General Description
Form Type | QSFP-40G-SR4 | Brand | HTFuture |
Encapsulation | QSFP+ | Data Rate | 44.8Gb/s |
Wavelength | 850nm | Reach | 150m |
Interface | MTP/MPO | LD | VCSEL |
Cable Type | SMF | DDM Support | Yes |
TX Power | -7.6~0.5dBm | Rx Sens | <-9.5dBm |
Temperature | 0 to 70°C (32 to 158°F) | Quality guarantee | 3 years |
Features
● 4 independent full-duplex channels
● Up to 11.2Gb/s data rate per channel
● High Reliability 850nm VCSEL technology
● MTP/MPO optical connector
● QSFP+ MSA compliant
● Electrically hot-pluggable
● Up to 100m transmission on OM3 multi-mode fiber or 150m links on OM4 multimode fiber
● RoHS compliant and lead-free
● Digital diagnostic capabilities
● Single +3.3V power supply
● Maximum power consumption 1.5W
● All-metal housing for superior EMI performance
● Case operating temperature
Commercial: 0 ~ +70oC
Industrial: -40 ~ +85oC
Applications
● 40G Ethernet
● Data Center
● Back to Back
● InfiniBand QDR, DDR and SDR
Transceiver Block Diagram
Pin Assignment and Pin Description
Mechanical Dimensions
FAQ
1. Question: Can you use a QSFP to 4xSFP+ DAC cable at just 10G with only one of the SFP+ ends?
Answer: Not exactly sure what you’re trying to get at here, but the easy rule-of-thumb here is that the transceivers at each of a fiber link need to be fundamentally the same.
Even if you’re using a four-lane transmitter at one end, the receiver at the other needs to not only also be four-lane, but in the same band, and with a matching decoder to the encoder at the TX end. Pretty much any mismatch will prevent the link from operating.
2. Question: What's the 40G LR4 transceivers max supported distances?
Answer: The 40GBASE-LR4 QSFP+ transceivers support up to 10km over single mode fibers.
3. Question: Why should I trust HTFuture compatible transceivers?
Answer: Besides the price advantage we have compared to branded transceivers, HTFuture compatible transceivers also maintain the same performance and reliability. To satisfy our customers' needs of high performance, all of our transceivers are tested multiple times in mainstream original brand switches in our test center before shipped out.
4. Question: Do you offer 40G QSFP+ transeivers that operate at an industrial temperature range?
Answer: Sorry, 40G QSFP+ transceiver that operate at an industrial temperature range are currently not available, but in development. Please stay tuned.
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