Build a documented twenty-port machine network around Hirschmann BRS20-20009999-STCY99HHSESXX.X.XX
The BRS20-20TX brings twenty managed 10/100BASE-TX RJ45 connections to a DIN rail installation. Hirschmann BRS20-20009999-STCY99HHSESXX.X.XX is the complete Product code for this PC-ABS housing version, specified for 0 to +60 °C operation. It is a copper-port configuration, so the port schedule should include both connected equipment and any copper connections used to reach the rest of the network. Its 15 W power consumption and published mechanical dimensions support panel planning before the equipment is ordered.
Allocate the twenty connections before reserving spare capacity
Create a device schedule that includes controllers, operator interfaces and other compatible Ethernet endpoints, then add the network interconnections required by the design. A connection used as an uplink occupies one of the available RJ45 ports; twenty ports do not automatically mean twenty endpoints plus additional dedicated uplinks. Mark spare connections explicitly and record their intended configuration. This makes later expansion easier to assess and prevents an unused physical port from being mistaken for an already approved network connection.
Separate traffic by purpose
VLANs can help organize communication groups when they are coordinated with the surrounding network. QoS and port prioritization provide further configuration options for traffic that needs differentiated handling. Identify the actual communication requirements before assigning these settings. Multicast control should also reflect the behavior of the attached systems. For Hirschmann BRS20-20009999-STCY99HHSESXX.X.XX, the objective is a deliberate port and traffic plan that can be reviewed during commissioning, rather than a collection of settings copied from an unrelated machine.
Hirschmann product reference image. The pictured model may differ from the specified configuration.
Technical specifications
| Brand | Hirschmann |
|---|---|
| Catalog Type | BRS20-20TX |
| Product code | BRS20-20009999-STCY99HHSESXX.X.XX |
| Part Number | 942170081 |
| Port Type and Quantity | 20 Ports in total: 20x 10/100BASE TX / RJ45 |
| Operating Voltage | 2 x 12 VDC ... 24 VDC |
| Power Consumption | 15 W |
| Operating temperature | 0 to +60 °C |
| Housing | PC-ABS |
| Dimensions (WxHxD) | 109 mm x 138 mm x 115 mm |
| Weight | 1060 g |
| Mount Type | DIN Rail |
| IP Protection Rating | IP30 |
Fit the switch into the panel drawing
The published enclosure measures 109 × 138 × 115 mm and weighs 1,060 g. Include connector access and cable routing in the layout in addition to the device dimensions. The PC-ABS housing is rated IP30, and the installed environment must provide appropriate protection. Check the temperature at the switch location rather than using the room temperature alone. Record the power requirement on the panel schedule so that the DC supply is assessed together with the other connected loads.
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.
What to include in an inquiry
Send Hirschmann BRS20-20009999-STCY99HHSESXX.X.XX, part number 942170081 and the required quantity. Add the destination or project reference and identify any service accessories that should be quoted. For a replacement, include the installed label and required network functions. A complete inquiry gives the supplier a defined configuration to check and helps the purchasing team compare the offered scope without reducing the requirement to a generic twenty-port switch.
A useful baseline for future service
After configuration, record port assignments, normal link status and the selected redundancy method. Save the approved configuration and retain the software information with the equipment record. When a network fault is reported, the service team can compare the affected port with this baseline and use the documented monitoring functions to narrow the investigation. Include the full code Hirschmann BRS20-20009999-STCY99HHSESXX.X.XX, part number 942170081 and the machine location on the maintenance record so that a future replacement request identifies the correct version.
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.
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