Product Specification 4.25 Gb/s RoHS Compliant Short-Wavelength SFP Transceiver FTLF8524P2xNy PRODUCT FEATURES  Up to 4.25 Gb/s bi-directional data links  Hot-pluggable SFP footprint  Built-in digital diagnostic functions  850nm Oxide VCSEL laser transmitter  Duplex LC connector APPLICATIONS  RoHS Compliant and Lead Free  Up to 500m on 50/125µm MMF,  Tri-Rate 1.063/2.125/4.25 Gb/s 300m on 62.5/125µm MMF Fibre Channel  Metal enclosure, for lower EMI  1.25 Gb/s 1000Base-SX Ethernet  Single 3.3V power supply (Rate selectable version)  Extended operating temperature  Wireless – OBSAI, CPRI range: -20°C to 85°C Finisar’s FTLF8524P2xNy Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA)1. They are compatible with Fibre Channel FC-PI-2 Rev. 7.02. Rate Selectable versions are also compatible with Gigabit Ethernet as specified in IEEE Std 802.33. The optical transceivers are compliant per the RoHS Directive 2011/65/EU. See Finisar Application Note AN-2038 for more details. Digital diagnostics functions are available via the 2-wire serial bus specified in the SFP MSA. PRODUCT SELECTION FTLF8524P2xNy x W Wide Extraction Bail B Narrow Extraction Bail y L Non Rate Selectable - 1x, 2x, 4x Fibre Channel V Rate Selectable - 1x, 2x, 4x Fibre Channel and Gigabit Ethernet  Finisar Corporation August 2015 Rev.K Page 1

FTLF8524P2xNy Pluggable SFP Product Specification I. Pin Descriptions Pin Symbol Name/Description Ref. 1 V Transmitter Ground (Common with Receiver Ground) 1 EET 2 T Transmitter Fault. FAULT 3 T Transmitter Disable. Laser output disabled on high or open. 2 DIS 4 MOD_DEF(2) Module Definition 2. Data line for Serial ID. 3 5 MOD_DEF(1) Module Definition 1. Clock line for Serial ID. 3 6 MOD_DEF(0) Module Definition 0. Grounded within the module. 3 7 Rate Select Open or Low = 1.063 Gb/s or 2.125 Gb/s Fibre Channel, 1.25 Gb/s 4 Gigabit Ethernet (Low Bandwidth) High = 2.125 or 4.25 Gb/s Fibre Channel (High Bandwidth) 8 LOS Loss of Signal indication. Logic 0 indicates normal operation. 5 9 V Receiver Ground (Common with Transmitter Ground) 1 EER 10 V Receiver Ground (Common with Transmitter Ground) 1 EER 11 V Receiver Ground (Common with Transmitter Ground) 1 EER 12 RD- Receiver Inverted DATA out. AC Coupled 13 RD+ Receiver Non-inverted DATA out. AC Coupled 14 V Receiver Ground (Common with Transmitter Ground) 1 EER 15 V Receiver Power Supply CCR 16 V Transmitter Power Supply CCT 17 V Transmitter Ground (Common with Receiver Ground) 1 EET 18 TD+ Transmitter Non-Inverted DATA in. AC Coupled. 19 TD- Transmitter Inverted DATA in. AC Coupled. 20 V Transmitter Ground (Common with Receiver Ground) 1 EET Notes: 1. Circuit ground is internally isolated from chassis ground. 2. Laser output disabled on T >2.0V or open, enabled on T <0.8V. DIS DIS 3. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 3.6V. MOD_DEF(0) pulls line low to indicate module is plugged in. 4. For Rate Selectable version only: In accordance with SFF Committee SFF-8079 Draft Rev. 1.6, Table 3. Note that rate select can also be set through 2-wire bus in accordance with SFF-84725 at Bit 3, Byte 110, Address A2h (note: writing ‘1’ selects full bandwidth operation). Rate select is the logic OR of the input state of Rate Select Pin and 2-wire bus. Non Rate Selectable version can operate at 1x, 2x, 4x Fibre Channel independent of rate select pin setting. 5. LOS is open collector output. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal. VeeT 20 1 VeeT TD- 19 2 TXFault TD+ 18 3 TX Disable VeeT 17 4 MOD-DEF(2) VccT 16 Towards 5 MOD-DEF(1) Towards VccR 15 Bezel 6 MOD-DEF(0) ASIC VeeR 14 7 Rate Select RD+ 13 8 LOS RD- 12 9 VeeR VeeR 11 10 VeeR Diagram of Host Board Connector Block Pin Numbers and Names  Finisar Corporation August 2015 Rev.K Page 2

