SPIDER-1TX/1FX-SM: Hirschmann Industrial Ethernet Rail Switch
SPIDER-1TX/1FX-SM is an entry-level unmanaged industrial Ethernet media conversion switch launched by Hirschmann Automation, a subsidiary of Belden. It is specially designed for harsh environments such as industrial automation and marine control, enabling seamless conversion between twisted pair (TP) and single-mode fiber (SM), supporting long-distance data transmission and strong anti-interference capability.
- Core Identification & Basic Information
| Parameter | Specification |
| Manufacturer | Hirschmann (Hirschmann Automation and Control GmbH, a Belden brand) |
| Model | SPIDER-1TX/1FX-SM (Standard Order No.: 943928001) |
| Product Type | Unmanaged industrial Ethernet switch / media converter |
| Mounting | Standard 35 mm DIN rail mounting (snap-in type) |
| Ingress Protection | IP30 (for installation in control cabinets) |
| Pollution Degree | Complies with IEC 60664-1 Pollution Degree 2 |
| Laser Class | Complies with IEC 60825-1 Class 1 laser product (safe, no radiation risk) |
- Core Technical Specifications
- Port Configuration
| Port Type | Quantity | Specification | Connection Notes |
| 10/100BASE-TX Twisted Pair Port | 1 | RJ45, auto crossover, auto-negotiation, auto polarity detection | Max transmission distance 100 m, suitable for 0.5~2.5 mm wires |
| 100BASE-FX Single-Mode Fiber Port | 1 | Duplex SC connector, 9/125 渭m single-mode fiber | Max transmission distance 32.5 km (1300 nm wavelength, 16 dB link budget) |
- Switching & Forwarding
Switching Mode: Store and Forward
Supported Standards: IEEE 802.3 (10 Mbps), IEEE 802.3u (100 Mbps)
MAC Address Table Capacity: Max 1000 MAC addresses
Frame Filtering: Automatically discards CRC error frames and fragment frames (< 64 bytes)
- Power & Power Consumption
| Parameter | Specification | Remarks |
| Operating Voltage Range | 9.6~32 VDC (wide voltage compatible) | Supports 12 VDC / 24 VDC industrial power supplies, built-in SELV safety isolation |
| Max Power Consumption | ≤ 3.0 W (at 24 VDC) | Approx. 10.2 Btu/h, low-power design |
| Current Consumption | Max 130 mA at 24 VDC | Typical approx. 80 mA |
| Power Terminal | 3-pin pluggable terminal block, no signal pins | Terminal tightening torque: 0.5 Nm |
| Grounding Method | Grounded via the grounding pin of the power terminal block | Ensure reliable grounding for improved anti-interference |
- Environmental Adaptability
| Parameter | Specification | Remarks |
| Operating Temperature | -40°C ~ +70°C (wide-temperature design) | Suitable for extreme environments such as polar regions, ships, metallurgy |
| Storage Temperature | -40°C ~ +85°C | Safe storage under extreme conditions |
| Relative Humidity | 10% ~ 95% (non-condensing) | Adaptable to high-humidity marine/industrial environments |
| Vibration Resistance | IEC 60068-2-6: 3.5 mm amplitude, 1~150 Hz, 1 g acceleration | Complies with industrial equipment vibration standards |
| Shock Resistance | IEC 60068-2-27: 15 g acceleration, 11 ms duration | Resists transportation and on-site vibration |
- Electromagnetic Compatibility (EMC)
Immunity: EN 61000-4-2 (ESD), EN 61000-4-3 (radiated field), EN 61000-4-4 (fast transients), EN 61000-4-5 (surge)
Emission: EN 55032 Class A, FCC 47 CFR Part 15 Class A
Industrial Standard: EN 61000-6-2 (immunity for industrial environments)
- Reliability & Certifications
Mean Time Between Failures (MTBF): 101.5 years (MIL-HDBK 217F, 25°C)
Safety Certifications: cUL 508, CSA 22.2 No.142
Industrial Standard: Complies with IEC 61131-2 (standard for programmable controllers)
- Pin & Wiring Configuration
- Power Terminal Block (3-pin)
| Pin No. | Function | Wiring Description |
| 1 | GND (Ground) | Equipment grounding terminal, must be reliably connected to industrial ground |
| 2 | V- (Negative Power) | Connect to DC power negative (0 V) |
| 3 | V+ (Positive Power) | Connect to DC power positive (9.6~32 VDC) |
- RJ45 Port Pinout (10/100BASE-TX)
| Pin | Signal | Function |
| 1 | TX+ (Transmit+) | Data transmit positive |
| 2 | TX- (Transmit-) | Data transmit negative |
| 3 | RX+ (Receive+) | Data receive positive |
