4 chan telephone circuit; 2 spiral 4 transmission line use; 200 hz to 12 khz carrier freq range; 1000 hz ring circuit; 400 to 800 mi oper dist; alt oper pwr rqmt ac 115v, 50 to 60 hz, 1 ph, 230v, 50 to 60 hz 1 ph, dc 12v; components list doc a tech man tm11-341 pg 142; sig telephone terminal set type tc-21-a and tc-21-b; genl purpose use
Two or more carrier telephone terminals with operating accessories for two way communication. It may include necessary wiring facilities.
Classification: Parts for apparatus for transmission or reception of voice, images or other data, including apparatus for communication in a wired or wireless network
NSN 6130-01-503-8669
NSN 6620-01-318-8314
NSN 6130-01-427-9604
NSN 6130-01-283-3413
NSN 5835-01-495-5986
NSN 6620-00-104-6937
NSN 6620-00-993-5547
NSN 5920-01-641-7876
NSN 6145-01-596-1221
NSN 6610-01-196-6388
NSN 5998-01-408-0804
NSN 5998-00-290-1856