Specification Sheet

J4858C -HN
1000BASE-SX SFP 850nm, 55
0m, MMF
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J4858C HP Compatible
1000BASE-SX SFP Transceiver
Features
• Supports 1000BASE Ethernet
• Transmission distance up to 550m with 50/125 um MMF
• 300 meters on 62.5/125 um MMF
• Hot-Swappable if your device supports
• Lifetime Warranty
• Plugs into SFP port
• Industry-standard LC duplex connector
• Compliant to SFP Electrical & Mechanical MSA
• 0°C to +70°C case operating temperature range
• Laser Class 1 IEC / CDRH compliant
• RoHS 6/6 compliant
• Compliant with product safety standards
Product Overview
The Hummingbird Networks 100% HP Compatible J4858C optical transceiver module is for transmission
at 850nm over multimode fiber. It supports Ethernet standards which make it ideally suited for
1000BASE-SX data communications. It offers customers a wide variety of Gigabit Ethernet connectivity
options for data center, enterprise wiring closet, and service provider transport applications.
Its sub watt power consumption and its excellent EMI performance allow system design with high port
density. The small form factor integrates an 850nm vertical cavity surface emitting laser (VCSEL) in an LC
package and the receiver section uses an integrated GaAs detector preamplifier (IDP). Module is lead
free, RoHS compliant and is designed and tested in accordance with industry safety standards.
Ordering Information
Part No. Data Rate Laser Fiber Type Distance Optical Interface DDMI
J4858C-HN 1.25Gbps 850nm MMF 550m LC YES
Supported Standards
Application Standard Data Rate
Gigabit Ethernet 1000BASE-SX 1.25Gbps
Optical Characteristics
Parameter Conditions Min Modal Bandwidth (MHz*km) Symbol Units
Operating
Range
62.5 µm MMF
50 µm MMF
300
550 lOP m