Electrodata EIA Interface Test Set Model ITS-1

Electrodata EIA Interface Test Set ITS 2

Electrodata EIA Interface Test Set, Model ITS-1, with jumpers and cables

International Data Sciences Model 60 EIA Interface Monitor and Break Out Box

International Data Sciences Model 60 EIA Interface Monitor and Breakout Panel

IDS International Data Sciences Model 61 Tri-State EIA Breakout Panel