any use. Terms of Use Use of this publication is limited to viewing the pages for evaluation or purchase. No permission is granted to the user to copy, print, distribute, transmit, display in public, or modify the contents of this document in any way. Disclaimer The information in this publication may change without notice. All materials published here are “As Is” and without implied or express warranties. Samtec, Inc. does not warrant that this publication will be without error, or that defects will be corrected. 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Copyright © 2013 Samtec, Inc. 2 Table of Contents Introduction Product Features............................................................................ 5 Functional Description Data Path..........................................................................................7 Clocking............................................................................................7 Reset...............................................................................................7 Target Card Auxiliary Signal Isolation...............................................7 ON-Board Diagnostics Diagnostic LEDs............................................................................. 8 Front Bracket LEDs......................................................................... 9 card configuration Jumper Headers............................................................................. 9 Installation Installing an Adaptor Card............................................................ 10 Installing an Active Optical Cable...................................................10 Installing a Copper Cable................................................................11 Removing AOCs / Copper Cables...................................................11 Technical Information Design Specifications.....................................................................11 Ordering Information......................................................................11 PCIe® is a registered trademark of PCI-SIG®. Note: Samtec PCIe® over Fiber systems have successfully passed the PCI-SIG® Compliance Workshop #85; however as with all PCIe® based systems, there is a risk of interoperability issues with specific systems. Samtec recommends discussing your system with our Optical Group prior to final design. Please contact [email protected]. 3 Introduction The PCIEA Series* are PCI Express® Gen 2 Compliant Switch Adaptor Cards designed to optimize performance for PCIe® over Fiber Applications enabling links up to 300 m in length. In addition to supporting optical links, PCIe® over copper cable is also supported, allowing use of cost effective copper cables for links up to 7 m. *Mates with PCIEO Series Samtec active optical cable assemblies. PCIe® x4 card 4 PCIe® x8 card Introduction Product Features • PCIe® Base Spec 2.1 - Gen 1 (2.5 GT/s) compliant - Gen 2 (5.0 GT/s) compliant • Low profile card available with full size or low profile bracket • Supports copper cables up to 7 m in length • Supports Samtec Active Optical Cables (PCIEO Series) up to 300 m • Enables Spread-spectrum Clock Support • Supports PCIe® auxiliary signaling - CPWRON - CPERST# - CPRSNT# - CWAKE# • Diagnostic LEDs - link speed and width - power - sideband status 5 Functional Description The block diagram of the adaptor card is shown in Figure 1 [PCIEA-8G2-H-01 shown]. Figure 1: Adaptor Card Functional Block Diagram 6 Functional Description Data Path The cards are based on a 24 lane, 6 port IDT PCIe® switch of which only 16 lanes are used for the x8 cards, and only 8 for the x4 cards. The other lanes are powered off to minimize power consumption. Port0 is connected to the card edge connector and Port8 is connected to the PCIe® External Cabling Specifications compliant x8 cable connector. Port8 lanes are reversed for maximum RF performance. Port0 and Port8 are configured as follows for the host and target modes: Ports Host Mode Target Mode Port0 Upstream Downstream Port8 Downstream Upstream Clocking The two 100 MHz clocks for the switch are supplied by an on-board PCIe® Base Spec 2.1 compliant frequency generator. This generator also supplies the constant clock source that drives the PCIe® cable connector for the host card and the PCIe® edge connector for the target mode. Reset At power-up, the card is held in reset until the on-board generated voltages are stable and the auxiliary signal PERST# is disabled. Target Card Auxiliary Signal Isolation The target card can be identified by the four optocouplers situated above the cable cage. These provide electrical isolation for the auxiliary signals when a copper cable is used to extend the PCIe® bus. 7 On-board diagnostics Diagnostic LEDs Diagnostic LEDs are included on both host and target adaptor cards. Their functions are described in the below table. LED Name 1 CPERST# 2 CPRSNT# 3 4 5 6 7 CPWRON CWAKE# RST AUX PGOOD State Auxiliary Signal CPERST# is high Red Auxiliary Signal CPERST# is low (generating reset) Off Auxiliary Signal CPRSNT# is low (downstream system is connected) Red Auxiliary Signal CPRSNT# is high Off Auxiliary