Grandstream F-MM850-550M-1.25G | 1.25Gbps Multimode SFP Fiber Module, 850nm, 550m

Grandstream F-MM850-550M-1.25G 1.25Gbps Multimode SFP Fiber Module

The Grandstream F-MM850-550M-1.25G is a high-quality 1.25Gbps multimode SFP fiber module designed for Gigabit Ethernet optical network connections. It provides reliable fiber connectivity over multimode fiber and is suitable for enterprise LAN networks, network switches, fiber aggregation links and other compatible optical networking equipment.

Operating at a nominal wavelength of 850nm, the F-MM850-550M-1.25G supports a data rate of 1.25Gbps and uses a Duplex LC connector. It provides a transfer distance of up to 550 meters over 50/125µm OM2 multimode fiber and up to 300 meters over 62.5/125µm OM1 multimode fiber.

The module features a hot-pluggable SFP design, low power consumption and integrated Digital Diagnostic Monitoring through I²C. It is designed for professional optical network installations where stable Gigabit fiber connectivity is required.

Key Features of Grandstream F-MM850-550M-1.25G

• 1.25Gbps SFP fiber module
• Multimode fiber optical transceiver
• 850nm nominal wavelength
• 550m transmission distance over OM2 fiber
• 300m transmission distance over OM1 fiber
• Duplex LC optical connector
• Hot-pluggable SFP form factor
• Integrated Digital Diagnostic Monitoring (DDM)
• I²C-based digital monitoring
• Low maximum power consumption of 0.8W
• 3.3V ±0.3V operating voltage
• Low EMI design
• Excellent ESD protection
• Designed for enterprise LAN and optical networking applications
• Supports SFF-8472, SFP MSA and IEEE 802.3z standards

1.25Gbps Multimode SFP Fiber Module

The Grandstream F-MM850-550M-1.25G is designed for 1.25Gbps Gigabit Ethernet fiber connectivity. It converts electrical Ethernet signals into optical signals for transmission over compatible multimode fiber infrastructure.

Its SFP form factor allows it to be installed into compatible SFP ports on network switches, routers and other networking equipment that support the required module specifications.

For organizations using Grandstream networking products, the module can be used where compatible SFP interfaces require multimode fiber connectivity.

850nm Multimode Fiber Transmission

The F-MM850-550M-1.25G operates at a nominal wavelength of 850nm and is designed specifically for multimode fiber connections.

It supports 50/125µm OM2 multimode fiber up to 550 meters and 62.5/125µm OM1 multimode fiber up to 300 meters. The actual transmission distance depends on the fiber type, link quality and network environment.

The module should be used with compatible multimode fiber rather than single-mode fiber. Using the correct fiber type and wavelength is important for achieving reliable optical connectivity.

Duplex LC Connector

The Grandstream F-MM850-550M-1.25G uses a Duplex LC connector for optical connectivity. Duplex LC fiber connections use separate optical paths for transmitting and receiving data.

When installing the module, ensure that the connected fiber cable uses compatible LC connectors and multimode fiber. For complete fiber installations, compatible networking cables and fiber accessories should be selected according to the required transmission distance and network configuration.

Hot-Pluggable SFP Design

The F-MM850-550M-1.25G uses a compact Small Form-factor Pluggable (SFP) design. Its hot-pluggable form factor allows supported network equipment to accept or replace the module without requiring a permanent internal fiber interface.

This makes SFP modules convenient for network upgrades, maintenance and deployment of fiber links where compatible SFP ports are already available.

Digital Diagnostic Monitoring

The Grandstream F-MM850-550M-1.25G supports Digital Diagnostic Monitoring (DDM) through an I²C interface. DDM-capable host equipment can use supported diagnostic information to monitor optical module operating parameters.

This capability can help network administrators with fiber link monitoring and troubleshooting when the connected networking equipment supports the required diagnostic functions.

