40G QSFP+ ER4 40km AOC DAC Cable SMF 1310nm DOM LC
40G QSFP+ ER4 40km SMF 1310nm DOM Optical Transceiver Module LC
Description of Optical Module
40GBASE LR4 QSFP+ is designed to operate over single-mode fiber system using 4X10 CWDM channel in 1310 band and links up to 10km.The module converts 4 inputs channel of 10Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 40Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data.The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm. It contains a duplex LC connector for the optical interface and a 38-pin connector for the electrical interface. Single-mode fiber (SMF) is applied in this module. This product converts the 4-channel 10Gb/s electrical input data into CWDM optical signals (light), by a 4-wavelength Distributed Feedback Laser (DFB) array. The 4 wavelengths are multiplexed into a single 40Gb/s data, propagating out of the transmitter module via the SMF. The receiver module accepts the 40Gb/s optical signals input, and de-multiplexes it into 4 CWDM 10Gb/s channels. Each wavelength light is collected by a discrete photo diode, and then outputted as electric data after amplified by a TIA.
Specification of Optical Module
| Part Number | Product Description |
| QSFP-40G-SR4 | QSFP+, 40Gb/s, 40GBASE-SR4, MMF, 850nm, 100M |
| QSFP-40G-CSR4 | QSFP+, 40Gb/s, 40GBASE-SR4, MMF, 850nm, 300M/400M |
| QSFP-40G-LR4 | QSFP+, 40Gb/s, 40GBASE-LR4, SMF, 1310nm, 10KM |
| QSFP-40G-ER4 | QSFP+, 40Gb/s, 40GBASE-ER4, SMF, 1270~1330, LC CWDM4 |
| QSFP-100G-SR4 | QSFP+, 100Gb/s, 100GBASE-SR4, MMF, 850nm, 100M |
| QSFP-100G-LR4 | QSFP+, 100Gb/s, 100GBASE-LR4, SMF, 1310nm, 10KM |
Features of Optical Module
4 CWDM lanes MUX/DEMUX design
Up to 11.2Gbps per channel bandwidth
Aggregate bandwidth of > 40Gbps
Duplex LC connector
Compliant with 40G Ethernet IEEE802.3ba and 40GBASE-ER4 Standard
QSFP MSA compliant
APD photo-detector
Up to 40 km transmission
Compliant with QDR/DDR Infiniband data rates
Single +3.3V power supply operating
Built-in digital diagnostic functions
Temperature range 0°C to 70°C
RoHS Compliant Part
Application of Optical Module
Rack to rack
Data centers Switches and Routers
Metro networks
Switches and Routers
40G BASE-ER4 Ethernet Links





2. Factory outlet
3. Large product inventory with massive production line
4. Quality guarantee
5. One to one special after-sales service
Yes, we welcome sample order for you to test and check the quality. Mixed samples are acceptable as well.
2. How to Store the Optical Fiber Cable Properly?
Store the drum indoor before using, the drum should place sideways not on the end.
3. How much will the shipping cost be?
It depends on the weight, volume and mode of transportation of your goods. We will choose the most suitable method according to your requirements.
4. Can you supply OEM products under our brand?
Yes, we are manufacturer, we accept OEM service, you just need send us your detailed requirements.
5. Is there any discount on the product?
We have several production promotion activities every month, welcome to inquire.
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