Hirschmann (Belden) RS20-1600M2M2SDAEHC09.1.00 DIN-rail managed industrial Fast Ethernet switch
Hirschmann (Belden) RS20-1600M2M2SDAEHC09.1.00 (Order Code / Part Number: 943434005) is a 16-port DIN-rail managed industrial Fast Ethernet switch from the OpenRail RS20 family.
Equipped with Enhanced (E) Layer 2 firmware (v09.1.00), dual multimode fiber optic SC uplinks, standard temperature rating, and conformal coating (HC), it provides exceptional physical defense against corrosive gases, dust, and moisture in harsh factory automation environments.
1. Product Introduction / Overview
Manufacturer: Hirschmann / Belden
Product Line: OpenRail RS20 Compact Series (Managed Layer 2)
Model Code: RS20-1600M2M2SDAEHC09.1.00
Part Number / Order Code: 943434005
Port Count: 16 Ports total (14 × 10/100BASE-TX RJ45 Copper + 2 × 100BASE-FX Multimode SC Fiber)
Software Version: HiOS / Classic Software Release 09.1.00 (Software Level E — Enhanced Layer 2)
Primary Function: Industrial edge networking for dense field devices (PLCs, I/O nodes, HMIs) with fiber backbone connectivity for high noise immunity.
2. Technical Parameter List
| Environmental Factor | Operating / Tolerance Level | Standard / Test Method |
| Operating Temperature | 0 °C to +60 °C (S Standard Temp rating) |
IEC 60068-2-1 / 2-2 |
| Storage Temperature | -40 °C to +70 °C | — |
| Relative Humidity | 10% to 95% (strictly non-condensing) | IEC 60068-2-30 |
| PCB Conformal Coating | Harsh Condition (HC) — PCB coated against chemical mist and moisture | IEC 60068-2-60 |
| Vibration Resistance | 1 mm @ 2–13.2 Hz; 0.7 g @ 13.2–100 Hz | IEC 60068-2-6 |
| Shock Resistance | 15 g (11 ms duration, 18 shocks) | IEC 60068-2-27 |
| ESD Immunity | 6 kV contact discharge; 8 kV air discharge | EN 61000-4-2 |
3. Environmental Tolerance Conditions
| Environmental Factor | Operating / Tolerance Level | Standard / Test Method |
| Operating Temperature | 0 °C to +60 °C (S Standard Temp rating) |
IEC 60068-2-1 / 2-2 |
| Storage Temperature | -40 °C to +70 °C | — |
| Relative Humidity | 10% to 95% (strictly non-condensing) | IEC 60068-2-30 |
| PCB Conformal Coating | Harsh Condition (HC) — PCB coated against chemical mist and moisture | IEC 60068-2-60 |
| Vibration Resistance | 1 mm @ 2–13.2 Hz; 0.7 g @ 13.2–100 Hz | IEC 60068-2-6 |
| Shock Resistance | 15 g (11 ms duration, 18 shocks) | IEC 60068-2-27 |
| ESD Immunity | 6 kV contact discharge; 8 kV air discharge | EN 61000-4-2 |
4. Operating Instructions
Installation & Wiring
DIN Rail Mounting: Hook the top recess of the switch module over the top edge of a 35 mm DIN rail, then snap the lower part backward until the spring lock engages.
Grounding: Connect a low-impedance protective earth (PE) grounding wire to the grounded screw terminal on the switch metal chassis before powering on.
Power Inputs: Connect a primary DC/AC power source to $+V1/-V1$ and an optional redundant power source to $+V2/-V2$ on the 6-pin terminal block.
[Top Hook] ──► ┌──────────┐
│Hirschmann│
│ RS20-16 │
[DIN Rail] ──► ╞══════════╡
│ Switch │
[Release Latch] ──► └────┬─────┘
▼ (Pull down to release)
Initial Configuration & Login
Default Setup: Out-of-the-box, the switch looks for a BOOTP or DHCP server to receive an IP address.
HiDiscovery Tool: Use Hirschmann’s HiDiscovery software tool over Ethernet to locate unconfigured switches on the local subnet and assign an IP address.
Console / Web Access: Access Web-based Management via HTTPS or CLI via SSH/Telnet or V.24 serial cable (9600 Baud, 8 Data bits, 1 Stop bit, No Parity).
5. Fault Diagnosis & Troubleshooting
| Symptom / LED Indicator | Potential Cause | Recommended Action |
| Power LEDs (P1/P2) OFF | No power feed connected, or reverse wire polarity. | Measure terminal input voltage ($9.6\text{–}60\text{ V DC}$). Correct supply wiring. |
| FAULT LED Solid Red | Loss of redundant power supply input, link loss on a monitored port, or boot diagnostic failure. | Check event log via Web interface/CLI. Verify all assigned active links and redundant power inputs. |
| Fiber Link LED OFF (Ports 15–16) | Tx/Rx fiber pair reversed, dirty fiber connector end-faces, or distance exceeds optical budget. | Swap Tx and Rx fiber lines ($Tx \rightarrow Rx$). Clean optical SC connectors. Check multimode fiber length limit ($< 5\text{ km}$). |
| Excessive Packet Drops | Duplex mismatch or high EMI noise on copper lines. | Set port speed/duplex to Auto or force identical settings on both ends. Use STP Cat5e/Cat6 shielded cabling. |
6. Related Models in the Same Series
The RS20 series provides configurable options based on port density, fiber count, and firmware features:
16-Port Variants:
RS20-1600T1T1SDAE: 16 × Fast Ethernet RJ45 Copper ports (No fiber)
RS20-1600M2T1SDAE: 15 × RJ45 Copper + 1 × Multimode SC Fiber port
RS20-1600S2S2SDAE: 14 × RJ45 Copper + 2 × Single-mode SC Fiber ports
24-Port Variants:
RS20-2400T1T1SDAE: 24 × Fast Ethernet RJ45 Copper ports
Next-Generation Successor Series:
Hirschmann BOBCAT (BRS20/BRS30): Modern TSA/TSN capable compact managed switches replacing legacy RS20 models.
7. Storage Conditions
To ensure the long-term reliability of uninstalled spare units, comply with these environmental limits:
Storage Temperature: -40 °C to +70 °C
Relative Humidity: 10% to 95% (strictly non-condensing)
Environment: Store in original ESD-protective packaging inside a clean, dry room away from direct exposure to corrosive industrial gases or liquid splashing.
8. Guidelines to Ensure Google Web Indexing
To maximize SEO visibility and speed up indexing for this technical datasheet:
Title Tag & Headings:
Title: HIRSCHMANN RS20-1600M2M2SDAEHC09.1.00 Industrial Switch Datasheet
H1 Header: Hirschmann RS20-1600M2M2SDAEHC09.1.00 Managed Rail Switch Specs
Structured Data Markup (JSON-LD):
JSON
{
“@context”: “https://schema.org/”,
“@type”: “Product”,
“name”: “Hirschmann RS20-1600M2M2SDAEHC09.1.00”,
“mpn”: “943434005”,
“description”: “Industrial OpenRail 16-port Managed Ethernet Switch with 14 Fast Ethernet RJ45 ports, 2 Multimode SC fiber ports, and conformal coating.”,
“brand”: {
“@type”: “Brand”,
“name”: “Hirschmann”
}
}
Indexing Request:
Include the URL in your sitemap.xml.
Submit the page directly through Google Search Console using the URL Inspection Tool to request crawling.