AddOn J4858C-AO SFP transceiver 1000Base-SX 850nm 550m LC
- Transceiver
- TCP/IP
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A 1 Gbps SFP transceiver for multi-mode fibre at 1310 nm with LC connector and 2 km reach
The AddOn SFP-MX-AO is a Cisco-compatible SFP transceiver built for Gigabit Ethernet links over multi-mode fibre. It suits network engineers who need a TAA-compliant module to extend a legacy 1000Base-MX connection up to two kilometres.
This transceiver directly replaces an OEM Cisco SFP-MX part when the original fails or when a spare is required for maintenance. The jump is worth it when the installed base still runs 1000Base-MX and a cost-effective, TAA-compliant spare keeps the link running without a full infrastructure refresh.
The module operates at 1310 nm over 62.5 µm multi-mode fibre with a 2 km reach and no digital optical monitoring. Links longer than two kilometres or those requiring real-time power and temperature telemetry need a different transceiver type.
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| Product | |
|---|---|
| Brand name | AddOn - Network Upgrades |
| Part number | SFP-MX-AO |
| Product type | SFP (mini-GBIC) |
| Performance | |
| Transfer speed | 1 Gbit/s |
| Connectivity | |
| Optical wavelength | 62.5 µm |
| Supported protocols | Gigabit Ethernet |
| Ports & slots | |
| Port count | 1 x LC 1000Base-SX Network |
| Size & build | |
| Product dimensions | 1.2 in × 2.75 in × 4.75 in |
| Shipping weight | 0.05 kg |
| Package size | 114 × 51 × 20 mm |
| Compatibility | |
| Brand compatibility | Cisco® |
The transceiver follows the standard SFP form factor and measures 1.2 in. x 2.75 in. x 4.75 in., matching Cisco SFP-MX slots.
Align the keyed LC duplex connector with the port, push straight in until it clicks, and verify the link LED — forcing it at an angle bends the 62.5 µm fiber ferrule.
Inspect and clean both LC ferrules with a lint-free wipe and isopropyl alcohol whenever you unplug the patch cord or notice signal loss; the module itself has no moving parts to service.
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