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100G光模塊系列
100G QSFP28 CWDM4 (2km)
Hot-pluggable QSFP28 form-factor
4 channels full-duplex transceiver module
4x uncooled CWDM DFB transmitter and PIN ROSA
Internal CDR circuits on both receiver and transmitter channels
Non-airtight optical engine design
Compliant with QSFP28 MSA and CWDM4 MSA
Data rate up to 103.125Gbps
Reach up to 2km over G.652 SMF with KR4 FEC
Power consumption < 3.5W
Duplex LC receptacles
Operating case temperature range from 0°C to 70°C, -40°C to +85°C
3.3V power supply voltage
RoHS compliant (lead free)
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The Hotcom 100G QSFP28 CWDM4 2km optical transceiver HT-100G-QSFP28-CWDM4-02 is designed for Data Center 100G CWDM4 Ethernet links reach up to 2km with FEC over Single-Mode Fiber (SMF).

The HT-100G-CWDM4QSFP28--02 module converts 4 input channels of 25Gb/s electrical data to 4 channels of CWDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission. Reversely on the receiver side, the module de-multiplexes a 100Gb/s optical input into 4 channels of CWDM optical signals and then converts them to 4 output channels of electrical data. The central wavelengths of the 4 CWDM channels are 1271nm, 1291nm, 1311nm and 1331nm as members of the CWDM wavelength grid defined in CWDM4 MSA. The high-performance uncooled CWDM DFB transmitters and high-sensitivity PIN receivers provide superior performance for 100-Gigabit Ethernet applications up to 2km links.

Product Number

Bit Rate

100GBASE

Reach

Wavelength

Package

Temperature
Range

Data Sheet

HT-100G-QSFP28-CWDM4-02

103.125Gb/s

CWDM4

2km

CWDM4

QSFP+ with DMI

0 ~ 70°C

HT-100G-QSFP28-CWDM4-02-I

103.125Gb/s

CWDM4

2km

CWDM4

QSFP+ with DMI

-40°C to +85°C

***CWDM 4-Wavelength DFB LDs: 1271, 1291, 1311 and 1331 nm.

100G CWDM4 Ethernet Data Center Networks

QSFP-100G-CLR4100G QSFP28 CWDM4光模塊同樣為2KM,究竟有什么區(qū)別?

隨著數(shù)據(jù)中心流量的不斷激增,100G光模塊的市場需求也在進一步增加,常見的100G光模塊有SR4、LR4、ER4等,不過在實際的應用中,由于光纖鏈路長度有長有短, 單靠幾種類型的光模塊不能滿足最具性價比的數(shù)據(jù)中心光網(wǎng)絡傳輸解決方案。
因此,在中長距離中,CWDM4 MSA組織和100G CLR4聯(lián)盟也分別制定了傳輸距離為2 km的100G QSFP28 CWDM4標準和100G QSFP28 CLR4標準。那么同樣傳輸距離都為2KM的100G QSFP28 CLR4和CWDM4光模塊究竟有什么相同和不同的地方呢?下面將為大家揭曉答案。

相同之處:
1、兩者的接口類型都為雙工LC;
2、兩者都采用CWDM波分復用技術,工作波長都為1270、1290、1310、1330nm;
3、兩者都為單模光模塊,傳輸距離都為2KM。


不同之處:
100G QSFP28 CWDM4光模塊必須用于具有前向糾錯(FEC)功能的光纖鏈路。
100G QSFP28 CLR4光模塊既能用于具有前向糾錯(FEC)功能的光纖鏈路,也能用于不具有前向糾錯(FEC)功能的光纖鏈路。
而在不具有前向糾錯(FEC)功能的光纖鏈路中,100G QSFP28 CLR4光模塊也能保持低延遲和低功耗的性能。100G QSFP28 CLR4光模塊的這個特點使得其在高性能計算、高頻交易等領域更受青睞。
鴻騰光電100G QSFP28 CWDM4光模塊和100G QSFP28 CLR4光模塊是數(shù)據(jù)中心2公里傳輸應用中比較節(jié)省成本的解決方案,其中,100G QSFP28 CWDM4光模塊的在數(shù)據(jù)中心的應用更為常見。