Black Box SP340A-R3 Opto Isolator - RS-232, DB25 Male to DB25 Female, 115.2-Kbps, High-Speed Data Transfer Adapter

Black Box SP340A-R3 Opto Isolator - RS-232, DB25 Male to DB25 Female, 115.2-Kbps, High-Speed Data Transfer Adapter

Black Box SP340A-R3 Opto Isolator - RS-232, DB25 Male to DB25 Female, 115.2-Kbps, High-Speed Data Transfer Adapter

Black Box SP340A-R3

$254.85 $269.85 Save $15
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  • 30 Day Returns
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Product Key Features

  • Protect your computer and your data from ground loops.
  • Internal fiber optic air gap prevents ground loops.
  • Data signals are converted to line pulses inside the Opto-Isolator and continue along the circuit.
$254.85
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  • Description
  • Tech Specs
  • Refund Policy

Black Box

SP340A-R3

Linking two devices powered by separate AC sources can create the potential for a ground-loop surge - a damaging electrical condition that can destroy your computer and wipe out data. But a Black Box ® Opto-Isolator interrupts that lethal pathway by completing the connection between the two devices with an internal fiber optic link.

Data signals, converted to light pulses inside the Isolator, continue along on the circuit. But the fiber optic air gap stops ground loops from wreaking havoc with your hardware.

Our High-Speed Opto-Isolator protects devices with 115.2-kbps serial ports up to 1000 feet (304.8 m) on either side of the interface. If the interface doesn't provide enough power, order the optional 120-VAC Wallmount Power Supply (PS1002).

Return Policy

Time to Return

Standard Return Policy

We offer a hassle-free 30-day returns policy for domestic (US) orders, excluding non-refundable items. Refund or Replacement within 30 days of the delivery date. All products that fall under the Standard Return Policy qualify for our 30-Day Hassle-Free Returns. Please see the section above for more details.

Replacement Only Return Policy

Replacement within 30 days of the delivery date.

Manufacturer Only Return Policy

Covered by the manufacturer's warranty. Please refer to the terms and conditions for the manufacturer's warranty or contact the manufacturer.

Holiday Extended Return Policies

Extended Holiday Return Policy.

Qualifying purchases of products displaying the " Extended Holiday Return Policy ", from November 1st, 2023 to December 25, 2023, are eligible for a Refund or Replacement until January 31, 2024.


Extended Holiday Replacement-Only Return Policy

Qualifying purchases of products displaying the " Extended Holiday Replacement-Only Return Policy ", from November 1st, 2023 to December 25, 2023, are eligible for a Replacement until January 31, 2024.

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