Data General 1G-SX-MM850

Description

Data General DG-1G-SX-MM850 – 1.25Gbps SFP Optical Transceiver, 550m reach

The DG-1G-SX-MM850 SFP Optical Transceiver is a cost-effective, high-speed networking module built for Gigabit Ethernet and fiber-optic networking applications. This module operates at 1.25Gbps and supports transmission up to 550m over 50/125µm MMF or 300m over 62.5/125µm MMF.

Equipped with an 850nm VCSEL laser transmitter and a PIN photodetector receiver, the SPT-P851G-S5(D)provides low power consumption, high port density, and hot-pluggable functionality for seamless network integration. It supports SFP Multi-Source Agreement (MSA) and SFF-8472 standards, ensuring wide compatibility with networking equipment.

With digital diagnostic monitoring (DDM) capabilities, it allows real-time monitoring of operating parameters, including optical power, voltage, and temperature stability. This makes it an ideal solution for data centers, fiber channel applications, switch-to-switch connections, and enterprise networking environments.

Technical Specifications:

General Features:

• Form Factor: SFP (Small Form-Factor Pluggable)
• Data Rate: 1.25Gbps
• Wavelength: 850nm VCSEL laser
• Connector Type: Duplex LC
• Transmission Distance:
  • 550m over 50/125µm MMF
  • 300m over 62.5/125µm MMF
• Hot-Pluggable: Yes
• Power Supply: 3.3V single power supply
• Power Consumption: 150mA max
• Operating Temperature:
  • Standard: 0°C to +70°C
  • Extended: -20°C to +85°C
  • Industrial: -40°C to +85°C

Performance & Compliance:

• Optical Standards: IEEE 802.3z 1000BASE-SX
• Protocols Supported:
  • Gigabit Ethernet (GbE)
  • Fiber Channel (FC)
  • Switch-to-Switch Interfaces
  • Router & Server Interfaces
• Laser Safety Compliance: IEC 60825-1 Class 1
• EMI Shielding: Fully metallic enclosure for superior EMI performance

Optical Characteristics:

• Transmitter:

  • Center Wavelength: 830 – 860nm
  • Spectral Width (RMS): 0.85nm
  • Average Optical Power: -9 to -3 dBm
  • Extinction Ratio: 9 dB min
  • Optical Rise/Fall Time: 0.26 ns

• Receiver:

  • Center Wavelength: 770 – 860nm
  • Receiver Sensitivity: -18 dBm
  • Receiver Overload: -1 dBm
  • LOS De-Assert: -20 dBm
  • LOS Assert: -30 dBm

Electrical Characteristics:

• Power Supply Voltage: 3.13V – 3.47V
• Data Input Swing Differential: 400 – 1800mV
• Differential Input Impedance: 100Ω
• Differential Output Voltage Swing: 400 – 1800mV

Applications:

• Gigabit Ethernet (1000BASE-SX) Networks
• Fiber Channel Interconnects
• Switch-to-Switch & Router Interfaces
• Storage Area Networks (SANs)
• Industrial & Enterprise Networking

The DG-1G-SX-MM850 1.25Gbps Optical Transceiver delivers high-speed, low-power, and cost-effective connectivity for modern networking infrastructures, ensuring scalability, performance, and reliability in fiber-optic communication systems.