FTLF8524P2xNy Pluggable SFP Product Specification II. Absolute Maximum Ratings Parameter Symbol Min Typ Max Unit Ref. Maximum Supply Voltage Vcc -0.5 4.0 V Storage Temperature T -40 85 °C S Case Operating Temperature T -20 85 °C A Relative Humidity RH 0 85 % 1 III. Electrical Characteristics (T = -20 to 85 °C, V = 3.0 to 3.6 Volts) A CC Parameter Symbol Min Typ Max Unit Ref. Supply Voltage Vcc 3.0 3.6 V Supply Current Icc 180 240 mA Transmitter Input differential impedance R 100 Ω 2 in Single ended data input swing Vin,pp 150 1200 mV 3 Transmit Disable Voltage V 2 Vcc V 4 D Transmit Enable Voltage V Vee Vee+ 0.8 V EN Receiver Single ended data output swing Vout,pp 300 350 550 mV 5 Data output rise time t 120 ps 6 r Data output fall time t 120 ps 6 f Mask Margin 40% LOS Fault V 2 Vcc V 7 LOS fault HOST LOS Normal V Vee Vee+0.8 V 7 LOS norm Power Supply Rejection PSR 100 mVpp 8 Deterministic Jitter Contribution @ 2.125 Gb/s RX ∆DJ 51.7 ps 9 Determinstic Jitter Contribution @ 4.25 Gb/s 23.5 ps 9 Total Jitter Contribution @ 2.125 Gb/s RX ∆TJ 122 ps 10 Total Jitter Contribution @ 4.25 Gb/s 61 ps 10 Notes: 1. Non condensing. 2. Connected directly to TX data input pins. AC coupling from pins into laser driver IC. 3. We recommend <600mV for best EMI performance. 4. Or open circuit. 5. Into 100 ohms differential termination. 6. Unfiltered, 20 – 80 % 7. LOS is an open collector output. Should be pulled up with 4.7k – 10kohms on the host board. Normal operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V. 8. Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through the recommended power supply filtering network. 9. Typical peak-to-peak jitter (=6*RMS width of Jitter). 10. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ and ∆DJ. If measured with TJ-free data input signal. In actual application, output TJ will be given by: TJ = DJ +∆DJ + (TJ −DJ )2 +(∆TJ −∆DJ)2 OUT IN IN IN  Finisar Corporation August 2015 Rev.K Page 3

