eBay

Model: Innolight T-FX4FNT-HFM (200GBASE QSFP56 FR4)

Key Features

Parameter	Specification
Form Factor	QSFP56
Data Rate	212.5 Gb/s aggregate (4 × 50G PAM4)
Standard Compliance	IEEE 802.3bs 200GBASE-FR4
MSA Compliance	QSFP56 MSA
Transmission Distance	Up to 2km on Single-Mode Fiber (SMF) with FEC
Connector Type	Duplex LC
Wavelength	4 CWDM lanes: 1271nm, 1291nm, 1311nm, 1331nm
Power Supply	Single +3.3V
Max Power Consumption	6.5W
Operating Case Temperature	0°C to 70°C
Storage Temperature	-40°C to +85°C
Management Interface	I²C with Digital Diagnostic Monitoring (DDM/DOM)
Electrical Interface	200GAUI-4
RoHS Compliance	Yes

Electrical Specifications

Parameter	Min	Typical	Max	Unit
Supply Voltage	3.135	3.3	3.465	V
Differential Input Impedance	90	100	110	Ω
Differential Output Impedance	90	100	110	Ω
Differential Input Voltage Amplitude	300	-	900	mVpp

Optical Characteristics

Transmitter Type: 4-channel CWDM EML
Receiver Type: 4-channel CWDM PIN-TIA
Fiber Type: Single-Mode Fiber (SMF)

Applications

200G Ethernet
Data Center Interconnect
Enterprise Networking
Cloud Networks

Functional Description

The module converts 4 input channels of 50Gb/s (PAM4) electrical data into 4 CWDM optical signals, which are then multiplexed into a single channel for 200Gb/s (PAM4) optical transmission . On the receiver side, it performs the reverse operation: optically de-multiplexing a 200Gb/s input into 4 CWDM channels and converting them to electrical data . Host FEC is required to support up to 2km fiber transmission.