RING
TEL
TEL
BAL
MIC
GND RING
CONTACT
ALC
TEL VOLUME
MIC VOLUME
+
BAL
TR
TEL MIC COM
CONTROLS
MUSIC IN BRIDGING
APHEX
Figure 4 shows the wiring
diagram for connecting
microphones to an Avaya
Telephone Paging Amplifier.
Figure 4. Typical Connections to a Telephone Paging Amplifier