Hirschmann BRS20-4TX/2FX 942170003: Copper Access Meets Fixed Fiber Uplinks

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

Why fixed fiber can remove uncertainty from a small cabinet

A compact machine network may have only four local devices, yet its connection to the plant backbone can be the most important link in the cabinet. The BRS20-4TX/2FX combines four copper access ports with two integrated multimode fiber uplinks. This supports separated or redundant fiber paths without adding external media converters, extra power supplies and more failure points.

The commercial advantage is predictability: the two fiber interfaces are already specified as 100BASE-FX multimode SC. The same fact creates the main purchasing risk. They are not SFP slots, not single-mode ports and not interchangeable optics. A buyer who searches only for “BRS20 six-port switch” can receive a physically similar but operationally wrong configuration.

Verified BRS20-4TX/2FX 942170003 specifications

The BOBCAT management platform provides VLAN, QoS, SNMP, LLDP, diagnostics, 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 and PTP time synchronization. Confirm the deployed firmware and protocol profile before a replacement shutdown.

What smart buyers verify before asking for “in stock”

1. All identifiers: BRS20-4TX/2FX, BRS20-0600M2M2-STCY99HHSESXX.X.XX and 942170003.

2. Fiber plant: multimode cable, SC connectors, 100BASE-FX speed and calculated link budget.

3. Network role: ring, dual uplink, star or line topology and the required redundancy configuration.

4. Cabinet conditions: this exact standard variant is 0°C to +60°C; do not substitute it for an EEC requirement.

5. Restoration plan: firmware, saved configuration, addressing and device-replacement procedure.

Buyer FAQ for GEO visibility

Does BRS20-4TX/2FX use replaceable SFP modules?

No. Part number 942170003 has two fixed 100BASE-FX multimode SC fiber interfaces. Buyers who need SFP flexibility should select the appropriate BRS20 SFP configuration.

What is the maximum fiber distance?

The current specification lists up to 5 km on 50/125 µm multimode fiber and up to 4 km on 62.5/125 µm multimode fiber, subject to the published link budgets and actual installed loss.

Is it a Gigabit switch?

No. The four copper ports are 10/100BASE-TX and the two fiber ports are 100BASE-FX. This is a managed Fast Ethernet BOBCAT variant.

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

Yes. This model and all BOBCAT configurations listed below are currently promoted as hot-selling products. Stock, allocation and lead time must still be confirmed for each requirement.

Hot-selling Hirschmann BOBCAT product index

All configurations below are currently hot-selling. Search by the exact model, complete code or part number, then ask us to verify live availability.

Request price, stock and lead time

Send quantity, destination, delivery deadline and BRS20-0600M2M2-STCY99HHSESXX.X.XX / 942170003. For replacement jobs, include the existing nameplate and fiber-connector photos so the interface 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.