40 Gbps LM4 QSFP+ Optical Transceiver

Optimized, Certified Optical Transceivers for Extending Data Center Networks

Today’s enterprise data centers and networking environments are undergoing an infrastructure transformation, requiring higher speeds, greater scalability, and higher levels of performance and reliability to better meet the demands of business. As speed and performance needs increase, optical transceivers have become an integral part of overall system design. However, optical transceiver design margins and parameters vary widely, and can be the difference between an optimized, highly reliable fabric and incompatibility issues that drive up support costs.

The Brocade ® 40 Gbps LM4 Quad Small Form-Factor Pluggable (QSFP+) optical  transceiver, part of the Brocade family of optical transceivers, is optimized to fully leverage Brocade 40 Gigabit Ethernet (GbE) switches and routers. Together, these optical transceivers provide state-of-the-art performance, helping IT organizations achieve new levels of infrastructure consolidation while expanding the capabilities of  their applications and services.

Manufacturer Part Number
40G-QSFP-LM4
Full Product Specifications

Note:

  • The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
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  • These specifications may have been copied from the same product in other region/country in which case there might be minor differences in region-specific data such as Input Voltage, Terms of Warranty etc.

Systems

Performance

Ethernet: 4×10.3125 Gbps line speed, full duplex

Media

Hot-pluggable, industry-standard QSFP+, supports 140 m (on OM3) and 160 m (on OM4) using

duplex LC MMF, supports Long Wavelength (LWL) 2 km over duplex LC SMF

Operating parameters

Transmit (Tx):

Wavelength: 1264.5 to 1337.5 nm

Average power: −7.0 to +4.3 dBm per channel

RIN: −128 dB/Hz max

Optical return loss: 20 dB max

OMA: −3.0 to +4.8 dBm per channel

Receive (Rx):

Wavelength: 1264.5 to 1337.5 nm

Average power: −10.0 to +4.3 dBm per channel

Optical return loss: −20 dB max

SRS OMA: 316 μW or −5.0 dBm max per channel

3 dB cutoff maximum: 12.3 GHz

Operating Distance: 140 m (on OM3) and 160 m (on OM4) using duplex LC MMF, 2 km over duplex LC SMF

Mechanicals

Size

Width: 18.35 mm (0.72 in.)

Height: 13.0 mm (0.51 in.)

Depth (including aqua blue pull-tab): 121.9 mm (4.80 in.)

Environmentals

Storage temperature: −40°C to 85°C (−40°F to 185°F)

Power

Power dissipation (max): 3.5 W