Specify the ten-port single-mode fiber arrangement with Hirschmann BRS20-1000S2S2-STCY99HHSESXX.X.XX

Hirschmann BRS20-1000S2S2-STCY99HHSESXX.X.XX is the Hirschmann BRS20-8TX/2FX-SM BOBCAT managed DIN rail configuration with 8 10/100BASE-TX RJ45 ports and two fixed 100BASE-FX single-mode SC fiber interfaces. The catalog specifies an operating temperature range of 0 to +60 °C. Identify the unit by its complete Product code and part number 942170006 when planning an installation or requesting a repeat order. The interface arrangement, environmental values and documented software functions below define the selection more precisely than a family name alone.

Allow space for the connected device

The manufacturer lists 73 mm x 138 mm x 115 mm enclosure dimensions, 500 g device weight and 8 W power consumption. The supply specification is 2 × 12–24 V DC. Use those values in the panel drawing and DC power budget. Enclosure dimensions do not include all the room needed for cable routing, connector handling and service access. The housing is PC-ABS with IP30 protection and DIN rail mounting. Review the mounting position and surrounding protection against the actual installation conditions. Label the supply connections and check the terminal arrangement in the manufacturer instructions before wiring. Keep the device accessible enough for the maintenance procedure chosen by the site.

Check capacity as well as the connector count

Prepare a traffic plan that identifies local exchanges and communication through shared network connections. A sufficient number of physical interfaces does not establish that every path has sufficient capacity for the intended traffic. Check the actual port speed specifications and include the connections reserved for the surrounding network in the port count. Record destinations and expected roles before configuring the switch. During acceptance, verify the required application exchanges with the connected equipment, then retain the observed link state as part of the baseline. Update the schedule when a spare port becomes an active connection.

Single-mode selection belongs in the equipment identity

This variant uses two fixed 100BASE-FX single-mode SC interfaces alongside eight copper RJ45 ports. Preserve the single-mode requirement in the bill of materials and the installation drawing. The connector format alone does not distinguish every optical variant. Confirm compatibility with the far-end interface, the installed fiber and the link budget using the relevant optical specifications before finalizing the design. Record each fiber destination separately, including patching and intended port roles. Do not infer a transmission distance from the SM label alone; the supported path depends on the actual optical characteristics and installation. During service, keep the full switch reference available with the cable schedule so a replacement request identifies the correct fixed-optics version. After installation, verify the links and application traffic with the actual equipment, then retain the accepted configuration as part of the network baseline.

Hirschmann product reference image. The pictured model may differ from the specified configuration.

Technical specifications

Documented controls and diagnostic access

The switch supports HTTPS and SSHv2 management, SNMP v1/v2/v3 and LLDP. Diagnostics include link monitoring, copper cable testing, Syslog and port mirroring. These can support a service process in which an affected port is checked against its normal state before broader configuration changes are attempted. HIPER-Ring, MRP and RSTP appear in the redundancy functions. Choose the required method as part of the complete topology and verify its operation with the participating network devices. Keep the result and the approved settings in the commissioning record.

Define the quotation scope

Send Hirschmann BRS20-1000S2S2-STCY99HHSESXX.X.XX, part number 942170006, and the required quantity with the inquiry. Include the project reference and list any accessories or documentation that should accompany the switch. For replacement work, provide the installed label and the required network functions. Ask for the offered configuration to be identified explicitly so the purchasing team can compare the scope with the requirement. Keep the accepted product reference in the equipment register. This supports repeat ordering without reducing the selection to a generic port count or a shortened BOBCAT family description.

Configuration files belong with the machine documentation

The documented configuration tools include USB-C management support, XML-based configuration files and automatic configuration undo. Remote configuration backup when saving is also listed. Select the backup method used by the site and test the procedure during commissioning. Store the accepted file with the machine reference and the full switch code, and record later authorized changes. A file without a clear device association can be as difficult to use as a missing backup. Identify service accessories separately if the maintenance procedure depends on a particular cable or adapter. Keep a dated record of accepted configuration changes.

Manufacturer reference:

Hirschmann BRS20-8TX/2FX-SM — official configuration details