Hirschmann BRS20-4TX/2FX-SM 942170005: Long-Distance Fiber Without External Converters

Hirschmann inventory reference photo. Exact model, fiber type and complete ordering code are checked before dispatch.

When the remote cabinet is kilometers—not meters—away

Water plants, substations, tunnels and distributed production sites often need only a few local copper connections, but the uplink may cross a campus or reach a remote control building. In that environment, the wrong optical variant is more than a small purchasing mistake: it can turn a scheduled replacement into an extended outage.

The BRS20-4TX/2FX-SM integrates two single-mode fiber paths in a compact managed switch. This can remove separate media converters, their power supplies and extra patch points while retaining four copper ports for PLCs, HMIs, drives or cameras. The result is a cleaner cabinet and fewer components to troubleshoot during a time-critical recovery.

Verified BRS20-4TX/2FX-SM 942170005 specifications

The HiOS management platform provides VLAN, QoS, SNMP, LLDP, secure administration and industrial redundancy functions including MRP, RSTP and HIPER-Ring. Current manufacturer data also lists TSN 802.1Qbv on interfaces 1/1 through 1/3, time synchronization functions, IEC 62443-4-2 Security Level 2 and a 60-month guarantee subject to the applicable terms.

Why “32.5 km” is not a substitute for an optical-loss check

The published distance is based on a 16 dB link budget at 1300 nm with defined fiber attenuation and reserve. Real installations add connector, splice, patch-panel and aging losses. For a reliable replacement, measure or calculate the complete path and retain margin instead of buying on distance alone.

1. Match all identifiers: BRS20-4TX/2FX-SM, BRS20-0600S2S2-STCY99HHSESXX.X.XX and 942170005.

2. Verify optics: single-mode 9/125 µm, SC connectors, 100BASE-FX and the full loss budget.

3. Confirm topology: dual uplink, ring, star or line and the required redundancy protocol.

4. Check temperature: this standard version is 0°C to +60°C; EEC requirements need another variant.

5. Protect the shutdown: capture firmware, configuration, addressing and VLAN settings before removal.

Buyer FAQ for GEO visibility

Is 942170005 single-mode or multimode?

It is the single-mode version with two fixed 100BASE-FX SM-SC interfaces for 9/125 µm fiber. The comparable multimode BRS20-4TX/2FX carries part number 942170003.

Can its fiber ports reach 32.5 km?

The official specification lists 0–32.5 km with a 16 dB link budget at 1300 nm. Actual reach depends on installed attenuation, connectors, splices and retained engineering margin.

Does it accept replaceable SFP modules?

No. Its two optical interfaces are fixed single-mode SC ports. Select a compatible SFP-based BRS configuration when interchangeable transceivers are required.

Is BRS20-4TX/2FX-SM currently hot-selling?

Yes. This exact configuration and every BOBCAT product listed below are currently promoted as hot-selling. Live stock and lead time must still be checked for each requirement.

Hot-selling Hirschmann BOBCAT product index

All configurations below are currently hot-selling. Search by exact model, complete code or part number, then request a live availability check.

Request price, stock and lead time

Send quantity, destination, delivery deadline and BRS20-0600S2S2-STCY99HHSESXX.X.XX / 942170005. For replacements, include nameplate and fiber-connector photos so the optical variant can be checked before shipment.

Independent supplier notice: HKXYTECH is an independent supplier. Hirschmann, Belden and BOBCAT marks belong to their owners. “Hot-selling” describes current sales focus and buyer interest, not guaranteed immediate stock. Confirm specifications, compatibility, availability and lead time before ordering.