AddOn J4858C-AO SFP transceiver 1000Base-SX 850nm 550m LC
- Transceiver
- TCP/IP
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A 40 Gbps QSFP+ transceiver for 150 m multi-mode links at 850 nm with MTP/MPO connector, MSA compliant and coded for Juniper compatibility
This Brute Networks module delivers 40 Gbps over multi-mode fibre at 850 nm with a 150 m reach. It fits a QSFP+ slot on compatible Juniper routers, switches or servers and is coded for 100 % Juniper compatibility.
The transceiver uses an MTP/MPO connector for four-lane parallel optics and provides digital output monitoring for real-time link health. MSA compliance ensures mechanical and electrical interchangeability with other MSA-standard modules.
Confirm the host device accepts QSFP+ form-factor optics and supports 850 nm multi-mode fibre rated for 150 m. The operating range is 0 °C to 70 °C, so ensure the installation environment stays within these limits.
Measured against everything we stock in SFP & SFP+ Transceiver Modules, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | Juniper |
| Model name | 40GBASE-SR4 |
| Product type | Transceiver |
| Performance | |
| Transfer speed | 40 Gbit/s |
| Connectivity | |
| Supported standards | MMF |
| Optical wavelength | 850 nm |
| Fiber mode | Multi-mode Optical Fiber |
| Maximum range | 150m |
| Ports & slots | |
| Port count | 40GBase-SR4 |
| Size & build | |
| Product weight | 2 oz |
| Environment & compliance | |
| Temperature range | 0? ~ 70? C |
| More details | |
| Indicator lights | Power, Link/Activity, Full-Duplex, and Speed |
The MTP/MPO connector and 850 nm optics are passive components with no moving parts; they do not require scheduled replacement. Inspect and clean the ferrule end-faces only if link errors appear or during planned fibre maintenance.
The 150 m reach on multi-mode fibre is the primary distance limit; the module is rated for continuous operation up to 70 °C case temperature, so thermal shutdown would occur only if chassis airflow cannot keep the case below that threshold.
The transceiver has no fan and produces no audible noise; its commercial temperature rating of 0 °C to 70 °C means the case will warm to the surrounding chassis temperature but stays within specification when the host provides normal airflow.
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