Match Hirschmann SFP-FAST-BA SM/LC EEC Part Number 942205001 to a Type B Far-End Module and Review the 18 dB Budget for a 20 km Single-Mode Link
Hirschmann SFP-FAST-BA SM/LC EEC Part Number 942205001 is a Type A bi-directional Fast Ethernet transceiver for a single-mode route up to 20 km under the published conditions. It uses one LC fiber with 1310 nm transmit and 1550 nm receive wavelengths.
Single fiber requires opposite wavelength roles
Use Hirschmann SFP-FAST-BA SM/LC EEC Part Number 942205001 at one end and a compatible Type B module at the other. A second Type A module does not provide the opposite transmit and receive wavelengths needed for the pair.
Hirschmann networking equipment reference photograph. The accessory or power supply described on this page is not represented by an exact product photograph.
Document the endpoint role for Hirschmann SFP-FAST-BA SM/LC EEC Part Number 942205001 alongside the switch port and fiber identifier. Clear A/B records reduce mistakes when one transceiver is replaced during a fault response.
Build the 18 dB loss calculation
The 20 km reach of Hirschmann SFP-FAST-BA SM/LC EEC Part Number 942205001 is linked to the listed single-mode conditions. Add cable attenuation, patching, splices and margin, then compare the result with the 18 dB budget.
Use the optical power diagnostics of Hirschmann SFP-FAST-BA SM/LC EEC Part Number 942205001 to validate the installed route after connector cleaning. Keep the readings with the acceptance record so future loss increases can be investigated.
Distinguish 20 km from 60 km Type A
Specify Hirschmann SFP-FAST-BA SM/LC EEC Part Number 942205001 with part number 942205001. The SM+ Type A module uses the same wavelength direction but is a separate 60 km product with a larger budget.
Check host-switch support for Hirschmann SFP-FAST-BA SM/LC EEC Part Number 942205001, including SFP operation and diagnostic reporting. Environmental suitability also depends on the switch and enclosure, not only the module's extended-temperature range.
| Product reference | Hirschmann SFP-FAST-BA SM/LC EEC Part Number 942205001 |
|---|---|
| Speed | 100 Mbit/s |
| Connector / fiber | LC / single-mode 9/125 um |
| Published distance | 0-20 km |
| Type A wavelengths | TX 1310 nm / RX 1550 nm |
| Link budget | 0-18 dB |
| Power | 1 W via switch |
| Operating temperature | -40 to +85 C |
| Dimensions / mass | 13.4 x 8.5 x 56.5 mm / 40 g |
Manufacturer specification: Hirschmann SFP-FAST-BA SM/LC EEC Part Number 942205001
