4
WIRING INSTRUCTIONS:
__ 1.
Connect Tip of the telephone system 600
Ohm page port to terminal 1 (TIP) of the
V-9941A.
__ 2.
Connect Ring of the 600 Ohm page port to
terminal 2 (RING).
__ 3.
Connect one side of the telephone system
dry contact closure to terminal 3 (GND) of
the V-9941A.
__ 4.
Connect the other side of the contact closure
to terminal 5 (GND ST) of the V-9941A.
__ 5.
Connect Tip and Ring of the talkback
speakers to the V-9941A terminals 6 and 7
(SPKR).
6. Option Switches:
__ a.
"SW1-1" controls the initial alert tone. Turn
the switch ON to precede each page with an
audible tone.
__ b. "SW1-2" controls the repeated alert tone.
Turn the switch ON to have a short tone
burst every 15 seconds during a handsfree
page.
__ 7.
Plug in power supply.
NOTE: "A" battery may be substituted
for "B" battery.
__ 8.
Connect -24VDC "B" battery (may be
referred to as "-" or "signal battery") from
power supply to terminal 4 (-24VDC) on the
V-9941A.
__ 9.
Connect -24VDC "B" ground ("+" or "signal
ground") from power supply to terminal 3
(GND).
__ 10. Connect -24VDC ground (+) from power
supply to telephone system GROUND.
__ 11. " SW3 " turn to the OFF position (Battery
Feed Off).
10
9
7
8
6
5
4
3
2
1
In
hi
bit
M
us
ic
M
us
ic
Sp
kr
Sp
kr
G
nd
S
ta
rt
-2
4V
D
C
G
ro
u
n
d
R
ing
Ti
p
Page Port
R
T
Ground (+)
-24VDC
V-9941A
45 Ohm Talkback Speaker
ELECTRONIC KEY PAGE PORT CONNECTIONS
Electronic Key System
Contact
Closure
SW1
SW3
Location of Screw Terminals,
Option Switches and Volume Controls
RAT
15 Sec Tone
Initial Tone
IATE
Phone to Speaker
Speaker to Phone
Battery Feed
V-9941A One Zone Talkback Control
10
9
7
8
6
5
4
3
2
1
In
hib
it
M
us
ic
M
us
ic
Sp
kr
Sp
kr
Gn
d
St
ar
t
-2
4V
DC
Gro
un
d
Ri
ng
Tip
SCREW CONNECTION DESIGNATIONS
OFF
ON
OFF
ON
