AN/TTC-47

The AN/TTC-47 NC, also called NCS, is configured in one S-250/G and one S-250E/G shelter, each transported on an M-1037 (HMMWV). The NC/NCS is the hub of the MSE node providing network interface for the subscriber access elements. It provides automatic subscriber finding, deleting the need for knowledge of the subscribers' geographical location.

• The ON-306/TTC-47 switching shelter provides the external interface, circuit switching, and associated functions.

• The OL-413/TTC-47 operations shelter provides the central processing and operator interface functions. The NC/NCS provides automatic subscriber finding features which allow permanent subscriber address assignment and negates the need for knowledge of subscriber geographical location and switch affiliation at the subscriber level. Power

to both assemblages is provided by a PU-753/M, 10-kW, trailer-mounted, diesel generator.

Major Components

OL-413/TTC-47

• 1 Shelter S-250/G

• 1 Switch subsystem AN/TTC-47:
  • 1 LCSP (Part of AN/TTC-4)
  • 1 Switching processor system (Part of AN/TTC-4)
  • 1 Plasma display unit (Part of AN/TTC-4)

• 1 Net control device KYX-15

• 1 Communication modem

• 1 VINSON COMSEC KY-57

• 1 Environmental control unit

• 2 Junction box J-1077/U

• 1 Intercommunications station LS-147

• 1 Workstation

• 1 DNVT TA-1035/U

• 6 Intershelter cables

• 1 Power cables CX-7453 and CX-7705 (Shelter power cables are connected in series)

ON-306/TTC-47

• 1 Shelter S-250E/G

• 2 TDSGM

• 15 Trunk encryption device KG-194A's

• 8 Loop key generator KG-112

• 1 Automatic key distribution control KGX-93

• 1 Transition unit HGF-93

• 1 Intercommunications station LS-147

• 2 Signal cable CX-4566

• 1 Packet switches AN/TYC-19 and AN/TYC-20