Hirschmann BRS20-0600S2S2-STCY99HHSESXX.X.XX Single-Mode 100BASE-FX Link Planning and Purchasing for a Six-Port BOBCAT Switch
Hirschmann BRS20-0600S2S2-STCY99HHSESXX.X.XX is the BRS20-4TX/2FX-SM configuration of the Hirschmann BOBCAT family. For a network with single-mode fiber already installed between cabinets, this configuration offers two fixed single-mode SC interfaces alongside four local copper ports. It is a Fast Ethernet model, and its link design must be matched to the far-end equipment.
For spare-parts identification, record 942170005 alongside the complete configuration printed above. The short Type remains useful for the installed-equipment register.
Fixed single-mode uplinks for distributed Ethernet
Evaluate attenuation, connector losses, splices and optical reserve together. A nominal distance in a catalog is a design reference under specified conditions, not a guarantee for every installed fiber route.
Key hardware specifications
| Brand / range | Hirschmann / BOBCAT |
| Type | BRS20-4TX/2FX-SM |
| Product code | BRS20-0600S2S2-STCY99HHSESXX.X.XX |
| Part number | 942170005 |
| Ports | 4 x 10/100BASE-TX RJ45; 2 x 100BASE-FX single-mode SC |
| Operating Voltage | 2 x 12 VDC ... 24 VDC |
| Power Consumption | 7 W |
| Operating temperature | 0 to +60 °C |
| Dimensions (WxHxD) | 57 mm x 138 mm x 115 mm |
| Mount Type | DIN Rail |
| IP Protection Rating | IP30 |
Power checks for the selected hardware
Catalog supply: 2 x 12 VDC ... 24 VDC; listed power consumption: 7 W. Longer fiber routes do not power the remote cabinet. Each location needs its own suitable supply design and a documented isolation procedure. Include this switch in the local load calculation and check its terminal wiring independently of the single-mode optical link budget.
Reference photograph: shared Hirschmann stock image. The photographed unit may show a different model; this image does not establish the configuration or availability of Hirschmann BRS20-0600S2S2-STCY99HHSESXX.X.XX.
Replacement acceptance checks
- Record the single-mode route, SC terminations and far-end interface before replacement.
- Keep an approved copy of network settings and identify which local copper devices require checks.
- Verify the re-established links after installation and retain optical test information with the maintenance report.
Does the switch provide Gigabit optical uplinks?
The selected interfaces are 100BASE-FX. A requirement for Gigabit fiber needs a different verified interface and product configuration.
Quote the switch and installation scope
Enquiry reference: Hirschmann BRS20-0600S2S2-STCY99HHSESXX.X.XX; Type BRS20-4TX/2FX-SM; part 942170005.
Submit the single-mode link requirement, remote interface and quantity with the complete order reference. State any required supporting documents and target destination; HKXY can prepare a model-specific quotation while keeping optional cables and related accessories on separate lines.
Technical reference: Belden catalog configuration for BRS20-4TX/2FX-SM. Confirm the current datasheet and supplied hardware revision before final engineering approval.
