AT&T 75 - Page 534

66-TYPE HARDWARE
Trunk/Auxiliary Field Connections—Terminals Used for Emergency Failure Transfer and
as Normal Extensions
7.
8.
9.
10.
11.
12.
13.
14.
At Trunk/Auxiliary Field, run and connect pair of wires between PWR terminals
on the yellow emergency transfer connecting block to EM TRANS RELAY PWR
terminal (see Figure 4-70).
Run and connect CO trunk leads from the purple field TC terminals on the yellow
emergency transfer connecting block for each trunk.
Run and connect CO trunk circuit leads from the green field to TK terminals on
the yellow emergency transfer connecting block for each trunk.
Run and connect voice terminal leads from the purple analog line board row to LC
terminals on the yellow emergency transfer connecting block for each terminal.
Run and connect the ST terminal leads on the yellow emergency transfer
connecting block for each emergency transfer terminal to the terminal appearance
in the purple Trunk/Auxiliary Field.
Connect the terminal appearance in the purple field row to the blue or white
Station Distribution Field.
If ground start must be provided, do step 14; otherwise, go to step 15.
Run and connect two wires from ground terminals to the third pair for each
emergency terminal appearance on the purple Trunk/Auxiliary connecting block.
Loop the wires from the first appearance to the last if enough ground terminals
are not available (see Figure 4-73).
4-108