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| Brand Name : | Mray | 
| Model Number : | QSFP-40G-SR4 | 
| Certification : | CE, FCC, RoHs, ISO9001 | 
| Price : | Negotiable | 
| Payment Terms : | T/T, Western Union, L/C | 
| Supply Ability : | 10000pcs/day | 
| Delivery Time : | 1~2 days for samples | 
Miray’s QSFP+ optical transceiver is a parallel fiber optical module with four independent optical transmit and receive channels. The QSFP+ transceiver converts 4 inputs channels of 10Gb/s electrical data to 4 optical signals and transmits them on separate multimode fibers. Reversely, on the receiver side, the module optically receives the optical signals on 4 separate fibers and converts them to 4 channel electrical data.
| Parameter | Symbol | Unit | Min | Typ | Max | 
| Operating Case Temperature Range | Tc | oC | 0 | 70 | |
| Power Supply Voltage | Vcc | V | 3.14 | 3.3 | 3.46 | 
| Bit Rate | BR | Gb/s | 41.2 | ||
| Bit Error Ratio | BER | 10-12 | |||
| Max Supported Link Length | L | m | 300 | 
| Parameter | Symbol | Unit | Min | Typ | Max | Notes | 
| Transmitter(per Lane) | ||||||
| Signaling Speed per Lane | GBd | 10.3125 | ||||
| Lane Wavelength (range): | nm | 850 | ||||
| Total Average Launch Power | Pout | dBm | 5.0 | |||
| Transmit OMA per Lane | TxOMA | dBm | -2.5 | 3.0 | ||
| Average Launch Power per Lane | TXPx | dBm | -7 | 2.3 | ||
| Optical Extinction Ratio | ER | dB | 3.0 | |||
| Average launch power of OFF transmitter, per lane | dBm | -30 | ||||
| Relative Intensity Noise | RIN | dB/Hz | -128 | |||
| Optical Return Loss Tolerance | dB | 12 | ||||
| Receiver(per Lane) | ||||||
| Signaling Speed per Lane | GBd | 10.3125 | ||||
| Lane Wavelength (range): | nm | 850 | ||||
| Receive Power(OMA) per Lane | RxOMA | dBm | 3.5 | |||
| Average Received Power per Lane | RXPx | dBm | -13.7 | 2.3 | ||
| Receiver sensitivity (OMA), each lane (max) | dBm | -11.5 | ||||
| Stressed Receive Sensitivity(OMA) per lane | SRS | dBm | -9.6 | |||
| Damage Threshold Per Lane | Pmax | dBm | 3.4 | |||
| Return Loss | RL | -26 | ||||
| Vertical eye closure penalty, per lane | dB | 1.9 | ||||
| Receiver electrical 3dB upper cutoff frequency,per lane | GHz | 12.3 | ||||
| LOS De-Assert | LOSD | dBm | -15 | |||
| LOS Assert | LOSA | dBm | -30 | |||
| LOS Hysteresis | dB | 1 | ||||







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