Hirschmann Choosing M-FAST SFP-MM/LC for a Hirschmann 100BASE-FX multimode switch port
M-FAST SFP-MM/LC is a Hirschmann Fast Ethernet SFP transceiver for multimode fiber and an LC connection. Belden's published data identifies the standard module as order number 943865001. The shared main image is a product-family collage, not a unique photograph of M-FAST SFP-MM/LC.
Key technical data
| Technical item | Verified value / selection note |
|---|---|
| Complete type | M-FAST SFP-MM/LC |
| Order number | 943865001 |
| Media and connector | Multimode fiber; LC connector |
| Data interface | 1 × 100 Mbit/s Fast Ethernet optical port |
| Optical wavelength | 1310 nm in the manufacturer link-budget data |
| Published reach | Up to 5 km on 50/125 µm MM; up to 4 km on 62.5/125 µm MM under stated fiber and link-budget conditions |
| Power | Supplied by the host switch |
| Standard temperature | 0 to +60 °C; EEC is a distinct version |
The critical decision for M-FAST SFP-MM/LC is whether the complete host, media and environmental conditions match the published module data. Keep the order number alongside the exact printed type.
Start with the host port
A switch must support the M-FAST SFP-MM/LC transceiver type and its 100 Mbit/s operating mode. Confirm the exact host model, firmware and approved transceiver list. A mechanically similar Gigabit SFP is not proof of electrical or software compatibility with the intended port.
Check the optical path
For M-FAST SFP-MM/LC, record the multimode fiber core size, route length, connector condition and link budget. The published distance figures depend on fiber attenuation and reserve assumptions; they are not a guarantee for an unknown installed cable. Clean and inspect LC ends before testing the link.
Keep the exact M-FAST SFP-MM/LC wording, the official product record and the installed equipment evidence together in the order file.
Standard versus extended-temperature versions
The EEC suffix marks a separate M-FAST SFP-MM/LC family version with a wider temperature envelope. Do not copy the EEC temperature claim onto the standard module. When a site uses an outdoor or unconditioned enclosure, compare the complete printed reference and applicable environmental data.
Acceptance and spare stock
At receipt, check the M-FAST SFP-MM/LC label, part number, latch and LC receptacle. Commission with an optical power or link-status check at the host switch and confirm error counters under traffic. Store spare modules in protective packaging and keep the exact version in the asset record.
Similar-looking model and order references
The following M-FAST strings are close catalog or formatting references. Fiber mode, wavelength, reach, RJ45 versus LC interface and temperature class can change. They are search references, not default substitutes for M-FAST SFP-MM/LC.
Final enquiry check
For M-FAST SFP-MM/LC, match the full printed type, order number and installed interface. Ask for written confirmation if the offered unit differs in code, revision or included accessories. Retain the site approval and receiving result with the M-FAST SFP-MM/LC asset record.
A useful quotation for M-FAST SFP-MM/LC includes condition, availability, documentation and return terms as well as the technical reference. Test the delivered item in the actual application under the site's authorized maintenance procedure.
