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The AN/TTC-23 is an air- or vehicular-transportable manual central office which provides switching for 98 local battery or common battery subscribers and 20 manual or dial trunks. The AN/TTC-23 is used at division and corps levels in an area communications system. It replaced the AN~MTC-3

Major Components

Manual Telephone Switchboard SB-248/P

Switchboard Signal Assembly TA-207/P

Power Supply PP-990/G

Telephone Set TA-312/PT

Distribution Box J–1077/U

Air Conditioner, 6,000 BTU

Shelter S-392/TTC-29 (modified S-250/G)

Reference File

  • TM 11–5805–391–15