Electrodata EIA Interface Test Set, Model ITS-1, with jumpers. VGC!

Electrodata EIA Interface Test Set Model ITS-1

Electrodata EIA Interface Test Set ITS 2

International Data Sciences EIA Interface Monitor and Breakout Panel Model 60

International Data Sciences Model 60 EIA Interface Monitor Breakout Panel RS-232

International Data Sciences Model 60 EIA Interface Monitor and Breakout Panel

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