Hirschmann BRS20-1000S2S2-TTCY99HHSESXX.X.XX BRS20-8TX/2FX-SM-EEC: Review Single-Mode Fiber Links, Cabinet Temperature and DIN Rail Installation
Hirschmann BRS20-1000S2S2-TTCY99HHSESXX.X.XX is the Hirschmann BRS20-8TX/2FX-SM-EEC, part 942170016, for a ten-port layout combining local copper connections with fixed single-mode fiber interfaces. The EEC configuration is rated for -40 to +70 °C operation. Its two SM-SC ports use 100BASE-FX, while the eight RJ45 ports provide 10/100BASE-TX connections; the optical links are not Gigabit ports.
Treat extended temperature and optical reach separately
The temperature rating applies to the specified device configuration. Optical suitability depends on the single-mode route, the far-end interface and the available link budget. Review both sets of conditions before choosing the switch: a valid temperature range cannot resolve an optical mismatch, and a suitable cable does not establish that cabinet conditions are acceptable.
Hardware and environmental reference
| Brand / series | Hirschmann / BOBCAT |
| Type | BRS20-8TX/2FX-SM-EEC |
| Product code | BRS20-1000S2S2-TTCY99HHSESXX.X.XX |
| Part number | 942170016 |
| Ports | 8 × 10/100BASE-TX RJ45; 2 × 100BASE-FX single-mode SC |
| Operating temperature | -40 to +70 °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 | 570 g |
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-TTCY99HHSESXX.X.XX.
What the single-mode reference means
The manufacturer lists 9/125 µm fiber with a 0–32.5 km reference, 16 dB budget at 1300 nm and defined attenuation/reserve assumptions. Use the route records to account for connectors and splices. Verify the actual link with the relevant equipment documentation instead of presenting the published distance as a promise for every cable installation.
Allow for cabinet operation and maintenance
The fanless unit has a PC-ABS IP30 enclosure, 8 W listed consumption and a DIN rail mounting format. Select a surrounding enclosure appropriate to the location and leave access to the fixed fiber connections and removable terminals. Retain port labels and management settings when preparing a like-for-like maintenance replacement.
Confirm the supply scope with HKXY
For BRS20-8TX/2FX-SM-EEC, send HKXY BRS20-1000S2S2-TTCY99HHSESXX.X.XX, part 942170016, quantity and delivery destination. State the operating-temperature requirement and describe the single-mode route. Ask the quotation to confirm the exact configuration, documentation, accessory scope and lead time.
Technical reference: Belden catalog for Hirschmann BRS20-8TX/2FX-SM-EEC.