FTLF8524P2xNy Pluggable SFP Product Specification IV. Optical Characteristics (T = -20 to 85 °C, V = 3. 00 to 3.60 Volts) OP CC Parameter Symbol Min Typ Max Unit Ref. Transmitter Output Opt. Pwr: 50 or 62.5 MMF P -9 -2.5 dBm 1 OUT Optical Wavelength λ 830 860 nm Spectral Width σ 0.85 nm Optical Modulation Amplitude @ 4.25 Gb/s OMA 247 µW 2 Optical Modulation Amplitude @ 2.125 Gb/s OMA 196 µW 2 Optical Modulation Amplitude @ 1.0625 Gb/s OMA 156 µW 2 Optical Rise/Fall Time t/ t 90 ps 3 r f Relative Intensity Noise RIN -118 dB/Hz Deterministic Jitter Contribution @ 2.125 Gb/s TX ∆DJ 56.5 ps 4 Deterministic Jitter Contribution @ 4.25 Gb/s TX ∆DJ 28.2 ps 4 Total Jitter Contribution @ 2.125 Gb/s TX ∆TJ 119 ps 5 Total Jitter Contribution @ 4.25 Gb/s TX ∆TJ 56.5 ps 5 Extinction Ratio @ 1.25 Gb/s ER 9 dB 6 Mask Margin 45% Receiver Receiver Sensitivity = 1.0625 Gb/s RxSENS -20 dBm 7 Receiver Sensitivity = 2.125 Gb/s RxSENS -18 dBm 7 Receiver Sensitivity = 4.25 Gb/s RxSENS -15 dBm 7 Receiver Sensitivity = 1.25 Gb/s RxSENS -20 dBm 8 Stressed RX sens. =1.0625 Gb/s 0.055 mW 9 Stressed RX sens. =2.125 Gb/s 0.096 mW 9 Stressed Rx sens. = 4.25 Gb/s 0.138 mW 9 Stressed RX sens. =1.25 Gb/s -13.5 dBm 10 Average Receiver Power Rx 0 dBm MAX Receiver Elec. 3 dB cutoff frequency 1500 MHz 11 Receiver Elec. 3 dB cutoff frequency 2500 MHz 12 Optical Center Wavelength λ 770 860 nm C Optical Return Loss 12 dB LOS De-Assert LOS -20 dBm D LOS Assert LOS -30 dBm A LOS Hysteresis 0.5 dB Notes: 1. Class 1 Laser Safety per FDA/CDRH, and EN (IEC) 60825 laser safety standards. 2. Equivalent extinction ratio specification for Fibre Channel. Allows smaller ER at higher average power. 3. Unfiltered, 20-80%. Complies with FC 1x and 2x eye mask when filtered. 4. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ and ∆DJ. 5. If measured with TJ-free data input signal. In actual application, output TJ will be given by: TJ = DJ +∆DJ + (TJ −DJ )2 +(∆TJ −∆DJ)2 OUT IN IN IN 6. Applicable for Rate Selectable version only in low bandwidth mode. 7. Specifications are for 50 micro-meter or 62.5 micro-meter fiber. 8. As measured with 9dB extinction ratio. 9. Measured with conformance signals defined in FC-PI-2 Rev. 7.0 specifications.  Finisar Corporation August 2015 Rev.K Page 4

FTLF8524P2xNy Pluggable SFP Product Specification 10. Measured with conformance signals defined in IEEE 802.3 specifications. 11. Rate Selectable version in low bandwidth mode. 12. Rate Selectable version in high bandwidth mode. V. General Specifications Parameter Symbol Min Typ Max Units Ref. Data Rate BR 1.062, Gb/sec 1 1.25, 2.125, 4.25 Bit Error Rate BER 10-12 5 Fiber Length on 50/125µm MMF L 550 m 2 300 3 150 4 Fiber Length on 62.5/125µm MMF L 300 m 2 150 3 70 4 Notes: 1. 1x, 2x,4x Fibre Channel compatible, per FC-PI-2 Rev. 7.0. Rate selectable version is also Gigabit Ethernet compatible per IEEE 802.3. 2. At 1.0625 Gb/s Fibre Channel data rate and, for rate selectable version, at 1.25 Gb/s Gigabit Ethernet data rate. 3. At 2.125 Gb/s Fibre Channel data rate. 4. At 4.25 Gb/s Fibre Channel data rate 5. 4.25Gb/s with PRBS 27-1. VI. Environmental Specifications Finisar 850nm SFP transceivers have an extended operating temperature range from –20°C to +85°C case temperature. Parameter Symbol Min Typ Max Units Ref. Case Operating Temperature T -20 85 °C op Storage Temperature T -40 85 °C sto VII. Regulatory Compliance Finisar transceivers are Class 1 Laser Products and comply with US FDA regulations. These products are certified by TÜV and CSA to meet the Class 1 eye safety requirements of EN (IEC) 60825 and the electrical safety requirements of EN (IEC) 60950. Copies of certificates are available at Finisar Corporation upon request.  Finisar Corporation August 2015 Rev.K Page 5

