Hirschmann BRS40-00129999-STCY99HHSESXX.X.XX BRS40-12TX Selection Guide for Twelve-Port Gigabit Copper Networks, Cabinet Space and Maintenance Spares
Hirschmann BRS40-00129999-STCY99HHSESXX.X.XX identifies the Hirschmann BRS40-12TX, part number 942170077. Unlike mixed-speed BOBCAT arrangements, this model provides twelve 10/100/1000BASE-TX RJ45 ports. Its fanless DIN rail format suits a cabinet-level connection plan that calls for Gigabit-capable copper interfaces throughout. The listed configuration does not include SFP slots or specify powered Ethernet output.
Count links by function, not only by device quantity
Include the upstream connection, local equipment and any reserved maintenance or expansion links when assigning the twelve interfaces. A twelve-device list can require more than twelve switch connections once inter-switch cabling is considered. Record the intended link speeds and confirm that each connected endpoint and cable installation can support the required connection.
Twelve-port copper switch reference
| Brand / family | Hirschmann / BOBCAT |
| Type | BRS40-12TX |
| Product code | BRS40-00129999-STCY99HHSESXX.X.XX |
| Part number | 942170077 |
| Interfaces | 12 × 10/100/1000BASE-TX RJ45 |
| Operating temperature | 0 to +60 °C |
| Supply inputs | 2 x 12 VDC ... 24 VDC |
| Power consumption | 11 W |
| Housing / protection | PC-ABS / IP30 |
| Mounting | DIN Rail |
| Dimensions (W × H × D) | 73 mm × 138 mm × 115 mm |
| Weight | 700 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 BRS40-00129999-STCY99HHSESXX.X.XX.
Read the cabinet figures together
The catalog lists 11 W consumption, two 12–24 V DC inputs and a 73 × 138 × 115 mm PC-ABS body. These figures help with supply and layout planning, but installation also needs connector access and appropriate cable bending space. Review the 0 to +60 °C operating range at the device position rather than relying only on the room temperature.
Preserve management requirements during a spare purchase
A matching port arrangement is not a complete commissioning specification. Retain the existing device label, required firmware and approved network configuration with the purchase request. Confirm how the replacement will be addressed and configured before installation. If optical media or PoE is needed, review a suitable different configuration rather than adding those capabilities to this copper-only description.
Confirm the requested supply scope
Send HKXY BRS40-00129999-STCY99HHSESXX.X.XX, part 942170077, quantity and destination for a quotation. Include a label photograph when replacing an installed unit, together with configuration and documentation requirements. Confirm the exact supplied version, accessory scope and delivery schedule before ordering.
Technical reference: Belden catalog for Hirschmann BRS40-12TX.
