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Compact UOTEK UT-2216 converter, dark metal case, DB9 female input, DB9 male and RJ45 outputs, three status LEDs

UOTEK

UOTEK UT-2216 RS-232 to RS-485 data converter DB9 female to DB9 male RJ45 600W surge protection

SKU CH-65NX-68B6W

Converts RS-232 signals to balanced RS-485 with 600W per-line surge protection and status LEDs

  • First connectorDB9 female
  • Second connectorDB9 male,rj45
  • Product typeConverter
  • Converts RS-232 to balanced RS-485 differential signals
  • 600W surge protection per RS-485 line with TVS diodes
  • Asynchronous half-duplex operation up to 1.2 km distance
  • DB9 female to DB9 male and RJ-45 connectors included
  • Status LEDs show power, transmit and receive activity

UOTEK UT-2216 industrial signal converter

The UOTEK UT-2216 converts single-ended RS-232C signals to balanced differential RS-485 EIA/TIA signals. It features a DB9 female input and provides both DB9 male and RJ-45 outputs for RS-485 connectivity. Each RS-485 line includes 600W lightning and surge protection using TVS suppression technology. Status LEDs indicate power, transmit and receive activity for easy monitoring.

Suits RS-232 to RS-485 conversion in harsh

This converter suits industrial automation, building management and remote sensor networks that need reliable long-distance serial links over twisted-pair or shielded cable. Half-duplex asynchronous operation fits standard Modbus RTU and similar protocols. Not suitable for applications requiring full-duplex communication or fibre-optic transmission media. Buyers needing optical isolation beyond the stated surge rating should look elsewhere.

Half-duplex async with 600W per-line surge

The working mode is asynchronous half-duplex, which determines compatibility with two-wire RS-485 bus topologies. Transmission distance scales with baud rate: 115.2K BPS reaches 300M, 38.4K BPS reaches 600M and 9,600 BPS reaches 1.2KM. Operating temperature spans -25 to 70°C with 5% to 95% relative humidity tolerance. Physical dimensions are 106×87×22mm for panel or DIN-rail mounting.

How it compares

Measured against everything we stock in Serial & Protocol Converters, at today’s prices. Recalculated every night.

Price $24.99
Pricier than about 57% of the 121 comparable items (median $19.99).

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Specifications

Product
Brand nameUOTEK
Model nameUT-2216
Product typeConverter
Ports & slots
First connectorDB9 female
Second connectorDB9 male,rj45

Questions about this item

What are the exact dimensions of the UT-2216 converter for panel-mount planning?

The unit measures 106 mm long, 87 mm wide and 22 mm deep, so allow that footprint plus cable clearance when mounting.

How do I wire the RS-485 side to the DB9 male and RJ-45 ports without crossing data lines?

Connect twisted-pair or shielded cable to the RS-485 DB9 male or RJ-45 output, matching A/B polarity; the converter works in asynchronous half-duplex mode, so ensure the host software disables echo.

Will the 600 W per-line surge protection degrade and need replacement after a lightning event?

The TVS suppressors clamp transients instantly and return to high impedance; they are not sacrificial, so no routine replacement is required unless a strike exceeds the 600 W rating.

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