40G QSFP+ CWDM4 2KM LC Optical Transceiver

Product Model:
EQP274X-2D
Data Rate:
40G
Wavelength:
CWDM
Distance:
2KM
Connector:
LC
Fiber Type:
SM
DDM:
Yes
Product Origin:
China
Shipping Port:
ShenZhen

Utilizing Coarse Wavelength Division Multiplexing (CWDM4) technology, it multiplexes four 10.3125 Gbps wavelengths (1271/1291/1311/1331nm) into duplex fiber pairs to achieve 41.25 Gbps aggregate bandwidth, supporting reaches up to 2 kilometers.

Lead Time/Contact Us Datasheets

Product Detail

Product Features

Transmission data rate up to 11.2Gbps per channel
QSFP+ MSA compliant
Compliant to IEEE 802.3ba specification for 40GBASE-LR4 links
4 CWDM un-cooled DFB lasers, using ITU G.694.2 wavelength grid at 1270, 1290, 1310 and 1330nm
High Sensitivity PIN-TIA with optical DEMUX
Up to 2km reach over standard single mode fiber
Compliant with QDR/DDR Infiniband data rates
Hot pluggable electricalLower power consumption <2.5W
Operating case temperature 0°C to +70°C
3.3V power supply
RoHS 6 compliant（lead free）

How to choose 40G QSFP+ optical module？

40G QSFP+ optical module refers to the transmission rate of 40G, and the package of this optical module is QSFP+. 40G optical module has four independent full-duplex transceiver channels, each channel of the transceiver rate of 10G, thus forming a 40G transmission rate, ETU LINK Optical Communication (ETU-LINK) will introduce the 40G QSFP + optical module what types are there.

IEEE organization for 40G QSFP + optical module to develop a variety of transmission protocols, common are: 40G BASE-SR4, 40G BASE-LR4, 40G BASE-BiDi, 40G BASE-ER4, etc., the interface type of these optical modules, transmission distance, working wavelength are not the same, the following is the parameter list of 40G optical modules for you reference.

ETU PN	Data Rate	Package	Wavelength (nm)	Distance	Connector	Patch cord
EQP854X-01D	40G	QSFP+	850	150m	MPO	OM4
EQP854X-04D	40G	QSFP+	850	400m	MPO	OM4
EQP314X-2D-M	40G	QSFP+	1310	2km	MPO	OS2
EQP274X-10D	40G	QSFP+	CWDM	10km	Dual LC	OS2
EQP274X-40D	40G	QSFP+	CWDM	40km	Dual LC	OS2

As shown in the table above, 40G SR4, 40G ER4 and 40G BIDI are multimode optical modules that require the use of OM3/OM4 fiber optic patch cords for transmission, which are suitable for equipment interconnection within the data center due to the short transmission distance; 40G SR4, 40G eSR4 and 40G PSM4 interface types are MPO interfaces, this type of interface can not only achieve 40G link connection, but also use MPO-LC patch cord to achieve 40G link and 10G link connection; LX4, LR4, ER4 interface type is LC, need to be used with single-mode fiber OS2 patch cord, the transmission distance is more than 2KM, the farthest is 40KM.

Related Products About 40G QSFP+


40G LR4 10KM	40G LR4 10KM (COB)	40G ER4 40KM	40G eER4 60KM	40G ZR4 80KM
40G	40G	40G	40G	40G
1271nm, 1291nm, 1311nm, 1331nm	1271nm, 1291nm, 1311nm, 1331nm	1271nm, 1291nm, 1311nm, 1331nm	1296nm, 1300nm, 1305nm, 1309nm	1296nm, 1300nm, 1305nm, 1309nm
10KM	10KM	40KM	60KM	80KM
LC	LC	LC	LC	LC
SM	SM	SM	SM	SM
DDM	DDM	DDM	DDM	DDM
COM: 0°C ~70°C IND: -40°C ~85°C	COM: 0°C ~70°C	COM: 0°C ~70°C IND: -20°C ~85°C	COM: 0°C ~70°C IND: -40°C ~85°C	COM: 0°C ~70°C IND: -40°C ~85°C

FAQ:

Q1: What is a 40G QSFP Optical Module?‌
A1: A 40G QSFP (Quad Small Form-factor Pluggable) module is a hot-swappable transceiver that supports 40Gbps data transmission. It uses a 4-channel parallel design and is widely deployed in data centers and high-performance computing networks.

Q2: What are the common types of 40G QSFP modules?‌
A2: QSFP+ SR4 (850nm multimode, 100m)
QSFP+ LR4 (1310nm single-mode, 10km)
QSFP+ ER4 (1310nm single-mode, 40km)
QSFP+ BiDi (Single-Fiber Bidirectional)

Q3: How do I check if a 40G QSFP module is compatible with my device?‌
A3: Verify three aspects:
Switch vendor compatibility lists
Matching fiber type (MMF/SMF)
Required transmission distance

Q4: How to resolve overheating in 40G QSFP modules?‌
A4: Solutions:
Ensure adequate device ventilation
Use modules with heat dissipation fins
Avoid sustained 100% bandwidth utilization

Q5: What precautions should I take when installing 40G QSFP modules?‌
A5: Key operational guidelines‌:
Clean fiber connectors‌ before insertion to prevent dust from disrupting optical signal transmission.
Ensure ‌adequate ventilation‌ around devices; reserve thermal headroom for high-heat modules.
Configure ‌port aggregation mode‌ on the switch when using breakout applications.

Q6: What's the difference between SFP, QSFP and QSFP-DD modules?‌
A6: SFP (1-25G), QSFP (40-100G), and QSFP-DD (400G+) differ in form factor and bandwidth capacity. QSFP-DD doubles QSFP28's density with 8-lane electrical interfaces.

Q7: How does ETU-Link ensure compatibility with major brands?‌
A7: We maintain a multi-vendor test lab with full protocol support (Ethernet/InfiniBand/Fibre Channel) and 100% compatibility verification before shipment

Q8: What temperature ranges do your modules support?‌
A8: Commercial grade (0°C to +70°C)
Extended grade (-20°C to +85°C)
Industrial grade (-40°C to +85°C) for harsh environments.

Q9: How does ETU-Link achieve 40G QSFP+ interoperability?‌
A9: Through:
Multi-vendor switch testing
Firmware customization for legacy equipment
MSA-compliant electrical interfaces

Q10: Do 40G QSFP+ modules support DDM/DOM monitoring?‌
A10: Standard feature including:
Real-time temperature (±1°C accuracy)
Tx/Rx power (µW/dBm display)
Laser bias current

Hot Tags :

QSFP-40G-LR4 40G QSFP Transceiver QSFP-40G-CWDM4 2KM LC Cisco 40G QSFP+ LR4 H3C 40G QSFP+ LR4 HUAWEI 40G QSFP+ LR4

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Subject : 40G QSFP+ CWDM4 2KM LC Optical Transceiver

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