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6.2.2 TELEPHONE LINE INTERFACE (SEE Fig. 19)
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The telephone line is connected to a bridge rectifier D8. Surge suppressor SA3 protects against
excessive line voltages. Test points are TP40 (A), TP26 (B). Bridge rectifier D8 provides for lines of
either polarity. The output of D8 is "Line +" (TP50)and "Line -" which is ground.
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http://202.224.189.179/view_new/OT/KX-TCD725RUM/SVC/s0602020000.html13.10.2007 10:14:33
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