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Description
Features of 40Gbase ESR4 Transceiver
- Supports 41.2Gbps aggregate bit rates
- 3Gbps 850nm VCSEL transmitter and PIN receiver
- Maximum link length of 300m on OM3 MMF and 400m on OM4 MMF
- Single MPO receptacle
- Hot pluggableQSFP+ form factor
- Power dissipation < 1.5W
- All-metal housing for superior EMI performance
- RoHS6 compliant (lead free)
- Operating case temperature: Commercial: 0ºC to +70°C
ESR4 Transceiver Application
- Interconnection between machine rooms within the data center;
- Mixed networking with 10G network;
- Upgrade 10G network to 40G (in old usage scenarios);
- 40G Ethernet and InfiniBand Applications
Transceiver Standards
- Compliant with QSFP+ MSA
- Compliant with SFF-8636
- Compatible with IEEE802.3ba
ESR4 Transceiver Optical Parameters
| Parameter | Symbol | Min. | Typical | Max. | Unit | Note |
| Transmitter Section | ||||||
| Lane Centre Wavelength (range) | λC | 840 | 860 | nm | ||
| Spectral Width (RMS) | σ | 0.65 | nm | |||
| Average Optical Power per Lane | Pout | -7.6 | +2.4 | dBm | 1 | |
| OMA Power per Lane | OMA | -5.6 | 3 | dBm | 1 | |
| Laser Off Power per Lane | Poff | – | – | -30 | dBm | |
| Extinction Ratio | ER | 3 | – | – | dB | 2 |
| Relative Intensity Noise | RIN | – | – | -128 | dB/Hz | |
| Optical Return Loss Tolerance | – | – | 12 | dB | ||
| Transmitter eye mask definition {X1, X2, X3, Y1, Y2, Y3} | Compliant with IEEE802.3ba {0.23 0.34, 0.43, 0.27, 0.35, 0.4} | 2 | ||||
| Receiver Section | ||||||
| Lane Center Wavelength (range) | λC | 840 | 860 | nm | ||
| Average Receiver Power per Lane | RXPX | -9.5 | 2.4 | dBm | 3 | |
| OMA Stressed Sensitivity per Lane | RXsens | -5.4 | dBm | 3 | ||
| Los Assert | LOSA | -30 | – | – | dBm | |
| Los Dessert | LOSD | – | – | -13 | dBm | |
| Los Hysteresis | LOSH | 0.5 | – | 5 | dB | |
| Overload per Lane | Pin-max | – | – | 2.4 | dBm | 3 |
| Receiver Reflectance | – | – | -12 | dB | ||
| Damage Threshold per Lane | – | – | 3.5 | dBm | ||
- The optical power is launched into 50/125µm MMF.
- Measured with a PRBS 231-1test pattern @10.3125Gbps.
- Measured with a PRBS 231-1test pattern @10.3125Gbps, ER=3dB, BER <10-12.
Ordering Information
| Part Number | Product Description |
| QSFP-40G-ESR4 | 40Gbps QSFP+ SR4, 300m on MMF(OM3), MPO receptacle, 0ºC ~ +70ºC, With DDM. |
