Q1: What is a 40G QSFP+ optical transceiver?
A: A 40G QSFP+ optical transceiver is a high-speed module designed to support 40 Gigabit Ethernet data transmission, commonly used in data center and enterprise network environments.
Q2: What are the differences between QSFP-40G-SR4 and QSFP-40G-LR4?
A: QSFP-40G-SR4 is designed for short-range transmission over multimode fiber using parallel optics, while QSFP-40G-LR4 supports long-distance transmission over single-mode fiber using wavelength multiplexing.
Q3: What transmission distances do QSFP-40G-SR4 and QSFP-40G-LR4 support?
A: QSFP-40G-SR4 supports up to 100m over OM3 and 150m over OM4 multimode fiber, while QSFP-40G-LR4 supports up to 10km over single-mode fiber.
Q4: Are these 40G QSFP+ modules compatible with Cisco, Juniper, and HPE equipment?
A: Yes. These 40G QSFP+ transceivers are fully compatible with Cisco, Juniper, HPE, and other major networking brands, and are coded to meet MSA and device compatibility requirements.
Q5: Are these original brand or third-party transceivers?
A: These are brand-neutral third-party 40G optical transceivers that offer the same functionality and performance as original brand modules at a more cost-effective price.
Q6: What connector types are used by QSFP-40G-SR4 and QSFP-40G-LR4?
A: QSFP-40G-SR4 uses an MPO/MTP connector, while QSFP-40G-LR4 uses a standard LC duplex connector.
Q7: What wavelengths are used by QSFP-40G-SR4 and QSFP-40G-LR4?
A: QSFP-40G-SR4 operates at an 850nm wavelength, while QSFP-40G-LR4 uses four LAN-WDM wavelengths around 1310nm.
Q8: What fiber types are required for QSFP-40G-SR4 and QSFP-40G-LR4?
A: QSFP-40G-SR4 requires multimode fiber (OM3 or OM4), while QSFP-40G-LR4 requires single-mode fiber (OS2).
Q9: Do these 40G modules support hot-swapping?
A: Yes. All 40G QSFP+ modules support hot-swappable installation, allowing replacement or upgrades without powering down network devices.
Q10: Do QSFP-40G-SR4 and QSFP-40G-LR4 support Digital Diagnostic Monitoring (DDM)?
A: Yes. Both modules support DDM, providing real-time monitoring of temperature, voltage, laser bias current, and optical power.
Q11: What applications are these 40G optical transceivers typically used for?
A: These 40G modules are commonly used in data centers, enterprise core and aggregation networks, cloud computing environments, and high-bandwidth interconnects.
Q12: Are these QSFP+ modules tested before shipment?
A: Yes. Each 40G QSFP+ transceiver is individually tested for compatibility, optical performance, and reliability before delivery.
Q13: What is the operating temperature range of these 40G modules?
A: These modules typically support a commercial operating temperature range of 0°C to 70°C, suitable for standard data center environments.
Q14: Can these 40G transceivers be customized for specific switch models?
A: Yes. The modules can be customized or pre-configured to ensure compatibility with specific switch or router models upon request.
Q15: What warranty is provided for the 40G optical transceivers?
A: All 40G optical transceivers are backed by a standard warranty and technical support to ensure long-term reliability and peace of mind.