The working principle of 40G QSFP+ LR4 optical transceiver is that the laser driver controls the arriving wavelength, and the optical signal passes through the multiplexer and is combined for transmission. When reaching the receiving end, these transmitted signals are demultiplexed into four channels with a transmission rate of 10Gbps, and then the PIN detector or transimpedance amplifier restores the data stream, and then transmits the optical signal.
The Cisco QSFP-40GE-LR4 Compatible QSFP+ Optical Transceiver Module is designed for use in 40GBASE Ethernet throughput up to 10km over single mode fiber (SMF) using a wavelength of 1310nm via duplex LC connectors. This transceiver is compliant with QSFP+ MSA and IEEE 802.3ba 40GBASE-LR4 and OTU3 C4S1-2D1 standard. Digital diagnostics functions are also available via the I2C interface, as specified by the QSFP+ MSA, to allow access to real-time operating parameters. With these features, this easy to install, hot swappable transceiver is suitable to be used in various applications, such as data centers, high-performance computing networks, enterprise core and distribution layer applications.
40G Connectivity for Data Center
40G QSFP+ optical module provides high-density and low-power 40G Ethernet connection transmission applications.
Tested in Host Devices for Proven Interoperability
40G SR4 QSFP+ optical module complies with 802.ba D3.2 (40GBASE-SR4) standard and can be connected to MPO/MTP fiber optic connectors for 40G transmission applications.
In data centers, high-performance computing networks, enterprise core layer and distribution layer application scenarios, 40G QSFP+ optical modules provide high-density and low-power 40G Ethernet connection transmission applications.
Actually, 40G-SR4 modules adopted MTP/MPO-12 Male connectors, but only 8 fiber strands are required, 4 fibers are idle in the connection, so you can use both 8 fibers and 12 fibers MTP cables.
QSFP+ LR4 40G 10KM transceiver primarily enables high-bandwidth 40G optical links over duplex single mode fiber patch cable with LC connectors or MPO trunk cables.
Unitekfiber supply a huge volume of optic transceiver modules, most of transceiver modules have a short lead time, 5-7days.
Unitekfiber's optical modules are compatible with Fiberhome, Huawei, ZTE, Cisco, Ericsson, Nokia and other brands.
Very good service and quality.
The fiber cable was very easy to pull both indoor & outdoor. It's not stiff, went thru conduits nicely.