Fiber Optic Module 100G 20KM QSFP28 Transceiver Single Mode Duplex
LC Connector
Optical Fiber Transceiver Advantages
► 4 lanes MUX/DEMUX design
► Integrated LAN WDM TOSA / ROSA for up to 10 km reach over
SMF
► Built-in digital diagnostic functions
► Support 100GBASE-LR4 for line rate of 103.125Gbps and OTU4
for line rate of 111.81Gbps
QSFP Optical Module Overview
The LNK-QSFP28-LR4-20 is designed with form factor,
optical/electrical connection and digital diagnostic interface
according to the QSFP28 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.
Absolute Maximum Ratings
| Parameter | Symbol | Min. | Typical | Max. | Unit |
| Storage Temperature | TS | -40 | | +85 | °C |
| Supply Voltage | VCCT, R | -0.5 | | 4 | V |
| Relative Humidity | RH | 0 | | 85 | % |
Recommended Operating Environment
Parameter | Symbol | Min. | Typical | Max. | Unit |
Case operating Temperature | TC | 0 | | +70 | °C |
Supply Voltage | VCCT, R | +3.13 | 3.3 | +3.47 | V |
Supply Current | ICC | | 1100 | 1500 | mA |
Power Dissipation | PD | | | 5 | W |
Diagnostic Monitoring Interface
Digital diagnostics monitoring function is available on all QSFP28
LR4. A 2-wire serial interface provides user to contact with
module. The structure of the memory is shown in flowing. The memory
space is arranged into a lower, single page, address space of 128
bytes and multiple upper address space pages. This structure
permits timely access to addresses in the lower page, such as
Interrupt Flags and Monitors. Less time critical time entries, such
as serial ID information and threshold settings, are available with
the Page Select function. The interface address used is A0xh and is
mainly used for time critical data like interrupt handling in order
to enable a one-time-read for all data related to an interrupt
situation. After an interrupt, IntL has been asserted, the host can
read out the flag field to determine the affected channel and type
of flag.
Ordering Information
Part Number | Product Description |
LNK-QSFP28-LR4-20 | 100G QSFP28 1310nm 20km LR4 LC |
