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Black steel enclosure with DB9 female and male connectors, three LED indicators

STARTECH

STARTECH IC232485S RS232 to RS422/485 Data Converter 15KV ESD

SKU CH-GMR0-AJGW0 MPN IC232485S

Converts RS-232 signals to RS-422 or RS-485 with 15KV ESD protection and up to 921.6 Kbps speeds

  • First connector1 - DB-9 (9 pin; D-Sub) Female
  • Second connector1 - DB-9 (9 pin; D-Sub) male
  • Product colorBlack
  • DetailsEnclosure Type: Steel Serial Protocol: RS-232/422/485 Indica
  • Key featuresRS232 to 2/4-wire RS485 or RS422 conversion Supports RS422 a
  • Product dimensions0.9 in × 4.6 in × 2.3 in (H × L × W)
  • Converts RS-232 to RS-422 or RS-485 with auto-detect switching
  • +/-15KV ESD protection shields all signal pins from surges
  • Steel enclosure measures .9 by 4.6 by 2.3 inches for wall mounting
  • LED indicators show power, receive and transmit activity at a glance
  • Supports baud rates up to 921.6 Kbps for high-speed serial links

Industrial RS232 to RS422/485 Converter

The STARTECH IC232485S converts an RS232 data signal to either RS422 or RS485 standards. It serves engineers and technicians who need to extend serial communication over longer distances in industrial environments. The unit supports both 2-wire and 4-wire RS485 configurations as well as RS422 operation.

Steel enclosure with DB9 connectors

Installation uses a DB9 female connector for the RS232 host side and a DB9 male connector for the RS422/485 field side. A universal power adapter with NA, EU and UK plugs is included. LED indicators show power, receive and transmit activity for quick diagnostics. The steel enclosure provides wall-mountable durability. No driver installation is required for the hardware conversion itself.

15KV ESD protection at 921.6 Kbps

The converter handles sustained data rates up to 921.6 Kbps with +/-15KV ESD protection on all signal pins. Auto-detect and manual switching between RS422 and RS485 modes maintain reliable operation during continuous industrial use. The compact steel housing measures .9 by 4.6 by 2.3 inches and weighs .33 lbs. Buyers needing USB connectivity or optical isolation should consider other models.

How it compares

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

Price $68.99
Pricier than about 82% of the 121 comparable items (median $19.99).

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Specifications

Product
Brand nameStarTech.com
Model nameIC232485S
Product colorBlack
Ports & slots
First connector1 - DB-9 (9 pin; D-Sub) Female
Second connector1 - DB-9 (9 pin; D-Sub) male
Size & build
Product dimensions0.9 in × 4.6 in × 2.3 in (H × L × W)
Product weight0.33 lb (0.15 kg)
Shipping weight0.34 kg
Package size206 × 142 × 41 mm
In the box
In the box1 - RS-232 to RS-422/485 Converter
1 - Universal Power Adapter (NA/EU/UK)
1 - Instruction Manual

Questions about this item

How do I confirm the IC232485S is working after connecting the DB-9 cables?

The green power LED shows the unit is powered. The yellow Rx LED flashes when data is received on the RS-422/485 side, and the yellow Tx LED flashes when data is transmitted from the RS-232 port, giving immediate visual confirmation of traffic in both directions.

What comes in the box and what must I supply myself?

The package includes the IC232485S converter, a universal power adapter with NA/EU/UK plugs, and an instruction manual. You must provide the DB-9 serial cables to connect your RS-232 device to the female port and your RS-422/485 device to the male port.

Should I choose the 2-wire or 4-wire RS-485 mode for my installation?

Use 2-wire mode for half-duplex networks where devices share a single twisted pair. Choose 4-wire RS-485 or RS-422 mode for full-duplex links that need separate transmit and receive pairs. The converter supports both and can also auto-detect the correct setting.

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