GAI-Tronics 12509-037 Telephone Management Application (TMA) Installation Bulletin (Ver. 7.3.3 and newer) - Manual (Page 17)

Pub. 42004-447A
Telephone Management Application (TMA) Installation Bulletin Page: 17 of 19
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Figure 3 below is a diagram showing connections for a four line monitoring system.
Figure 3. Typical Four-Line Monitoring Detail