The J4858D is a 1000BASE-SX SFP (Small Form-Factor Pluggable) transceiver compatible with HPE Aruba networking equipment. It provides 1.25 Gbps connectivity over multimode fiber with a wavelength of 850nm, supporting distances up to 550m over 50/125µm OM2 multimode fiber.
This hot-pluggable transceiver features digital diagnostic monitoring (DDOM) for real-time parameter tracking, enabling network administrators to monitor real-time parameters such as temperature, voltage, current, optical output power, and input power. This capability is essential for proactive network maintenance and troubleshooting.
The J4858D uses 850nm VCSEL technology for reliable optical performance over multimode fiber. It is compliant with IEEE 802.3z 1000BASE-SX standards, SFF-8472 MSA for digital diagnostic monitoring, and SFP MSA for mechanical and electrical specifications.
| Specification | Details |
|---|---|
| Product Number | J4858D |
| Compatible Brand | HPE Aruba |
| Form Factor | SFP |
| Data Rate | 1.25 Gbps |
| Wavelength | 850nm |
| Fiber Type | Multimode (MMF) |
| Connector Type | LC Duplex |
| Maximum Distance | 550m (50/125µm OM2), 275m (62.5/125µm OM1) |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| Transmit Power | -9.5 to -3 dBm |
| Receive Sensitivity | < -17 dBm |
| Power Consumption | ≤ 0.8W |
| DDM/DOM Support | Yes |
| Operating Temperature | 0°C to 70°C (32°F to 158°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Protocols | IEEE 802.3z, SFF-8472, SFP MSA |
| Warranty | Limited Lifetime Warranty |
The J4858D is fully compliant with IEEE 802.3z 1000BASE-SX standards, ensuring reliable interoperability with HPE Aruba networking equipment.
The standard SFP form factor supports hot-swapping without network disruption, enabling easy installation and replacement without powering down the switch.
Built-in DDM/DOM support provides real-time monitoring of temperature, voltage, current, optical output power, and input power for proactive network maintenance.
Uses Vertical-Cavity Surface-Emitting Laser (VCSEL) technology for reliable optical performance over multimode fiber.
Consumes ≤ 0.8W of power, minimizing the power budget impact on the host switch.
Ideal for short-distance fiber connections up to 550m within the same building or campus using multimode fiber.
Perfect for connecting network devices between buildings on the same campus using multimode fiber infrastructure.
Suitable for data center top-of-rack to end-of-row connections where multimode fiber is installed.
Can be deployed on existing multimode fiber infrastructure (OM1 or OM2) for cost-effective network upgrades.