Merlin 3070 Service And Maintenance Manual page 230

Testing Your Attendant Console
The test/program (T/P) switch on the left side of the attendant console (see
Figure 11) can be used to test the lights and the ringer. It has three positions:
T– test position
center (dot)– normal operating position
P– programming position.
test/program
switch
After connecting the attendant console to the system, test it by moving the
switch to the T position. This tests the lights and the ringer. If the console
is working properly the red and green lights will flash and the set will ring.
The volume control switch, located on the left side of the attendant console
(see Figure 11), changes the volume of the alerting rings, speaker, and but-
ton clicks.
Sliding the switch away from you increases the volume.
Sliding the switch towards you decreases the volume.
Figure 11.
T/P and Volume Control Switches
Setting Volume Control
speaker/ring
volume control