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NORTH AMERICA: 800 498-JDSU (5378) WEBSITE: www.jdsu.comWORLDWIDE: +800 5378-JDSU

SFP+ Evaluation Board

Application Note

Table of Contents

1Introduction................................................................................................................................................... 1

2Equipment...................................................................................................................................................... 2

3 Laser Safety Warning ...................................................................................................................................

4 Evaluation Board Overview ........................................................................................................................ 3

5 Description of Connectors and Jumpers ................................................................................................. 4

6 LED Status Indicators on the Evaluation Board .....................................................................................

7 Typical Eye Diagrams .................................................................................................................................... 12

8 ESD Precautions ............................................................................................................................................. 13

9 Optical Connector Care and Cleaning ....................................................................................................... 14

10 References ....................................................................................................................................................... 15

11 Schematic ......................................................................................................................................................... 17

12 Component Placement Drawing ................................................................................................................. 18

13 Card Dimension Drawing .............................................................................................................................. 19

1 Introduction

This document describes how to use the JDSU SFP+ Evaluation Board PL-PP1-00-044-21 to characterize

SFP and SFP+ products. Section 2 describes the equipment necessary to use the Evaluation Board for

characterization. Section 3 contains laser safety warnings that should be considered when working with any

Class 1 laser device. Section 4 describes a typical test set-up and power requirements for the JDSU SFP+

evaluation board. Section 5 describes connectors and jumpers on the board and Section 6 shows the LED

status indicators. Section 7 illustrates typical eye diagrams from the Transmitter (TX) and Receiver (RX).

PL-PP1-00-044-21 SFP+ Evaluation Board

Summary of content (19 pages)

