Check the listing for details. TTC/Acterna 30481 DSO/DSOA Interface Adapter - New. Condition: New – Open box, Made in USA. Listed at 173.99 USD. You are bidding on an original one TTC / Acterna 30481 DSO/DSOA interface adapter. The adapter is unused and is in excellent condition. It is an essential accessory for technicians working with the Fireberd series. Packaging: Delivered in the original packaging (or neutral protective packaging). optics: No signs of wear, contacts clean and flawless. Manufacturer: TTC/Acterna (now VIAVI Solutions). compatibility: Designed for TTC Fireberd 4000, 6000 and 8000 communications analyzers. scope: Testing DDS lines (Digital Data System) and digital data connections in telecommunications. precision: High-quality workmanship for exact measurement results without signal loss. Plug & Play: Easy connection to the Fireberd interface modules. Industry standard: Robust design for use in the field and in t.