--- type: product schema_version: 1 stock_number: "49960-2" canonical_url: "https://www.artisantg.com/TestMeasurement/49960-2/Black-Box-SP400A-R3-Opto-Isolator" json_url: "https://www.artisantg.com/TestMeasurement/49960-2/Black-Box-SP400A-R3-Opto-Isolator.json" generated_at: "2026-11-07T14:55:56.680Z" last_updated: "2026-07-30T09:10:57.047-05:00" --- # Black Box SP400A-R3 Opto-Isolator _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: Black Box - Model: SP400A-R3 - Condition: Used and in Good Condition - Price: Quote only - Availability: In stock - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 5 lb - Shipping dimensions: 14X14X6 in ## Categories - Test Equipment > Optical Test > Couplers (primary) ## Details This unit has a crack in the housing, however this will not affect its ability to function. ### Configuration - Speed: Up to 19.2 kbps - Connectors: (2) DB25 Female - Isolation: 2500 VRMS View Representative Photo of cracked housing. ## Images - - - -