SFP transceiver CBO J4858C-BO 1250 Mbit/s 850 nm multimode

The BlueOptics SFP transceiver J4858C-BO is a compact optical module designed for short-range multimode fiber links. It supports a data rate of 1250 Mbit/s and operates at an 850 nm wavelength, making it suitable for standard Gigabit Ethernet and fibre channel applications over multimode cabling. The module is hot-pluggable and intended for installation in compatible SFP ports on switches, routers and other networking equipment to provide reliable optical connectivity for short distances.

Advantages

This SFP transceiver delivers a predictable 1250 Mbit/s throughput and uses a common 850 nm VCSEL light source optimized for multimode fiber, enabling stable short-range performance. Its hot-pluggable design permits field replacement without powering down equipment, reducing maintenance windows. The compact SFP form factor conserves port space and is compatible with standard SFP cages on a wide range of network devices. The module is engineered for straightforward integration into existing multimode fiber links to restore or extend optical interfaces.

Suitable for

• Short-range Gigabit Ethernet connections over multimode fiber
• Interconnects between switches and routers within a data center or campus
• Repair or replacement of optical SFP ports on networking equipment
• Linking fiber patch panels and distribution frames in local installations

Key specifications

• Data rate: 1250 Mbit/s
• Wavelength: 850 nm
• Fiber type: Multimode
• Form factor: SFP (small form-factor pluggable), hot-pluggable
• Typical application: Short-range optical links (horizontal and intra-building)

How to use

Before installation, verify that the target device supports standard SFP modules and that the multimode fiber type and connector match the transceiver. With equipment powered according to the manufacturer's guidance, insert the SFP module into the SFP cage until it seats firmly and lock any retention mechanism if present. Connect the appropriate multimode fiber patch cable, ensuring correct end-face cleanliness and polarity. After insertion, confirm link status via device LEDs or management interface and monitor for stable signal and expected data rate.

Usage recommendations

Maintain proper fiber handling: clean connectors before mating, avoid tight bends in multimode cable, and use compatible fiber patch cords. For best results in short-range installations, match the transceiver to multimode patching (OM1/OM2/OM3/OM4 as supported by your cabling) and monitor link integrity after deployment.