Signal CPWRON is high (power good) Red Auxiliary Signal CPWRON is low Off Auxiliary Signal CWAKE# is high Red Auxiliary Signal CWAKE# is low Off IDT switch operating normally Red IDT switch is held in reset Off Aux 3.3 V power supply not present Green 8 Card generated 1.0 V, 2.5 V and 3.3 V power rails are not stable at correct voltage Green Card generated 1.0 V, 2.5 V and 3.3 V power rails are stable and at correct voltage Gen 1 speed (2.5 GT/s) physical link Green Gen 2 speed (5.0 GT/s) physical link Off Card Edge Activity Green 10* Cable Link Width Green Card Edge Link Width No Link Amber 9 11* Aux 3.3 V power supply present Off Off Card Edge Link Speed Description Off Off Off Green No Activity Active data transfer through card edge connector No Physical Link negotiated Physical link negotiated. Link width corresponds to number of lit LEDs No Physical Link negotiated Physical link negotiated. Link width corresponds to number of lit LEDs *x8 card shown; x4 cards have only 4 LEDs for banks 10 and 11 8 On-board diagnostics Front Bracket LEDs In addition, there are two LEDs on the front bracket of the card. These are labeled “Link” and “Activity” and their function is: Name State Off No Link Link Amber Gen 1 speed (2.5 GT/s) physical link Green Gen 2 speed (5.0 GT/s) physical link Activity Description Off No Activity Green Active data transfer through cable Card configuration Jumper Headers There are several jumper connectors on the adaptor card. Their stuffing is dependent on whether the card is a host or a target. In the below table, the shipped condition is bolded for the host and underlined for the target. Number Host/Target JP3 Target JP4 Target JP5 JP7 Both Both Description Jumper installed Enables IDT reset from CPERST# Jumper not installed Do not reset IDT on CPERST# Jumper installed Connects CPERST# and PERST# Jumper not installed Isolates PERST# from CPERST# Jumper installed CWAKE# is held low at cable connector* Jumper not installed CWAKE# is propagated Open No power supplied to cable connector Jumper installed on pins 1 and 2 Cable is powered by card generated 3.3 V Jumper installed on pins 1 and 3 Cable is powered by 3.3 V Aux * PCIe-over-Fiber AOCs that support sideband propagation will not work in this configuration. If this option is required then the option “NO Sidebands” needs to be chosen when ordering the cables. 9 Installation Warning ! Adaptor Cards and Active Optical Cables are ESD sensitive. Always take suitable precautions when installing cards and AOCs to prevent damage to these components. Installing an Adaptor Card 1. Power down the host system. 2. Open the chassis per manufacturer’s instructions. 3. Identify an empty PCIe® x8 or x16 socket to use. Note, not all sockets support x8 or x16 PCIe® lanes even though they have sockets. It is recommended to check the system manual to confirm socket capabilities. The adaptor cards will automatically reconfigure for lower lane counts; however, throughput will be reduced. 4. Remove the blanking plate corresponding to the identified PCIe® socket. 5. Insert the adaptor into the socket, ensuring that the card is well seated. 6. Secure the card with the removed screw from step 4. 7. Close the chassis. 8.When powering up, ensure a cable is connected and the downstream device is powered up first. Installing an Active Optical Cable 1. Ensure that upstream and downstream systems are powered down. 2. Identify the host end and target end of the AOC. The host end should be installed in the upstream port and the target end should be installed in the downstream port. 3. Based on step 2, insert the correct end of the AOC fully into the chosen port. Note: The port housing is polarized and the connector can only be inserted one way. 4. Ensure the latch mechanism interlocks with the cutouts in the port housing. 10 InSTALLATION Installing a Copper Cable 1. Ensure that upstream and downstream systems are powered down. 2. Copper cable connectors are identical and no care needs to be taken with where each end needs to be plugged. 3. Ensure the latch mechanism interlocks with the cutouts in the port housings. Removing AOCs/Copper Cables 1. Both cable types have a latching mechanism to prevent accidental removal. The latching mechanism needs to be released prior to removal. a. For optical cables, this is achieved by squeezing the ridged lever on the end closest to the fiber entry b. For copper cables, this is achieved by pulling the green plastic release latch Technical Information Design Specifications PCIEA Series cards have been designed to meet the following parameters: Specification Unit Min Operating Temperature °C 0 Typ Max 55 Relative Humidity % 5 95 Altitude m 0 Power Consumption W Shock G Notes Noncondensing 3000 9 30 Acceleration Peak Ordering Information PCIe® Adaptor Cards PCIEA - XXX - Product Category Speed x4 channel device x8 channel device X - 01 4G2 8G2 Type Host Card Target Card H T 11 For more information visit www.samtec.com/active-optics or contact Samtec’s Optical Group at [email protected] All designs, specifications and components are preliminary and subject to change without notice. SUDDEN SERVICE