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 5915-01-305-3553
NSN 6220-01-526-7800
NSN 5915-01-647-9919
NSN 6610-01-396-5628
NSN 6645-00-488-4432
NSN 5999-00-106-2038
NSN 6650-01-479-5386
NSN 6650-00-773-0234
NSN 5996-00-573-1853
NSN 4140-00-764-1005
NSN 6610-01-412-9313
NSN 6620-01-052-2773
Last Updated: 05/31/2025