F i n i s a r FDB-1022: XFP Evaluation Board The Finisar FDB-1022 Evaluation Board is a convenient that there is no interrupt asserted and will change to green and powerful vehicle for testing and evaluating the new when an interrupt is asserted. 10 Gigabit/s XFP optical transceivers. All the signal lines are available on associated test points. The board consists of a single XFP connector and cage, The module PWRDWN, TXDIS, and MODDESEL lines high quality transmission lines and connectors for the may be manually controlled by switches S1, S3, and S5. serial data signals, connections for reference clock inputs, all low speed status and control lines, and the 2-wire serial management interface. All pin connections are compliant with the XFP MSA Rev 1.0 Standard. For convenience, the FDB-1022 contains onboard switching and linear power supplies to provide all three required module power supplies (1.8V, 3.3V and 5.0V) from a single external +12V connection. The outputs of each onboard supply are factory set, and may be switched off and on using S2. These supplies can be adjusted and monitored (both voltage and current) using the supplied Software Control evaluation board software. By removing jumpers J8, J11 and/or J12, the on-board supplies may be disconnected The FDB-1022 evaluation board is supplied with software from the module and external supplies be connected at and a DB-25 cable for communication with a PC parallel test points labeled 1.8/3.3/5.0V MOD PIN. These test port. This cable allows direct communication between the points may be used to confirm the voltage at the module PC and the module via the 2-wire serial bus on pins SCL supply pins when using the on-board supplies. As a and SDA. XFP modules respond to 2-wire serial bus further convenience, a small fan is provided for cooling address A0h. Additionally, various evaluation board the module. This fan may be disabled by removing its functions may be addressed on other I2C addresses. power connector from jumper J10. Contact Finisar for details on these functions. As supplied, the FDB-1022 is configured to accept a The software included with the board provides a simple 10Gb/s differential REFCLK signal at SMA connectors windows-based GUI and allows control and monitoring of J5/J6. An onboard divider converts this signal to the 1/64 the power supply and status functions of the evaluation rate REFCLK the XFP transceiver module requires. board itself. Future versions of the software will allow Alternatively, the board may be configured to allow a monitoring of the Serial ID, digital diagnostics and status direct connection of a 1/64 clock through SMA information available in Finisars XFP transceivers. connectors J16 and J21. This configuration may be setup by removing the 1nF 0402 capacitors from C11 and C16 Specifications and placing them at locations C65 and C66 (see Figure 2). The Finisar FDB-1022 evaluation board requires a +12V Indicators and controls are provided for all low-speed and 10% power supply at J14. Input signals to the TX+ and power supply lines. Green LEDs, D1-D8, indicate the TX- connectors should have an amplitude between 140mV power supply state for the evaluation board, XFP module, and 700mV differential peak-to-peak (70mV to 350mV and switching power supplies. Their assignment is clearly single-ended). Output signals on the RX+ and RX- marked with screen-printed text on the board next to each connectors will have amplitudes between 180mV and LED. Red LEDs D11, D13, D14, and D15 show the status 640mV single-ended. of the module INTERRUPT, MOD/ABSENT, LOS, and MOD NR output lines. Note that D11, INTERRUPT A 10Gb/s REFCLK may be supplied at J5/J6. The onboard LED, is on when no interrupt is asserted, while it is off divider requires a signal amplitude of 2001000 mV when an asserted interrupt has occurred. Further, this differential p-p (100-500mV S.E.). If a direct REFCLK operation is similar to that of its counterpart LED on the connection is made, a signal of 640 1600 mV differential GUI for the XFP Lab software that accompanies this p-p (320 800 mV S.E.) is required. evaluation board. There, the bright red INT LED indicates Finisar Corp Rev E 24-Aug-04 Finisar Proprietary F i n i s a r Exposed Chassis Exposed Chassis Triple PTriple Power ower JumJumpers to Allow Dpers to Allow Diirerect ct GroGroundund Supply SectionSupply Section Supply CoSupply Connectionnnection 4464 64 ChainChain DireDirect Supply ct Supply ContControl Line rol Line CoConnectionsnnections SwitchesSwitches 10G 10G RefCLK RefCLK DireDirect ct InInputput Single ~ +12V Single ~ +12V TX Input TX Input REFCLK REFCLK RRX X Output Output XXFFI I XXFFI InI Inteterrfaceface InInputput Supply Supply InInputput InInterterfafacece Figure 1. FDB-1022 - Layout and Connection Locations Finisar Corp Rev E 24-Aug-04 Finisar Proprietary