PAGE 1
Application Note SFP+ Evaluation Board PL-PP1-00-044-21 SFP+ Evaluation Board Table of Contents 1 Introduction ................................................................................................................................................... 1 2 Equipment ...................................................................................................................................................... 2 3 Laser Safety Warning .......................................................
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Application Note: SFP+ Evaluation Board 2 Section 8 explains ESD precautions that should be observed when working with any sensitive electrooptic device. Section 8 explains optical connector care and cleaning. The transceiver optical connector is a duplex LC connector. References to the standards applicable to SFP+ modules are provided in Section 10.
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Application Note: SFP+ Evaluation Board 3 4 Evaluation Board Overview The evaluation board has been designed to allow for the complete characterization and testing of all JDSU SFP+ optical transceivers operating up to 11.7 Gbps. This product is backward compatible with all SFP and SFP+ modules.
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Application Note: SFP+ Evaluation Board 4.1.2 4 Power Supply SFP+ devices are hot-pluggable and can be installed when the power is active. Set the power supply to achieve 3.3 VDC at the Transceiver. Verify that the transmitter is seeing 3.3 volts by checking the TX and RX voltage at the sense pins (VTS+/VTS- and VRS+/VRS- respectively) on the power supply connector (see Figure 2 below). Note: Set the Current Limit to ~300 milliamps per evaluation board if using a common power supply.
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Application Note: SFP+ Evaluation Board 5.1 5 Connectors The evaluation board is pre-configured for use with any SFP+ transceiver. The shorting jumpers are pre-installed. Many of the jumpers have 0 Ω resistors installed in parallel. The complimentary inputs of each data channel are common SMA jacks. An I2C connector jack is installed for optional 2-wire serial communications with the SFP+ module. 5.1.
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Application Note: SFP+ Evaluation Board 6 Table 1 JDSU EMI-Enhanced Cages Part Number Solder-Down Cages PL-KP1-00-000-06 1 Press-Fit Cages PL-KP2-00-000-06 1 Pin Length Description Minimum PCB Thickness Single-Sided Belly-to-Belly .114" (2.9 mm) Solder-down cage for standard applications, .062" minimum PCB .062" (1.8 mm) .110" (2.8 mm) PL-KP2-00-000-16 1 .085" (2.2 mm) PL-KP2-00-000-07 1, 2 .110" (2.8 mm) PL-KP2-00-000-17 1, 2 0 .085" (2.2 mm) PL-KP2-00-000-26 1 .110" (2.
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Application Note: SFP+ Evaluation Board Figure 3: JDSU EMI-Enhanced Press-fit Cage Figure 4: JDSU EMI-Enhanced Press-fit 1x2 Cage Figure 5: JDSU EMI-Enhanced Press-fit 1x2 Cage with light pipes 7
PAGE 8
Application Note: SFP+ Evaluation Board 5.1.4 8 J4: SFP+ Connector Some SFP edge card connectors may not be compatible with higher speed SFP+ applications. SFP+ connectors for 8.5 and 10 G applications are produced by Tyco Electronics3 and Molex4 . The Tyco part number is 1888247-1. The Tyco part is a distinctive off-white color enabling it to be easily distinguished from other connectors. Molex produces two parts with different electrical plating thicknesses.
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Application Note: SFP+ Evaluation Board Table 2 Description of pins on DB-25 Connector J5 Pin Label Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15-24 25 VCCR IR+ VCCT IT+ Provides access to VCCR, can be monitored or applied via this pin Provides access to monitor Receiver current (see schematic) Provides access to VCCT, can be monitored or applied via this pin Provides access to monitor Transmitter current (see schematic) Not Used Monitor transmitter fault condition Monitor transmitter disable condi
PAGE 10
Application Note: SFP+ Evaluation Board 5.2.2 10 SFP+ Control Jumpers JP3, JP4 and JP5 • JP3: TX_ENABLE; If this jumper is left open, the TX is disabled. The state of this pin is indicated by D2. • JP4: Rate_Select_0 (RS0); Not all SFP+ modules offer rate select functionality. This hardware setting only affects modules with RX Rate Select (RS0) functionality and when in the lower logic state, can be overridden by firmware.
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Application Note: SFP+ Evaluation Board 11 Figure 7: Location of LED Indicators on the JDSU SFP+ Evaluation Board 6.1 Power Supply Two (2) LEDs indicate RX power and TX power have been applied. • VR+: VCCR; Indicates power has been applied to the RX (LED D10 Green) • VT+: VCCT; Indicates power has been applied to the TX (LED D11 Green) 6.
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Application Note: SFP+ Evaluation Board 6.3 12 SFP+ Monitor and Control Four (4) LEDs indicate various module parameters. • RXLOS: RX_LOS; Indicates Loss of Signal at the RX when illuminated. (LED D6 RED) • RATE_SELECT: The LEDs do not necessarily reflect the rate select setting of the SFP+ module because some modules can be controlled by firmware. The rate select state of the module is controlled by the “OR” of the hardware state and the firmware state.
PAGE 13
Application Note: SFP+ Evaluation Board 13 Figure 9: Transmitter Eye from JDSU’s 1310nm 10G SFP+ with 10GbE Mask. 8 ESD Precautions Normal ESD precautions are required during the handling of this equipment. The transceivers and evaluation boards are shipped in ESD protective packaging. They should be removed from the packaging and otherwise handled in an ESD protected environment utilizing standard grounded benches, floor mats, and wrist straps.
PAGE 14
Application Note: SFP+ Evaluation Board 14 Cover the workbench surface with a conductive mat with a surface resistivity of 104 to 108 Ω/sq, for a resistance between surface and ground of 7.5 x 105 to 108 Ω. The purpose of this is to disperse static electricity on the surface through resistive components and ground it to earth. Workbench surfaces must not be constructed of low-resistance metallic materials that allow rapid static discharge when a charged device touches them directly.
PAGE 15
Application Note: SFP+ Evaluation Board 9.1 15 Cleaning Optical Connectors with Wipes, Swabs and Isopropyl Alcohol The following items are required: • Canned Air (Clean, dry, oil free compressed air) • Industrial grade 99% pure isopropyl alcohol (Commercially available isopropyl alcohol is not recommended as it may be diluted with water and a light mineral oil and may leave a residue.) • Lint free wipes, such as Kimwipes® • Lint-free swabs 9.1.
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Application Note: SFP+ Evaluation Board 16 Table 4 Applicable Standards Related to SFP+ Modules Signaling Rate High-Speed Electrical Low-Speed Electrical Optical Management Mechanicals 2 Gbps 4 Gbps 8 Gbps 10 Gbps FC-PI-2 FC-PI-2 FC-PI-4 SFP+ SFP+ MSA SFP+ MSA SFP+ SFP+ FC-PI-2 FC-PI-2 FC-PI-4 10GbE SFF-8472 SFF-8472 SFF-8472 SFF-8472 SFP+ MSA IPF & SFP+ MSA IPF IPF SFP MSA SFF-8472 IPF SFP+ INF-8074i SFP (Small Form-Factor Pluggable) Transceiver Specification for Diagnostic Monitoring Inter
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Application Note: SFP+ Evaluation Board 11 Schematic Figure 10: Evaluation Board Schematic 17
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Application Note: SFP+ Evaluation Board 12 Component Placement Drawing Figure 11: Component Placement Drawing 18
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Application Note: SFP+ Evaluation Board 19 13 Card Dimension Drawing Figure 12: Evaluation Board Dimensions NORTH AMERICA : 800 498-JDSU (5378) WORLDWIDE : +800 5378-JDSU Product specifications and descriptions in this document subject to change without notice. © 2008 JDS Uniphase Corporation WEBSITE : www.jdsu.com 30149270 Rev. 000 01/08 SFP+EVALBOARD.AN.CMS.