Specifications

6 947939A
microphone: if using a low impedance
balanced
microphone, connect (+) lead to LZ1 and
the (-) lead to LZ2.
___c. Connect one side of the microphone push
to talk switch to the V-9939A SW
terminal.
___d. Connect the other side of the push to talk
switch to the GND OUT terminal.
___12. Connect –24 Vdc (BB) signal battery from
the power supply to pin 30 of the V-9937.
___13. Connect signal ground (BG) of the power
supply to pin 29 of the V-9937.
___14. Volume adjustment:
___a. During initial system set up, set the
screwdriver adjustable volume control on
the V-9939A 1/2 turn clockwise.
___b. Speak through the microphone and adjust
the screwdriver adjustable volume
controls on the V-9939A and output 1 of
the V-9937 to the desired page level.
___c. Access zone through the telephone
system; adjust input 3 volume control on
the V-9937 for the desired page level.
PWR MC HZ RING
PWR LZ1 SW GND
OUT
MTIP
LZ2
AB AG BB BG
-24VDC POWER SUPPLY
SWITCH
AUDIO
MICROPHONE
GND STRAP
V-9939A
ONE-WAY
AMPLIFIED
SPEAKER
ASSEMBLIES
FIGURE 6 - OVERRIDE A SINGLE ZONE WITH A V-9937
S
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30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
-24 OUT
GND OUT
SINGLE TONE
WARBLE TONE
TIP OUT 2
-24 OUT
TIP OUT 1
-24 OUT
T
IP INPUT 3
CONTROL GND IN TIP INPUT 2 TIP INPUT 1
RING INPUT 1
RING INPUT 2
CONTROL GND OUT
RING INPUT 3
GROUND OUT
RING OUT 1
GROUND OUT RING OUT 2
WARBLE TONE
SINGLE TONE
GROUND IN
-24VDC IN
TO A ZONE OF A
PAGE CONTROL
UNIT
B