Industrial RS485 Hub


  • Extending the reach of RS-485 Networks

About the PMC-1220E Industrial RS485 Hub

The PMC-1220E is an Industrial RS485 hub with one upstream port and four downstream ports. Not only can the PMC-1220E be used to increase the number of RS458 nodes beyond the 32 limit, it can also be used to simplify the wiring for a RS-485 network by splitting a long segment into four individual shorter segments, thus reducing labor and material costs while expanding the coverage area. Each RS485 port is optically isolated to protect the connected devices from electrical surges as a result of lightning or other electrical faults.


  • One upstream RS485 port and four downstream RS485 ports
  • 15kV ESD protection
  • 3kV isolation protection for all RS485 signals
  • Dip-switch selectable baud rates from 1,200 to 38,400 bps
  • < 1 μs transmission delay between upstream and downstream ports
  • Built-in termination resistor for each port
  • Short-circuit protection on the RS485 bus
  • Metal enclosure
  • DIN-Rail and Wall Mount
  • Extended operating temperature

Outstanding Warranty

Three Year Warranty. A warranty reflects the quality of a product. CET provides Industrial grade products that are Tropicalized for use within humid environments. Unlike other many vendors whose products have limited warranties, products that are not built to last, CET products are rugged and have the warranty to match.



industrial rs485 hub PMC-1220E

Budgetary Price: AUD $467.00

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