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Small rectangular converter box with DB9 female port and terminal block plus RJ45 connectors

UOTEK

UOTEK UT-217E RS232 to RS485 422 Data Converter

SKU CH-73XX-NCY8S

Port-powered RS-232 to RS-485/422 converter with 2.5 kV optical isolation, 600 W lightning protection per line, and support for 32 devices up to 1,200 m

  • TypeConverter
  • Connector ADB9 female
  • Connector Bterminal block & RJ-45
  • Port-powered design eliminates need for external power supply
  • 5 kV optical isolation protects connected equipment from voltage spikes
  • 600 W lightning protection per line safeguards RS-485/422 ports
  • Automatic data direction control removes requirement for RTS flow control signals
  • Supports up to 32 devices on a single RS-485 or RS-422 bus

Industrial Serial Converter

The UOTEK UT-217E translates a single RS-232 DB9 female port into balanced RS-422 or RS-485 signals using a terminal block and RJ-45 connector. It draws power directly from the serial port, so no external supply is required. Optical isolation rated at 2.5KVrms protects connected equipment from ground loops and surges. Automatic data direction control removes the need for RTS handshaking in half-duplex RS-485 networks.

Replaces Basic Non-Isolated Adapters

Upgrade when the installation demands 2.5KVrms isolation, 600W per-line lightning protection, or the ability to daisy-chain up to 32 devices on one bus. The jump is worth it for runs up to 1,200m at 9,600bps where noise immunity and fault tolerance matter. It also eliminates the separate power brick that simpler converters often require.

Handles Multi-Drop Networks

Comfortably serves 32 RS-485 or RS-422 nodes over twisted-pair or shielded cable at baud rates from 300 to 115.2 kbps. Headroom shrinks at maximum distance and speed simultaneously; the 1,200m figure applies at 9,600bps. Not suited for applications needing full-duplex RS-485 or fibre-optic media.

Highlights

  • Port-powered design eliminates need for external power supply
  • 5 kV optical isolation protects connected equipment from voltage spikes
  • 600 W lightning protection per line safeguards RS-485/422 ports
  • Automatic data direction control removes requirement for RTS flow control signals
  • Supports up to 32 devices on a single RS-485 or RS-422 bus

Specifications

BrandUOTEK
ModelUT-217E
TypeConverter
Connector ADB9 female
Connector Bterminal block & RJ-45

Questions about this item

What connectors are on the RS-485/422 side of the UT-217E?

The RS-485/422 side has a 4-bit terminal block and an RJ-45 connector for twisted-pair or shielded cable.

Does the UT-217E need an external power supply, and which pins carry the data?

It is port-powered from the RS-232 DB9 female connector; automatic data direction control means no RTS wiring is required.

What protection does the RS-485/422 interface provide and when might it need replacement?

Each line has 600 W lightning protection and 2.5 KV isolation; replace the unit if a surge event damages the isolation or indicators show failure.

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