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Telephone Connecting and Switching Group, part of the later AN~MTC-1A

Major Components

1 Shelter, Electrical Equipment S-366( )/MTA-4B

3 Main Distribution Frames Telephone TA-454/GRA-14(V)

2 Telephone Circuit Line Relays TA-452/GTA-14(V)

1 Panel, Power Distribution SB-1399/GTA-14(V)

1 Telephone Circuit Trunk Relay TA-453/GTA-14(V)

3 Telephone Sets TA-312/PT

See Also