Input and output impedance 600 ohms, freq response transmit from 70 hz to 4 khz, receive from 200 hz to 4 khz, switching is accomplished by pushbutton switches c/o 7 rows horizontally and 9 columns vertically for a total of 63 switches, unit has capability of switching 9 telephone terminals to secure 5 voice channels
NSN 5960-01-170-4057
NSN 5985-01-503-0662
NSN 5945-01-024-2970
NSN 5996-00-138-3072
NSN 6645-00-816-5337
NSN 5998-00-346-1360
NSN 5905-01-442-7303
NSN 6145-01-281-7222
NSN 5910-01-483-1096
NSN 5985-00-518-5240
NSN 7035-01-448-0716
NSN 5930-01-376-5352
Last Updated: 08/13/2025