FCCG125SD1CZ5 COHERENT | Alldatasheet
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Finisar Corporation – November 2018 Rev. B2 Page 1 Product Specification 25G SFPwire® SFP+ Active Optical Cable FCCG125SD1Cxx PRODUCT FEATURES Hot-pluggable SFP+ cable ends Supports 25.7813 Gb/s bit rate Connectivity Diagnostics® SFI limiting interface Input equalization and output emphasis controls Single 3.3V power supply Low power dissipation 0° C to 70° C Temperature range Rigid pull-tab with LED light
APPLICATIONS
25G Ethernet for Intra- and Inter-Rack data center interconnection Finisar 25G SFPwire®, FCCG125SD1Cxx, are SFP+ Active Optical Cables designed for use in 25G Ethernet links. Finisar 25G SFPwire ® are equipped with Connectivity Diagnostics®, a Finisar’s technology solution enabling real-time performance monitoring and troubleshooting. The electrical interface of Finisar 25G SFPwire ® is compliant with SFF-8431[1], and the receiver side is limiting. Finisar 25G SFPwire® provides non-adaptive input equalization and output emphasis controls as per SFF -8472[2]. The mechanical specifications of the 25G SFPwire ® SFP+ ends are compatible with SFF-8432[3]. The 25G SFPwire® is RoHS compliant per Directive 2011/65/EU[4,5]. PRODUCT SELECTION FCCG125SD1Cxx Cable Length Options (Orange Jacket Cables) xx = Z5 0.5m xx = 05 5m xx = 01 1.0m xx = 07 7m xx = A5 1.5m xx = 09 9m xx = 02 2.0m xx = 10 10m xx = B5 2.5m xx = 15 15m xx = 03 3.0m xx = 20 20m xx = C5 3.5m xx = 30 30m Please contact Finisar for Aqua-color jacket or custom length options.
Pin Symbol Name/Description Ref.
1 VEET Transmitter Ground (Common with Receiver Ground) 1
4 SDA 2-wire Serial Interface Data Line 2
5 SCL 2-wire Serial Interface Clock Line 2
7 RS0 No connection required
9 RS1 No connection required
10 VEER Receiver Ground (Common with Transmitter Ground) 1
11 VEER Receiver Ground (Common with Transmitter Ground) 1
14 VEER Receiver Ground (Common with Transmitter Ground) 1
15 VCCR Receiver Power Supply 7
16 VCCT Transmitter Power Supply 7
17 VEET Transmitter Ground (Common with Receiver Ground) 1
18 TD+ Transmitter Non-Inverted DATA in. AC Coupled. 19 TD- Transmitter Inverted DATA in. AC Coupled.
20 VEET Transmitter Ground (Common with Receiver Ground) 1
- Circuit ground is internally isolated from chassis ground.
- Open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on the host
board if intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V.
- A high output indicates a transmitter fault caused by either the TX bias cur rent or the TX output power
- Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
- Internally pulled down per SFF-8431 Rev 4.1.
- LOS is open collector output. Should be pulled up with 4.7k – 10k on host board to a voltage between
2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal. Figure 1. Diagram of Host Board Connector Block Pin Numbers and Names.
FCCG125SD1Cxx Product Specification Finisar Corporation - November 2018 Rev. B2 Page 3 II. Absolute Maximum Ratings Exceeding the limits below may damage the active optical cable permanently. Parameter Symbol Min Typ Max Unit Ref. Maximum Supply Voltage Vcc -0.5 4.0 V Storage Temperature TS -5 75 C 1 Case Operating Temperature TA 0 70 C Relative Humidity RH 0 85 % 2 Notes: 1. Assumes no mechanical load force on the unit. Ensuring no mechanical load force requires a cable bend radius of >105 mm within 100 mm of either cable and SFP+ end and >60 mm on the rest of the cable. Cable is rated for the storage temperature range is -20 to 75° C. Non-condensing. III. Electrical Characteristics (each cable end, TOP = 0 to 70 C, VCC = 3.14 to 3.46 Volts) Parameter Symbol Min Typ Max Unit Ref. Supply Voltage Vcc 3.14 3.46 V Supply Current Icc 310 mA Transmitter Input differential impedance Rin 100 1 Differential data input swing Vin,pp 180 700 mV Transmit Disable Voltage VD 2 Vcc V Transmit Enable Voltage VEN Vee Vee+ 0.8 V Receiver Differential data output swing Vout,pp 300 850 mV 2 Data output rise time, fall time tr 28 ps 3 LOS Fault VLOS fault 2 VccHOST V 4 LOS Normal VLOS norm Vee Vee+0.8 V 4 Power Supply Noise Tolerance VccT/VccR Per SFF-8431 Rev 4.1 mVpp 5 Notes: 1. Connected directly to TX data input pins. AC coupling from pins into laser driver IC. 2. Into 100 differential termination. 3. 20 – 80% . Measured with Module Compliance Test Board and OMA test pattern. Use of four 1’s and four 0’s in sequence in the PRBS^9 is an acceptable alternative[1]. 4. LOS is an open collector output. Should be pulled up with 4.7k – 10k on the host board. Normal operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V. 5. Testing methodology per [1]. IV. Input Equalization and Output Emphasis Controls Finisar FCCG125SD1Cxx provide non-adaptive input equalization and output emphasis controls, allowing the host to select pre-set levels of optimization of the electrical high-speed signals of the transceiver’s transmitter input and receiver output, via the 2-wire communication, as defined in the SFF-8472[2].
