I4-wire card; two ports; three leds; no jumpers or adjustments; four each 50-pin connector telephone to user; two high densi type 78-pin to matrix; 300 hz frequency range; indicates up, loopback, and error
NSN 6645-01-477-5316
NSN 5975-01-133-2738
NSN 4140-01-512-8528
NSN 7035-01-381-6185
NSN 5975-01-628-1589
NSN 4140-00-894-4817
NSN 5975-01-401-5355
NSN 5996-00-556-2479
NSN 6685-00-362-6370
NSN 5910-00-192-9785
NSN 2925-00-964-7128
NSN 5835-01-399-5820
Last Updated: 08/16/2025