16. If you are using CX-11230A/G in a high speed DGM cable system, you
would use the high speed restorer TD-1219/G for this operation. See Figure
Restorer, pulse form TD-1219.
17. When it requires that you troubleshoot CX-11230( )/G, you have to use
one of two telephone test sets. For PCM cable, you would use AN/PTM-7 found
in the ACCP Subcourse SS0427. For DGM, you have to use telephone test set
TS-3647/G. See Figure 1-11.
Telephone test set TS-3647/G.