Overview
Emissions And Stack QSFP 40G adopts duplex LC interface and is generally used in single-mode applications. These two kinds of optical modules have four independent optical signal receiving and transmitting channels and need to use WDM technology to multiplex and demultiplex the optical signals, to realize the transmission of optical signals on long-distance single-mode optical fibers. The transmission distance of 40G BASE-LR4 optical modules can reach 6.22 mi (10 km), while the transmission distance of 40G BASE-ER4 optical modules is longer.
Technical Specification
| Transceiver form factor | QSFP+ |
| Transmission speed | 40 GE |
| Standards compliance | 40 GBASE-ER4 |
| Connector type | LC |
| Applicable cable | Single-mode fiber |
| Maximum transmission distance | 24.85 mi (40 km) |
| Transmit power | -2.7 dB to +4.5 dB |
| Maximum receiver sensitivity | -19.5 dB |
| Overload power | -4.5 dB |
| Extinction ratio | 5.5 dB |
| Center wavelength | 1271 nm, 1291 nm, 1311 nm, 1331 nm |
| Operating temperature | 32 °F to 158 °F (0 °C to 70 °C) |
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