1 Description

This product can support dual rate 40Gb/s and 100Gb/s bit rates. It is a parallel Quad Small Form-factor Pluggable (QSFP28) Bi-Direction optical module. The module integrates four host electrical data into two optical lanes (by Dual Wavelength VCSEL Bi-Directional Optical Interface, 850nm and 900nm) to allow optical communication over a 2-fiber duplex LC optical multi-mode fiber. Reversely, on the receiver side, the module de-multiplexes 2 sets of optical input signal and converts them to 4 channels of electrical data.

An optical fiber ribbon cable with an LC connector can be plugged into the QSFP28 module receptacle. Proper alignment is ensured by the guide pins inside the receptacle. The cable usually cannot be twisted for proper channel to channel alignment. Electrical connection is achieved through an MSA-compliant 38-pin edge type connector.

The module operates by a single +3.3V power supply. LVCMOS/LVTTL global control signals, suchas Module Present, Reset, Interrupt and Low Power Mode, are available with the modules. A 2-wire serial interface is available to send and receive more complex control signals, and to receive digital diagnostic information. Individual channels can be addressed and unused channels can be shut down for maximum design flexibility.

The product 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.

2 Product Features

• Compliant to the 100GbE XLPPI electrical specification per IEEE 802.3bm
• Compliant to QSFP28 SFF-8636 Specification
• Support 40GE/100GE aggregate bit rates
• Aggregate bandwidth of > 100Gbps
• Dual wavelength VCSEL bi-directional optical interface, PAM4 2 × 50-Gb/s 850nm/900 nm
• QSFP28 MSA compliant
• Capable of over 70m transmission on OM3 Multimode Fiber (MMF)and 100m on OM4 MMF
• Single +3.3V power supply operating
• With digital diagnostic functions
• Temperature range 0°C to 70°C
• RoHS Compliant Part
• Utilizes a standard LC duplex fiber cable allowing reuse of existing cable infrastructure 

3 Application Scenario

• 40G/100G Ethernet
• Datacom/Telecom switch & router connections
• Data aggregation and backplane applications
• Proprietary protocol and density applications

4 Order Information