FCCG125SD1Cxx Product Specification Finisar Corporation - November 2018 Rev. B2 Page 4 V. General Specifications Parameter Symbol Min Typ Max Units Ref. Bit Rate BR 25.78125 Gb/s Bit Error Ratio BER 10-8 1 Notes: 1. Pre-FEC, tested with a PRBS 231 – 1. VI. Connectivity Diagnostics® Technology Finisar FCCG125SD1Cxx are equipped with Connectivity Diagnostics ®, which combines the pull-tabs’ LED lights with the out-of-band signaling between the transceivers at the two ends of the AOC. Three features are currently implemented: Helps locate the other end of the AOC. Manually pushing-in either pull tab will light up their LED lights on both ends. Reports the health status of the AOC. Any Digital Diagnostic Monitoring warning/alarm events, transmitter ’s fault or receiver’s loss of signal, will light up the pull-tab LED lights of both ends. Allows the host to control the AOC pull-tabs’ LED lights. Writing a command via the 2-wire communication interface of the near-end AOC transceiver will light up the pull -tabs’ LED lights of both ends. A detail ed description of Connectivity Diagnostics ® is provided in Finisar’s Application Note AN-2158[6]. VII. Environmental Specifications The following table shows the operating temperature range of the FCCG125SD1Cxx: Parameter Symbol Min Typ Max Units Ref. Case Operating Temperature Top 0 70 °C VIII. Regulatory Compliance The FCCG125SD1Cxx SFPwire®, which contains laser devices, is a Class 1 laser product and complies with 21CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007, and it complies with EN(IEC) 60825 Edition 1.2 regulations. The 25G SFPwire® is RoHS compliant per Directive 2011/65/EU[4,5]. Copies of certificates are available at Finisar Corporation upon request.
light is not lit up, or amber, when illuminated. Figure 2. FCCG125SD1Cxx Mechanical Dimensions.
FCCG125SD1Cxx Product Specification Finisar Corporation - November 2018 Rev. B2 Page 6 FCCG125SD1Cxx SFPwire® cable details Description Min Typ Max Units Notes Jacket Material PVC PVC Jacket Color Orange Aqua available upon request Flammability Rating OFNR Plenum Cable option available upon request Outer Diameter 2.8 3.0 3.2 mm Tensile Load (Short Term) 200 N Tensile Load (Long Term) 100 N Crush Resistance 10 N/mm FOTP-41 Impact Resistance 0.5 N·m FOTP-25 Flexing 300 Cycles FOTP-104 Twist Bend Exceeds FOTP-85 Cable to SFP+ Plug Connection 90 Newtons Bend Radius (Short Term) 25 mm Bend Radius (Long Term) 30 mm Durability 100 Cycle Min
FCCG125SD1Cxx Product Specification Finisar Corporation - November 2018 Rev. B2 Page 7 X. PCB Layout and Bezel Recommendations
FCCG125SD1Cxx Product Specification Finisar Corporation - November 2018 Rev. B2 Page 8 Figure 3.
FCCG125SD1Cxx Product Specification Finisar Corporation - November 2018 Rev. B2 Page 9 Figure 4.
FCCG125SD1Cxx Product Specification Finisar Corporation - November 2018 Rev. B2 Page 10 XI. Host - Active optical cable end Interface Block Diagram Figure 5.
FCCG125SD1Cxx Product Specification Finisar Corporation - November 2018 Rev. B2 Page 11 XII. References 1. “Specifications for Enhanced 8.5 and 10 Gigabit Small Form Factor Pluggable Module ‘SFP+ ‘”, SFF Document Number SFF-8431, Revision 4.1. 2. “Improved Pluggable Formfactor”, SFF Document Number SFF -8432, Revision 4.2, April 18, 2007. 3. Directive 2011/65/EU of the European Parliament and of the Council “on the restriction of the use of certain hazardous substances in elec trical and electronic e quipment”. Certain products may use one or more exemption as allowed by the directive. 4. “Application Note AN -2038: Finisar Implementation of RoHS Compliant Transceivers”, Finisar Corporation, January 21, 2005. 5. “Diagnostic Monitoring Interface for Optical Transceivers”, SFF Document Number SFF-8472, revision 12.2, November 21, 2014. 6. “Application Note AN-2158: Finisar’s Connectivity Diagnostics® for Active Optical Cables” Finisar Corporation, rev. B5, April 2017. 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