RS20 S2 T1 switch: configuration change guide
RS20-0800S2T1TDAUHH is the complete Hirschmann designation for an eight-port combination of singlemode SC and copper RJ45 uplinks. This newly written RS20 S2 T1 switch article gives engineers and buyers a model-specific reference for interface planning, change evidence, lifecycle review, and sourcing.
Keep every character of the code in drawings and purchase requests. A family name helps discovery, but it cannot confirm the exact ports, connectors, software, environmental options, or revision.
Copper And Optical Tests
Review access-port map, S2 optical route, T1 copper route, SC condition, optical loss, cable category, negotiated speed, power, software, and lifecycle. Keep RS20-0800S2T1TDAUHH unchanged in the RFQ. One suffix difference can affect the software, environmental class, approval set, or customer-specific construction.
- S2 loss budget
- T1 cable test
- Normal path
- Recovery path
Asymmetric Uplink Design
One singlemode path and one copper path serve different physical risks, so they need separate acceptance tests. The requested unit belongs to the Hirschmann RS20 singlemode-and-copper family and is a fanless managed Fast Ethernet DIN-rail switch with one singlemode SC optical position and one RJ45 uplink position. The S2 and T1 combination joins a 1300 nm singlemode 100BASE-FX SC link with a 10 or 100 Mbit/s copper RJ45 link.
Run copper diagnostics on T1 and optical diagnostics on S2. Then save both results in the same handover record. A mixed-media topology can hide which link carries the normal and recovery path. These records support both troubleshooting and a technically useful quotation.
RS20 S2 T1 switch S2-T1 Acceptance
Run acceptance in stages. First, verify power, mounting, and startup. Next, test each copper and optical path separately. Then restore management, VLAN, alarms, and redundancy functions. Finally, save the accepted configuration and link measurements with the site change record.
Quotation And Delivery Inputs
Send HKXY Instruments the quantity, destination, required date, old label, network drawing, and acceptable alternative policy. We can review availability, current price, lead time, export packing, and delivery options. Compare the result with the official Belden Hirschmann RS20 configurator.
Related Hirschmann RS20 Models
These nearby configurations can support spare and migration planning, but they are not direct substitutes. Check port count, connector style, fiber mode, optical reach, software level, temperature code, approvals, and the full suffix.
- RS20-0800M4M4SDAE
- RS20-0900VVS2SDAEHH
- RS20-0800S2S2SDAE
- RS20-0800M4M4SDHEHH
- RS20-0800T1T1SDAP
Lifecycle And Successor Review
Belden currently marks the RS20, RS30, and RS40 configurator as Limited Availability or Passive and points users toward BOBCAT replacement options. Therefore, exact-code stock and lead time need a fresh check. A successor also needs engineering review for interfaces, mounting, power, software, security, and configuration migration.


