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Description
Features of PSM4 Transceiver
- Supports 44Gbps aggregate bit rates
- 2Gbps 1310nm DFB transmitter
- High-sensitivity PIN-TIA receiver
- Up to 10kmon SMF
- Single MPO receptacles
- Hot pluggableQSFP+ form factor
- Power dissipation < 3.5W
- All-metal housing for superior EMI performance
- RoHS6 compliant (lead free)
- Operating case temperature: Commercial: 0ºC to +70°C
QSFP-40G-PSM4 Application
- Data Center Interconnection: Suitable for intra rack or inter rack connections between servers, switches, and routers.
- 40G Ethernet: suitable for 40GBASE-PSM4 links.
- Short to medium distance transmission: With the support of single-mode fiber, it provides a high-speed connection solution ranging from 2km to 10km.
Transceiver Standards
- Compliant with QSFP+ MSA
- Compliant with SFF-8636
- Compatible with IEEE802.3ba
Optical Parameters
| Parameter | Symbol | Min. | Typical | Max. | Unit | Note |
| Transmitter Section | ||||||
| Lane Centre Wavelength (range) | λ | 1260 | 1310 | 1355 | nm | |
| Spectral Width (-20dB) | Δλ | 1 | nm | |||
| Side Mode Suppression Ratio | SMSR | 30 | dB | |||
| Average Optical Power per Lane | Pout | -5.5 | +1.5 | dBm | 1 | |
| OMA Power per Lane | OMA | -4.5 | 2.5 | dBm | 1 | |
| Laser Off Power per Lane | Poff | – | – | -30 | dBm | |
| Extinction Ratio | ER | 3.5 | – | – | dB | 2 |
| Transmitter Reflectance | RT | – | – | -12 | dB | |
| Optical Return Loss Tolerance | – | – | 12 | dB | ||
| Transmitter eye mask definition {X1, X2, X3, Y1, Y2, Y3} | {0.25, 0.4, 0.45, 0.25, 028, 0.4} | 2 | ||||
| Receiver Section | ||||||
| Lane Center Wavelength (range) | λ | 1260 | 1355 | nm | ||
| Average Receiver Power per Lane | RXPX | -12.6 | 2.0 | dBm | 3 | |
| OMA Sensitivity per Lane | RXsens1 | -12.6 | dBm | 3 | ||
| Los Assert | LOSA | -30 | – | – | dBm | |
| Los Dessert | LOSD | – | – | -15 | dBm | |
| Los Hysteresis | LOSH | 0.5 | – | 5 | dB | |
| Overload per Lane | Pin-max | – | – | 2.0 | dBm | 3 |
| Receiver Reflectance | – | – | -12 | dB | ||
| Damage Threshold per Lane | – | – | 3.5 | dBm | ||
Notes:
- The optical power is launched into 9/125µm SMF.
- Measured with a PRBS 231-1test pattern @10.3125Gbps.
- Measured with a PRBS 231-1test pattern @10.3125Gbps, ER=4dB, BER <10-12.
Ordering Information
| Part Number | Product Description |
| QSFP-40G-PSM4-10 | 40Gbps QSFP+ PSM4, 10km on SMF, MPO receptacle, 0ºC ~ +70ºC, With DDM. |
