Main Features

Manufacturer: Hirschmann (Belden) – RS20 compact OpenRail family
Model/MPN: RS20‑0800M2M2SDAEHH04.2.02 (internal code 943 434‑003)
Switch Type: Fully managed Layer 2 Fast Ethernet device, fanless, store‑and‑forward architecture
Port Configuration:
- 6 × 10/100 Mbps RJ45 copper ports
- 2 × 100 Mbps multimode fiber ports (SC)
- Additional USB and V.24 console port for local management
Power Supply: Wide-range input: 9.6–60 V DC or 18–30 V AC
Redundancy & Management:
- Supports Hirschmann HIPER Ring, MRP, RSTP, MSTP, link aggregation
- Security features: IEEE 802.1X, MAC/IP port security, SNMP v3, SSH v2
- Management via web GUI, CLI, SNMP, HiVision
Certifications & Ratings:
- Operating temp: 0–60 °C (some variants –25 to +70 °C)
- Approvals: CE, cUL 508, ISA 12.12.01 (Class 1 Div. 2), FCC
- IP20 protection with rugged metal housing
Form Factor: Compact DIN‑rail mount; 74 mm wide × 111 mm deep × ~131 mm high; fanless, low‑noise operation
Obsolescence & Replacement: Marked obsolete, upgraded by Belden BRS20 series; still found in surplus markets

Hirschmann – RS20-0800M2M2SDAEHH04.2.02 – Managed DIN-Rail Industrial Ethernet