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40G光模塊系列
QSFP-40G-SR-BD
Compliant to the 40GbE XLPPI electrical specification per IEEE 802.3ba-2010
Compliant to QSFP+ SFF-8436 Specification
Operates at 10.3125 Gbps per electrical channel with 64b/66b encoded data
QSFP MSA compliant
Capable of over 100m transmission on OM3 Multimode Fiber (MMF) and 150m on OM4 MMF
Single +3.3V power supply operating
RoHS Compliant Part
Utilizes a standard LC duplex fiber cable allowing the reuse of existing cable infrastructure
Supports 40 Gigabit Ethernet interconnects, Datacom/Telecom switch & router connections, Data aggregation, and backplane applications.
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40G QSFP+ SR Bi-Directional Transceiver Module (850nm, 900nm MMF 100m/150m Duplex LC )

QSFP-40G-SR-BD 40G QSFP+ SR Bi-Directional is a Four-Channel, Pluggable, LC Duplex, Fiber-Optic QSFP+ Transceiver for 40 Gigabit Ethernet Applications. This transceiver is a high-performance module for short-range duplex data communication and interconnects applications. It integrates four electrical data lanes in each direction into transmission over a single LC duplex fiber optic cable. Each electrical lane operates at 10.3125 Gbps and conforms to the 40GE XLPPI interface.

40G BIDI QSFP+光模塊
1. 什么是QSFP-40G-SR-BD光模塊?
QSFP-40G-SR-BD光模塊的傳輸波長為850nm和900nm,具有兩個(gè)20Gbps光信號(hào)收發(fā)通道,每個(gè)信號(hào)通道可以通過一根多模光纖同時(shí)發(fā)射和接收不同傳輸波長。

2.QSFP-40G-SR-BD與QSFP-40G-SR4的不同:

QSFP-40G-SR4光模塊的封裝類型為QSFP+,接口類型為MPO,與OM3光纖跳線搭配使用時(shí)傳輸距離最遠(yuǎn)可達(dá)100米;與OM4光纖跳線搭配使用時(shí),傳輸距離最遠(yuǎn)可達(dá)150米。QSFP-40G-SR4光模塊不僅可以通過連接12芯MTP/MPO光纖跳線實(shí)現(xiàn)40G傳輸,還可以通過連接8芯MPO-LC分支線纜實(shí)現(xiàn)4x10G傳輸。

QSFP-40G-SR-BD光模塊的封裝類型為QSFP+,接口類型為LC,與OM3光纖跳線搭配使用時(shí),傳輸距離最遠(yuǎn)可達(dá)100米;與OM4光纖跳線搭配使用時(shí),傳輸距離最遠(yuǎn)可達(dá)150米。QSFP-40G-SR-BD光模塊可以利用10G布線系統(tǒng)中多模OM3雙工LC光纖跳線,快速搭建40G網(wǎng)絡(luò),無需添加光纖適配盒。

40G SR4光模塊是8個(gè)獨(dú)立的光通道,4發(fā)4收,每個(gè)通道傳輸10Gbps速率,所以常用MPO-12光纖跳線來實(shí)現(xiàn)40G傳輸。但QSFP-40G-SR-BD只需使用2個(gè)20G通道即可實(shí)現(xiàn)此功能。

而對(duì)于40G BiDi SR光模塊來說,其只有2個(gè)通道,每個(gè)通道傳輸20Gbps速率,使用WDM技術(shù),可以使每個(gè)通道同時(shí)發(fā)射和接收來自同一根光纖上的不同波長的光信號(hào)。所以40G BiDi SR光模塊使用的是雙工LC光纖跳線實(shí)現(xiàn)40G傳輸。

40G BiDi SR光模塊原理
40G BiDi SR光模塊傳輸波長為850nm和900nm,采用WDM波分復(fù)用技術(shù),將不同波長的20G光信號(hào)復(fù)用在同一根光纖中進(jìn)行傳輸,其原理如下圖所示。
注:BIDI光模塊必須成對(duì)使用,才能實(shí)現(xiàn)數(shù)據(jù)的雙向傳輸

技術(shù)規(guī)格:

P/N

QSFP-40G-SR-BD

Vendor Name

OEM

Form Factor

QSFP+

Max Data Rate

40Gbps

Wavelength

850nm, 900nm

Max Distance

100m @OM3/150m @OM4

Connector

Duplex LC

Transmitter Type

VCSEL 850nm

Cable Type

MMF

Receiver Type

PIN

TX Power

-4.0~+5.0dBm

Receiver Sensitivity

< -6.0dBm

Protocols

40G Ethernet, IEEE802.3ba-2010, MSA Compliant

Operation Temperature

0 to 70°C (32 to 158°F)


40 Gigabit Ethernet interconnects
Datacom/Telecom switch & router connections
Data aggregation and backplane applications

Proprietary protocol and density applications