The RS485 Hub 8 Port has 8 channels of completely electrically isolated RS485 channels.
✔️Safe & Stable
8 fully isolated RS485 channels with 6kV lightning & 3kV optical isolation
✔️ High Capacity
Up to 128 nodes per port, 2200m transmission at 9600bps
✔️ Smart Protection
Built-in short-circuit & error detection, FPGA digital filtering
✔️Industrial Grade
-40℃~+85℃, fanless rugged design for harsh environments
| Model | FC-D8JM |
| Function | Industrial rail-mounted 8-channel RS485 hub (with short-circuit detection and isolation function) |
| Ports | 8 × RS485 channels 1 × RS232/422/485 (optional) |
| Power Supply | Redundant dual DC input: 9–70V Power consumption: < 5W Overload protection: Supported Reverse polarity protection: Supported Redundant protection: Supported |
| Terminal | 4-pin pluggable terminal, 5.08 mm pitch |
| Housing | Aluminum alloy, IP40 protection grade |
| Dimensions | 110 mm × 86 mm × 40 mm |
| Installation | DIN-rail mounting, wall mounting |
| Weight | 0.45 kg / unit |
Standard
EIA/TIA-232 RS-232 (ITU-T V.28)
EIA/TIA-422 RS-422 (ITU-T V.11)
EIA/TIA-485 RS-485 (ISO/IEC8284)
Serial interface:
RS-422: TxD+ TxD- RxD+ RxD- GND
RS-485 4 wires: TxD+ TxD- RxD+ RxD- GND RS-485 2 wires: A(corresponding TX+) B(corresponding TX-) GND
RS-232: RXD TXD GND
Operating temperature: -40 ℃ – +85 ℃
Storage temperature: -40 ℃ – +85 ℃
Humidity: 0% -95% (non-condensing)
MTBF:> 100,000 hours
● Glitch-Free FPGA Design
Digital filtering and common-mode choke suppress line spikes; auto RS485 TX/RX enable.
● High Reliability & Isolation
Each channel: 6kV surge protection, 3kV opto-isolation, independent shielded ground, LED status, isolated 3kV DC-DC power.
●Full Electrical Isolation
Power and all 9 RS485 channels isolated (3kV); safe with AC220V/AC380V input.
●Automatic Fault Detection
Detects line shorts and data errors; isolates faulty channels with LED alert.
●Flexible Communication
Upstream RS232/RS485/RS422 selectable; each RS485 supports 128 nodes, up to 2.2km.
●Triple-Level Surge Protection
Compliant with IEC61000-4-5; withstands 6kV peak, 10/700μs short-circuit.
● Wide Power Input & Protection
9–70V AC/DC, redundant power, overload & reverse-polarity protection.
●Industrial-Grade Robustness
Level 4 EMI, lightning, surge, and high-voltage protection; fanless cooling.
●Rugged & Flexible
Anodized aluminum IP40 housing; DIN-rail or wall-mount; -40°C to +85°C operation.
● Tested Reliability
100% burn-in tested for stable performance.
Customer Review
Process of Manufacturing
Q1: Do you support OEM orders?
Yes, we offer private labeling, custom housing, and protocol customization.
Q2: What’s the lead time?
Sample: 3-5 days. Bulk orders: 7-15 days depending on quantity.
Q3: Can I get a sample?
Yes, we accept sample order
Q4: What’s the warranty policy?
3 years standard warranty. Lifetime technical support.
If you are interested in any product, please contact us. We will introduce our products to you in more detail
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