
Description
F-tone Networks QSFP+ to 8 x LC Connector Breakout Optical Cable are a high performance, low power consumption, long reach interconnect solution supporting 40G Ethernet, fiber channel and PCIe. It is compliant with the QSFP MSA and IEEE P802.3ba 40GBASE-SR4.
F-tone Networks QSFP+ Breakout Cable is an assembly of 4 full-duplex lanes, where each lane is capable of transmitting data at rates up to 10Gb/s, providing an aggregated rate of 40Gb/s.
QSFP+ Breakout Cable are suitable for short distances and offer a highly cost-effective way to connect within racks and across adjacent racks. These breakout cables connect to a 40G QSFP+ port of a switch on one end and to four 10G SFP+ Transceivers of a switch on the other end.
Features
- Full duplex 4 channel 850nm parallel active optical cable
- Transmission data rate up to 10.3Gbit/s per channel
- SFF-8436 QSFP+ compliant
- Hot pluggable electrical interface
- Differential AC-coupled high speed data interface
- 4 channels 850nm VCSEL array
- 4 channels PIN photo detector array
- Maximum link length of 300m on OM3 Multimode Fiber (MMF)and 400m on OM4 MMF
- Low power consumption
- Housing isolated from connector ground
- 3V power supply voltage
- RoHS 6 compliant
- Case operating temperature
     Commercial: 0 ~ +70℃
     Industrial: -40 ~ +85℃
Applications
- Infiniband transmission at 4ch SDR, DDR and QDR
- 40GBASE-SR4 40G Ethernet
- Data Centers
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit | 
| Supply Voltage | Vcc | -0.3 | 3.6 | V | 
| Input Voltage | Vin | -0.3 | Vcc+0.3 | V | 
| Storage Temperature | Tst | -20 | 85 | ºC | 
| Case Operating Temperature | Top | 0 | 70 | ºC | 
| Humidity(non-condensing) | Rh | 5 | 95 | % | 
Recommended Operating Conditions
| Parameter | Symbol | Min | Typical | Max | Unit | 
| Supply Voltage | Vcc | 3.13 | 3.3 | 3.47 | V | 
| Operating Case temperature | Tca | 0 | 70 | ºC | |
| Data Rate Per Lane | fd | 2.5 | 10.3 | Gbps | |
| Humidity | Rh | 5 | 85 | % | |
| Power Dissipation | Pm | 1.5 | W | ||
| Fiber Bend Radius | Rb | 3 | cm | 
Specifications
| Parameter | Symbol | Min | Typical | Max | Unit | 
| Differential input impedance | Zin | 90 | 100 | 110 | ohm | 
| Differential Output impedance | Zout | 90 | 100 | 110 | ohm | 
| Differential input voltage amplitude | ΔVin | 180 | 1200 | mVp-p | |
| Differential output voltage amplitude | ΔVout | 500 | 800 | mVp-p | |
| Skew | Sw | 300 | ps | ||
| Bit Error Rate | BR | E-12 | |||
| Input Logic Level High | VIH | 2.0 | VCC | V | |
| Input Logic Level Low | VIL | 0 | 0.8 | V | |
| Output Logic Level High | VOH | VCC-0.5 | VCC | V | |
| Output Logic Level Low | VOL | 0 | 0.4 | V | 
Note:
1.   BER=10^-12; PRBS 2^31-1@10.3125Gbps.
2.   Differential input voltage amplitude is measured between TxNp and TxNn.
3.   Differential output voltage amplitude is measured between RxNp and RxNn.
Optical Characteristics
| Parameter | Symbol | Min | Typical | Max | Unit | Notes | |
| Transmitter | |||||||
| Centre Wavelength | λc | 840 | 850 | 860 | nm | – | |
| RMS spectral width | ∆λ | – | – | 0.65 | nm | – | |
| Average launch power, each lane | Pout | -7.6 | – | 2.4 | dBm | – | |
| Difference in launch power between any two lanes (OMA) | 4 | dB | – | ||||
| Extinction Ratio | ER | 3 | – | – | dB | – | |
| Peak power, each lane | 4 | dBm | – | ||||
| ransmitter and dispersionpenalty (TDP), each lane | TDP | 3.5 | dB | – | |||
| Average launch power of OFF transmitter, each lane | -30 | dBm | – | ||||
| Eye Mask coordinates: X1, X2, X3, Y1, Y2, Y3 | SPECIFICATION VALUES0.23, 0.34, 0.43, 0.27, 0.35, 0.4 | Hit Ratio = 5×10-5 | |||||
| Receiver | |||||||
| Centre Wavelength | λc | 840 | 850 | 860 | nm | – | |
| Stressed receiver sensitivity in OMA,each lane | -5.4 | dBm | 1 | ||||
| Maximum Average power at receiver input, each lane | 2.4 | dBm | – | ||||
| Receiver Reflectance | -12 | dB | – | ||||
| Peak power, each lane | 4 | dBm | – | ||||
| LOS Assert | -30 | dBm | – | ||||
| LOS De-Assert – OMA | -7.5 | dBm | – | ||||
| LOS Hysteresis | 0.5 | dB | – | ||||
Note:1.Measured with conformance test signal at TP3 for BER = 10e-12
Mechanical Dimensions

Ordering information
| Part Number | Product Description | 
| FTCQ-4X-SR4-8LC-xxx | xxx=different cable lengths on OM3 Multimode Fiber (MMF),0ºC ~ +70ºC | 
| FTCQ-4X-SR4-8LC-xxxI | xxx=different cable lengths on OM3 Multimode Fiber (MMF),-40ºC ~ +85ºC | 
| xx(x) | Cable Length on OM3 Multimode Fiber (MMF) | 
| 03 | 003=3m | 
| 05 | 005=5m | 
| 10 | 010=10m | 
| 20 | 020=20m | 
| 50 | 050=50m | 
| 300 | 300=300m | 
References
1. SFF-8436 QSFP+
2. Infiniband IB-4x-SX, IB-4x-DDR-SX, IB-4x-QDR-SX
3. Ethernet 40GBASE-SR4
北亿纤通 | F-tone Networks
企业邮箱:sales@f-tone.com
企业手机:19081343401
企业电话:028-85255257
企业传真:028-85977702
注:本产品有全国产化型号可选
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.et does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.ctive rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.

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