FTLF8524P2xNy Pluggable SFP Product Specification VIII. Digital Diagnostic Functions Finisar FTLF8524P2xNy SFP transceivers support the 2-wire serial communication protocol as defined in the SFP MSA1. It is very closely related to the E2PROM defined in the GBIC standard, with the same electrical specifications. The standard SFP serial ID provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer, and other information. Additionally, Finisar SFP transceivers provide a enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range. The SFP MSA defines a 256-byte memory map in E2PROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X (A0h). The digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID memory map remains unchanged. The interface is identical to, and is thus fully backward compatible with both the GBIC Specification and the SFP Multi Source Agreement. The complete interface is described in Finisar Application Note AN- 2030: “Digital Diagnostics Monitoring Interface for SFP Optical Transceivers”. The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the SFP transceiver into those segments of the E2PROM that are not write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def 2) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially. For more information, please see the SFP MSA documentation1,5 and Finisar Application Note AN-2030. Please note that evaluation board FDB-1018 is available with Finisar ModDEMO software that allows simple to use communication over the 2-wire serial interface.  Finisar Corporation August 2015 Rev.K Page 6

FTLF8524P2xNy Pluggable SFP Product Specification IX. Digital Diagnostic Specifications FTLF8524P2xNy transceivers can be used in host systems that require either internally or externally calibrated digital diagnostics. Parameter Symbol Min Typ Max Units Ref. Accuracy Internally measured transceiver DD 3 ºC Temperature temperature Internally measured transceiver DD 100 mV Voltage supply voltage Measured TX bias current DD 10 % 1 Bias Measured TX output power DD 2 dB Tx-Power Measured RX received average DD 2 dB Rx-Power optical power Dynamic Range for Rated Accuracy Internally measured transceiver DD -20 85 ºC Temperature temperature Internally measured transceiver DD 3.0 3.6 V Voltage supply voltage Measured TX bias current DD 0 20 mA Bias Measured TX output power DD -9 -2.5 dBm Tx-Power Measured RX received average DD -20 0 dBm Rx-Power optical power Max Reporting Range Internally measured transceiver DD -40 125 ºC Temperature temperature Internally measured transceiver DD 2.8 4.0 V Voltage supply voltage Measured TX bias current DD 0 20 mA Bias Measured TX output power DD -10 -3 dBm Tx-Power Measured RX received average DD -22 0 dBm Rx-Power optical power Notes: 1. Accuracy of Measured Tx Bias Current is 10% of the actual Bias Current from the laser driver to the laser.  Finisar Corporation August 2015 Rev.K Page 7

FTLF8524P2xNy Pluggable SFP Product Specification X. Mechanical Specifications Finisar’s Small Form Factor Pluggable (SFP) transceivers are compatible with the dimensions defined by the SFP Multi-Sourcing Agreement (MSA). FTLF8524P2BNy  Finisar Corporation August 2015 Rev.K Page 8

FTLF8524P2xNy Pluggable SFP Product Specification FTLF8524P2WNy  Finisar Corporation August 2015 Rev.K Page 9

FTLF8524P2xNy Pluggable SFP Product Specification XI. PCB Layout and Bezel Recommendations  Finisar Corporation August 2015 Rev.K Page 10

FTLF8524P2xNy Pluggable SFP Product Specification  Finisar Corporation August 2015 Rev.K Page 11

FTLF8524P2xNy Pluggable SFP Product Specification XII. References 1. Small Form-factor Pluggable (SFP) Transceiver Multi-source Agreement (MSA), September 14, 2000. 2. “Fibre Channel Draft Physical Interface Specification (FC-PI-2 Rev. 7.0)”. American National Standard for Information Systems. 3. IEEE Std 802.3, 2002 Edition, Clause 38, PMD Type 1000BASE-SX. IEEE Standards Department, 2002. 4. Directive 2011/65/EU of the European Council Parliament and of the Council, “on the restriction of the use of certain hazardous substances in electrical and electronic equipment”. Certain products may use one or more exemptions as allowed by the Directive. 5. “Digital Diagnostics Monitoring Interface for Optical Transceivers”. SFF Document Number SFF-8472, Revision 9.3. XIII. For More Information Finisar Corporation 1389 Moffett Park Drive Sunnyvale, CA 94089-1133 Tel. 1-408-548-1000 Fax 1-408-541-6138 sales@finisar.com www.finisar.com  Finisar Corporation August 2015 Rev.K Page 12