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Compact metal box with DB9 female port and green terminal block, DIN rail clip attached

UOTEK

UOTEK UT-2505B RS-232 to CAN BUS data converter

SKU CH-BKJY-FZMK5

Industrial RS-232 to CAN bus converter with isolated interface, 5 kbps-1 Mbps CAN rate, 600 bps-230 kbps RS-232 rate, three conversion modes, and -40 to 85 °C operation

  • First connectorDB9 Female
  • Second connectorTerminal bloack
  • Product typeCANBUS
  • Bidirectional RS-232 and CAN bus data exchange with CAN 2.0 support
  • Three selectable conversion modes including Modbus protocol translation
  • CAN interface galvanically isolated with lightning surge protection
  • Industrial operating range from -40 to 85 Celsius
  • Powered by 12 to 36 V DC drawing under 150 mA at 12 V

Industrial RS-232 to CAN Bus Converter

The UOTEK UT-2505B enables bidirectional data exchange between a DB9 female RS-232 port and a terminal-block CAN bus interface. It supports the CAN 2.0 protocol and operates on 12-36 V DC with a current draw below 150 mA at 12 V. The unit is built for industrial environments with an operating range of -40 to 85 Celsius.

Replacing Basic Serial Bridges

This converter upgrades simple point-to-point links by adding three selectable conversion modes: transparent conversion, transparent identification conversion and Modbus protocol conversion. The jump is worth it when a system must translate between 600-230 Kbps RS-232 traffic and 5 Kbps-1 Mbps CAN bus streams without losing frame structure.

Sustained Load Behaviour

The CAN interface is galvanically isolated from the system and includes lightning protection, allowing continuous operation in electrically noisy installations. Industrial-grade components maintain stable throughput across the full -40 to 85 Celsius temperature span during extended duty cycles.

How it compares

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

Price $65.99
Pricier than about 81% of the 121 comparable items (median $19.99).

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Specifications

Product
Brand nameUOTEK
Model nameUT-2505B
Product typeCANBUS
Ports & slots
First connectorDB9 Female
Second connectorTerminal bloack

Questions about this item

What mounting hardware does the UT-2505B include for DIN-rail installation?

A rail base is supplied with the converter so it can be clipped directly onto a standard DIN rail inside the enclosure.

Which wiring step on the terminal block is most often missed when connecting the CAN bus?

The CAN interface uses a terminal block; the CAN-H and CAN-L wires must be landed on the correct terminals and a 120 Ω termination resistor added at each end of the bus.

What operating voltage range should the power supply deliver for long-term reliability?

The unit requires 12 to 36 V DC; keeping the supply near the middle of this range reduces stress on the internal regulator over the -40 to 85 °C temperature span.

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