Product Details
QSFP Fiber Transceiver 40G Multimode 850nm MTP MPO Connector 300M
40G QSFP+ Transceiver Advantages
► 4 independent full-duplex channels
► TX input and RX output CDR retiming
► CML compatible electrical I/O
► MTP/MPO optical connector
► Built-in digital diagnostic functions
Technical Indexes
Parameter | Symbol | Min | Typ | Max | Unit | Note |
Data Rate per Channel | | - | 10.3125 | 11.2 | Gbps | |
Power Consumption | | - | 2.5 | 3.5 | W | |
Supply Current | Icc | | 0.75 | 1.0 | A | |
Control I/O Voltage-High | VIH | 2.0 | | Vcc | V | |
Control I/O Voltage-Low | VIL | 0 | | 0.7 | V | |
Inter-Channel Skew | TSK | | | 150 | Ps | |
RESETL Duration | | | 10 | | Us | |
RESETL De-assert time | | | | 100 | ms | |
Power On Time | | | | 100 | ms | |
Transmitter |
Single Ended Output Voltage Tolerance | | 0.3 | | 4 | V | 1 |
Common mode Voltage Tolerance | | 15 | | | mV | |
Transmit Input Diff Voltage | VI | 120 | | 1200 | mV | |
Transmit Input Diff Impedance | ZIN | 80 | 100 | 120 | | |
Data Dependent Input Jitter | DDJ | | | 0.1 | UI | |
Data Input Total Jitter | TJ | | | 0.28 | UI | |
Receiver |
Single Ended Output Voltage Tolerance | | 0.3 | | 4 | V | |
Rx Output Diff Voltage | Vo | | 600 | 800 | mV | |
Rx Output Rise and Fall Voltage | Tr/Tf | | | 35 | ps | 1 |
Total Jitter | TJ | | | 0.7 | UI | |
Deterministic Jitter | DJ | | | 0.42 | UI | |
Overview
The LNK-QSFP-CSR4 is designed with form factor, optical/electrical
connection and digital diagnostic interface according to the QSFP
Multi-Source Agreement (MSA). It has been designed to meet the
harshest external operating conditions including temperature,
humidity and EMI interference. The module offers very high
functionality and feature integration, accessible via a two-wire
serial interface.
Ordering Information
Part Number | Description |
LNK-QSFP-CSR4 | 40G QSFP+ 850nm 300m CSR4 MPO |
Company Profile
Established in 2001 & headquartered in Shenzhen, E-link China
Technology Co., Ltd. (E-link) is a leading manufacturer of fiber optic communication and video transmission products in China.
Our main products include:

- Fiber Media Converters
- Industrial Ethernet PoE switchs
- PoE Injectors & Splitters
- PoE Extenders
- Serial Fiber Converters
- SFP Transceivers
- HDMI Fiber Converters
- DVI Fiber Converters
- HD/3G/6G/12G Fiber Extenders
- CCTV Fiber Optic Converters
- HDMI/ DVI/ VGA/ SDI Ethernet Extenders
(Industrial PoE Actual Display)
With rich experience in providing high quality products in the
telecom and CCTV business, E-link has a large manufacturing factory
in Shenzhen, able to provide cost-effective solutions
to serve our customers successfully.
(Automatic Mechanical Equipment)
Since the launch of our products in domestic and international
markets, we have won a good reputation for our high-quality
products and sincere services. Our products are widely applied to
- System of Telecom
- Public Security
- Bank
- Smart City
- Public transportation
- New Energy Developing
- CCTV Monitoring Transmission
We also provide ODM & OEM services and we have cooperated with some famous companies all
over the world. Our own brand "E-link" is also well known in many countries and have distributors there.
(Customer visit)
E-Link quality:
- ISO9001 Quality System
- CE, RoHS, FCC certified
- 48 hours of weathering test before delivery
- Conduct full-spectrum environmental and electrical testing on all
product designs

Our knowledgeable sales, technical support and engineering
personnel are dedicated to understanding your needs and designing
products and solutions to meet your needs. We would be happy to
provide you with the best price, quality products and fast
delivery.