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Black DB9 RS-232 optoelectronic isolated converter with two DB9 connectors

GearMo

GearMo GM-1015-B DB9 RS-232 Optoelectronic Isolated Converter 2,500Vrms

SKU CH-G1KJ-7DZJZ

An RS-232 optoelectronic isolator with dual DB9 connectors providing 2,500Vrms impulse isolation and 500VDC continuous protection for serial links up to 19,200bps

  • ColorBlack
  • Optoelectronic isolation protects equipment from ground-loop damage
  • 2,500 Vrms impulse rating withstands surge and lightning events
  • 500 VDC continuous isolation blocks persistent voltage differences
  • Asynchronous full-duplex transmission at up to 19,200 bps
  • Dual DB9 connectors enable direct in-line RS-232 installation

GearMo GM-1015-B DB9 RS-232 Isolator

The GearMo GM-1015-B is an optoelectronic isolator for DB9 RS-232 serial links. It protects connected hardware from ground-loop voltages, surges, lightning transients and ESD. Industrial engineers and legacy-system integrators use it to harden asynchronous full-duplex channels. The unit sits inline between two DB9 ports without requiring external power.

300 to 19,200 bps transparent throughput

The isolator passes asynchronous data from 300 bps up to 19,200 bps in full-transparent mode. It handles continuous ground differences of 500 VDC and withstands 2,500 Vrms impulse spikes. Communication fails if the link demands higher baud rates or synchronous clocking. The device adds no buffering or protocol conversion beyond the physical layer.

Optoelectronic isolation with zero fan noise

Galvanic separation converts electrical signals to light and back, eliminating conductive paths between ends. No active cooling is present, so operation is silent and power draw is negligible. The black enclosure survives harsh electromagnetic environments while keeping the RS-232 link stable. Heat generation remains minimal during continuous use.

Highlights

  • Optoelectronic isolation protects equipment from ground-loop damage
  • 2,500 Vrms impulse rating withstands surge and lightning events
  • 500 VDC continuous isolation blocks persistent voltage differences
  • Asynchronous full-duplex transmission at up to 19,200 bps
  • Dual DB9 connectors enable direct in-line RS-232 installation

Specifications

BrandGearmo
ModelGM-1015-B
ColorBlack

Questions about this item

Will the GM-1015-B work with my legacy RS-232 equipment running at 300 bps?

Yes, the converter supports baud rates from 300 bps up to 19,200 bps, matching the speed of older serial devices.

How can I verify the GM-1015-B is providing the rated 2,500 Vrms isolation after installation?

Confirm normal data flow across the link; the optoelectronic design isolates both ends continuously, so successful communication at your configured baud rate indicates the barrier is functioning.

What cables are included with the GM-1015-B and what must I provide?

The unit has two DB9 connectors; you supply the serial cables that plug into those ports.

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