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 6650-01-240-2334
NSN 5999-01-485-3562
NSN 6240-00-334-6766
NSN 6220-01-521-2720
NSN 5996-01-653-3744
NSN 6620-00-452-5738
NSN 5960-01-628-2760
NSN 5935-00-524-9147
NSN 5950-00-278-1201
NSN 6320-01-512-2031
NSN 5950-01-332-4300
NSN 5835-01-158-6878