Low Power Consumption

The F-MM850-550M-1.25G has a maximum specified power consumption of only 0.8W. Its low-power design makes it suitable for installations where multiple optical modules are deployed across network switching infrastructure.

The module operates at 3.3V ±0.3V according to Grandstream’s published specifications.

Enterprise LAN and Optical Network Applications

The Grandstream F-MM850-550M-1.25G is designed for enterprise LAN networks and other optical links requiring Gigabit multimode fiber connectivity.

Typical applications include:

• Gigabit Ethernet fiber uplinks
• Enterprise LAN fiber connections
• Switch-to-switch fiber connectivity
• Fiber aggregation links
• Building-to-building network connections within supported distances
• Server and network equipment fiber connections
• Campus network infrastructure
• Network rack fiber connectivity

Important Fiber Compatibility Information

The F-MM850-550M-1.25G is a multimode 850nm SFP module. It should be paired with compatible multimode fiber and a compatible SFP interface.

For OM2 fiber, the specified maximum transfer distance is 550 meters. For OM1 fiber, the specified maximum transfer distance is 300 meters. The module should not be treated as a 10G SFP+ module because its specified data rate is 1.25Gbps SFP.

Grandstream recommends selecting the fiber cable according to the module type and using compatible wavelength and fiber specifications for the optical connection.

Grandstream F-MM850-550M-1.25G Specifications

Grandstream F-MM850-550M-1.25G Use Cases

• Gigabit Ethernet fiber uplinks
• Enterprise LAN networks
• Multimode fiber network links
• Switch-to-switch connectivity
• Fiber aggregation
• Campus network infrastructure
• Data and communication network racks
• Building-to-building fiber connectivity
• Compatible Grandstream networking equipment

Why Choose Grandstream F-MM850-550M-1.25G?

The Grandstream F-MM850-550M-1.25G provides a practical solution for Gigabit Ethernet fiber connectivity over multimode fiber. Its 850nm wavelength, Duplex LC connector, DDM support and low 0.8W power consumption make it suitable for professional enterprise LAN and optical network deployments.

With support for up to 550 meters over OM2 multimode fiber and 300 meters over OM1 fiber, the module provides flexibility for different short- and medium-distance fiber networking requirements.

Frequently Asked Questions About Grandstream F-MM850-550M-1.25G

What is the Grandstream F-MM850-550M-1.25G?

The Grandstream F-MM850-550M-1.25G is a 1.25Gbps multimode SFP fiber module designed for Gigabit Ethernet optical networking.

What wavelength does F-MM850-550M-1.25G use?

The module uses a nominal wavelength of 850nm.

What is the maximum distance of F-MM850-550M-1.25G?

It supports up to 550 meters over 50/125µm OM2 multimode fiber and up to 300 meters over 62.5/125µm OM1 multimode fiber.

Is F-MM850-550M-1.25G a multimode SFP?

Yes. It is a multimode fiber SFP module designed for 1.25Gbps connectivity.

What connector does F-MM850-550M-1.25G use?

The module uses a Duplex LC optical connector.

Does F-MM850-550M-1.25G support DDM?

Yes. It supports integrated Digital Diagnostic Monitoring through an I²C interface.

Is F-MM850-550M-1.25G a 10G SFP+ module?

No. The F-MM850-550M-1.25G is a 1.25Gbps SFP module. It should not be confused with Grandstream’s 10Gbps SFP+ fiber modules.

What type of fiber should be used with F-MM850-550M-1.25G?

The module is designed for multimode fiber. Grandstream specifies 50/125µm OM2 fiber for up to 550 meters and 62.5/125µm OM1 fiber for up to 300 meters.

Buy Grandstream F-MM850-550M-1.25G in India

The Grandstream F-MM850-550M-1.25G 1.25Gbps Multimode SFP Fiber Module is designed for reliable Gigabit Ethernet optical connectivity over compatible multimode fiber infrastructure, providing a compact solution for enterprise LANs, fiber uplinks and professional network installations.