| 4 | Not used | Reserved |
| 5 | Not used | Reserved |
| 6 | RX- (Receive-) | Data receive negative |
| 7 | Not used | Reserved |
| 8 | Not used | Reserved |
- Fiber Port (SC Connector)
Uses duplex SC interface; requires connection of single-mode fiber transceiver pair (TX/RX cross-connected)
Fiber type: 9/125 μm single-mode fiber, wavelength 1300 nm
- LED Status Indicators
| LED Name | Color | Status | Meaning |
| P (Power) | Green | Solid ON | Power supply normal |
| DA/STAT | Green | Solid ON | Valid link established on port |
| DA/STAT | Green | Blinking | Data traffic active on port |
| DA/STAT | Off | No link | Port not linked or faulty |
| 10/100 (Speed) | Yellow | Solid ON | 100 Mbps connection |
| 10/100 (Speed) | Off | 10 Mbps connection |
- Physical Characteristics
| Parameter | Specification |
| Dimensions (W×H×D) | 25 mm × 114 mm × 79 mm (1.0″ × 4.5″ × 3.2″) |
| Weight | Approx. 105 g (0.23 lb) |
| Housing Material | Flame-retardant ABS plastic, compliant with industrial safety standards |
| Wire Size | Twisted pair: 0.5~2.5 mm²; power terminals: 0.5~1.5 mm² |
- Features & Advantages
- Plug-and-play: No configuration required, operates immediately after power-on, ideal for fast deployment
- Long-distance transmission: Single-mode fiber supports up to 32.5 km, exceeding the 100 m limit of twisted pair
- Strong anti-interference: Industrial-grade EMC design, suitable for strong electromagnetic interference environments (e.g., near motors, inverters)
- Wide-temperature operation: Cold start at -40°C, stable operation at 70°C, suitable for outdoor/polar applications
- Link protection: Supports Far-End Fault and Low Light Detection to improve network reliability
- Auto-adaptation: RJ45 port auto-negotiates speed, duplex mode, and auto-crossover cable, simplifying wiring
- Typical Applications
- Industrial automation: Production line control, PLC networking, sensor data acquisition
- Shipbuilding & marine engineering: Ship automation systems, offshore platform control, remote equipment monitoring
- Intelligent transportation: Traffic signal control, tunnel monitoring, railway signaling systems
- Energy & power: Substation monitoring, wind/PV systems, power transmission and distribution control
- Chemical & metallurgical: Remote control in hazardous areas, networking in high-temperature/humidity conditions
- Remote monitoring: Cross-regional equipment networking, fiber optic relaying to extend coverage
- Installation & Maintenance Guidelines
- Installation Rules
Ensure firm rail mounting to avoid loosening
Maintain at least 10 cm ventilation space around the device to prevent heat buildup
For wiring: connect ground first, then power cables, and finally signal cables
Do not open the housing while the device is powered
- Maintenance Recommendations
Regularly check LED status for quick network fault diagnosis
Inspect cleanliness of power terminals and fiber interfaces every 6 months
Keep fiber ports free of dust; clean with professional fiber cleaning tools
For faults, first check power and physical link connections; disassembly by non-professionals is prohibited
- Alternative Models & Compatibility
| Alternative Model | Brand | Compatibility Notes |
| SPIDER-1TX/1FX-SM-EEC | Hirschmann | Enhanced version, supports wider voltage and higher temperature |
| RH1-TP/FO-SM | Hirschmann | Same-spec media converter, slightly different appearance |
| IEF-1100-SM | Phoenix Contact | Functionally compatible; note differences in pinout and dimensions |
- Important Notes
- Power Safety: Only SELV (Safety Extra-Low Voltage) power supplies must be used; AC mains input is strictly prohibited
- Fiber Connection: Single-mode and multi-mode fiber must not be mixed; SC connectors must match fiber type
- Environmental Restriction: Do not use in explosive hazardous areas (Class I, Division 2) unless specially certified
- Cable Selection: Industrial shielded twisted pair (STP) is recommended for improved anti-interference
- Grounding Requirement: Reliable grounding is mandatory; otherwise, equipment damage or unstable communication may occur
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