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- Description
- Specifications
HPE PartSurfer lists both the J4858C and the J4858B as the HPE X121 1G SFP LC SX Transceiver. It is a small form-factor pluggable (SFP) Gigabit SX transceiver with one LC 1000BASE-SX port, full duplex only, for multimode fiber.
HPE's specification gives the reach by fiber: 220 m on 62.5 µm fiber at 160 MHz*km, 275 m on 62.5 µm at 200 MHz*km, 500 m on 50 µm at 400 MHz*km and 550 m on 50 µm at 500 MHz*km. The cabling is 62.5/125 or 50/125 µm graded-index multimode fiber, and the cable length range is 2 to 550 m.
The module measures 5.69 x 1.37 x 1.22 cm and weighs 0.02 kg. Typical power consumption is 0.4 W and maximum is 0.7 W. It operates from 0 to 70 °C at 5 to 85 percent non-condensing humidity, stores from -40 to 85 °C and works up to 3 km altitude.
PartSurfer gives spare number J4858-69201 for both numbers, and also lists the older J4858-69101 ProCurve Gigabit-SX-LC mini-GBIC module under the J4858B. HP support for the J4858B ended on 30 November 2020. The current revision has its own page, J4858D; for the long-wave version see J4859C, and browse the modules category for more.
Related part: J8177C HPE X121 1G SFP RJ45 T Transceiver
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| Part number | J4858C |
| Also sold as | J4858B |
| Product | HPE X121 1G SFP LC SX Transceiver |
| Ports | 1 LC 1000BASE-SX, full duplex only |
| Form factor | SFP |
| Fiber | multimode 62.5/125 or 50/125 µm, 2-550 m |
| Reach | 220 m / 275 m (62.5 µm), 500 m / 550 m (50 µm) |
| Dimensions | 5.69 x 1.37 x 1.22 cm |
| Weight | 0.02 kg |
| Power | 0.4 W typical, 0.7 W maximum |
| Operating temperature | 0 to 70 C |
| Humidity | 5 to 85% non-condensing |
| Spare part | J4858-69201 |