Hirschmann BRS20-1000S2S2-STCY99HHSESXX.X.XX: Match BOBCAT BRS20-8TX/2FX-SM to Single-Mode Fiber Routes and Local Fast Ethernet Connections
Hirschmann BRS20-1000S2S2-STCY99HHSESXX.X.XX selects the Hirschmann BRS20-8TX/2FX-SM, a DIN rail managed switch listed as part 942170006. Eight 10/100BASE-TX RJ45 connections serve the copper side of the layout, and two fixed 100BASE-FX SM-SC interfaces provide single-mode fiber connections. The SM designation matters: a multimode SC model with the same number of ports is not the same optical configuration.
Single-mode variant: ordering and installation data
| Brand / series | Hirschmann / BOBCAT |
| Type | BRS20-8TX/2FX-SM |
| Product code | BRS20-1000S2S2-STCY99HHSESXX.X.XX |
| Part number | 942170006 |
| Ports | 8 × 10/100BASE-TX RJ45; 2 × 100BASE-FX single-mode SC |
| Operating temperature | 0 to +60 °C |
| Supply inputs | 2 × 12–24 V DC |
| Power consumption | 8 W |
| Mounting | DIN Rail |
| Dimensions (W × H × D) | 73 mm × 138 mm × 115 mm |
| Housing / protection | PC-ABS / IP30 |
| Weight | 500 g |
Specify the fiber, not just the connector
Document the 9/125 µm single-mode cable route and verify the optical characteristics of the far-end equipment. The catalog gives a 0–32.5 km reference with a 16 dB link budget at 1300 nm and stated loss/reserve assumptions. That figure is conditional; an actual route needs its connector, splice and cable attenuation assessed.
Reference photograph: shared Hirschmann product image. The photographed unit may be a different model; this image does not establish the configuration or availability of Hirschmann BRS20-1000S2S2-STCY99HHSESXX.X.XX.
Balance the copper and fiber connection plan
The ten interfaces comprise eight copper connections and two fixed optical ones. Decide which links connect the cabinet to other network nodes before assigning every port. All specified optical links are 100 Mbit/s, so avoid carrying a Gigabit uplink assumption from a different BOBCAT model into this configuration.
Environmental and service considerations
This version operates from 0 to +60 °C and is listed at 8 W. Its PC-ABS housing is IP30 and mounts on DIN rail. Check the space needed to remove connectors and maintain the fiber installation, as well as the bare housing dimensions. For an existing network, retain management settings and compare firmware requirements before replacement.
Request a configuration-specific HKXY quotation
To request BRS20-8TX/2FX-SM from HKXY, give full code BRS20-1000S2S2-STCY99HHSESXX.X.XX, part 942170006 and quantity. Include cable type, route length and the far-end model if known. Specify documentation and delivery requirements so the proposed supply can be checked against the intended installation.
Technical reference: Belden catalog for Hirschmann BRS20-8TX/2FX-SM.
