For the retro tech fans, check out this Black Box RS-232 to V.35 Interface Converter. This standalone converter offers bidirectional conversion of commonly used V.35 and RS-232 signals. It supports 11 active RS-232 and 14 active V.35 leads and features DB25 male and M/34 female connectors. According to the manual, the IC221A-R3 was manufactured in 1994, so playing with this feels like stepping into a time machine! There are more modern interface converters available, but none give you the genuine 90’s feel the Black Box RS-232 to V.35 Interface Converter offers. 

Converter specs: https://www.blackbox.com/en-au/store/product/detail/Sync-RS-232-to-V-35-Interface-Converter-DB25-to-M34/IC221A-R3 

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