Part number: 10334
The LM4 QSFP+ module (10334) provides a 40 Gb optical connection on a duplex single pair of fibers using single-mode fiber or multimode fiber. It is a cost-effective option for transferring data reliably up to 1 kilometer using single-mode fiber, up to 160 meters using optical multimode fiber (OM4), or up to 140 meters using optical multimode fiber (OM3).
For a complete listing of compatible cables and optical transceivers, see the Extreme Optics Compatibility website.
Transmission distances are provided as a nominal guide only. To determine achievable distances, refer to the device's optical specifications and to the specific characteristics of your fiber installation.
The following table lists specifications for the 40 Gb LM4 QSFP+ module.
| Parameter | Minimum | Maximum |
|---|---|---|
| Transmitter | ||
| Average launch power, each lane: MMF | -7.0 dBm | 4.3 dBm |
| Average launch power, each lane: SMF | -10.0 dBm | 2.3 dBm |
| Center wavelength | 1264.5 nm | 1277.5 nm |
| 1284.5 nm | 1297.5 nm | |
| 1304.5 nm | 1317.5 nm | |
| 1324.5 nm | 1337.5 nm | |
| Receiver | ||
| Stressed receiver sensitivity in OMA, each lane | -11.5 dBm | |
| Average receive power each lane: MMF | -10.0 dBm | 4.3 dBm |
| Average receive power each lane: SMF | -13.7 dBm | 2.3 dBm |
| Operating wavelength | 1264.5 nm | 1277.5 nm |
| 1284.5 nm | 1297.5 nm | |
| 1304.5 nm | 1317.5nm | |
| 1324.5 nm | 1337.5 nm | |
| FOO | ||
| Operating distance: SMF (single-mode fiber) | NA | 1 km |
| Operating distance: MMF OM4 | NA | 160 m |
| Operating distance: MMF OM3 | NA | 140 m |