Valcom V-9923B Instruction Manual page 8

Diode 1N4003 or eq.
BK/BL
OUT
BL/BK
IN
(Portion of
Connecting
Block)
FIGURE 7
CONNECTIONS OF V-9923B FOR
OPERATING A DC SLAVE RELAY
T
TO PBX TRUNK OR 26
SPARE LINE BUTTON
ON TELEPHONE
R
(ACCESS)
1
TONE OR ROTARY
PULSE DECODING
LS
LAMP SUPPLY
2
L
LAMP ON LINE BUT.
27
INH
"A" LEAD OF LINE BUT.
3
A GND.
A BATT.
B GND.
B BATT.
Relay Coil
DC Power Supply
depends on relay
requirements
K2
LINE
SUPERVISION
K2
BATTERY
FEED
K2
LOGIC AND
MEMORY
K4
INHIBIT
CIRCUIT
VOLT
REG.
FIGURE 9
V-9923B SIMPLIFIED SCHEMATIC
8
SW OFF
TWO DIGIT
THREE DIGIT
1
OPERATION OPERATION
CODE NO CODE
2
VERIFICATION VERIFICATION
MUST BE IN THE ON POSITION
3
FLASHING
4
LAMP
2 DIGIT CODES: 11-19, 21-29, ., 91-99
3 DIGIT CODES: 111-119, 121-129,
...., 991-999
OFF ON
FIGURE 8
OPTION SWITCH SETTINGS
K3
RING
DETECTOR
K1
OSC. AND
AMPLIFIER
K1
K1
CONTROL
CIRCUIT
K3
ON
SOLID
LAMP
TO
29
TO ANALOG
STATION OF
PBX (ANSW ER)
RO
4
TT
40 TONE
OUTPUT
RT
15
OUT
SW ITCHED
36
RELAY
IN
OUTPUT
11
EP1
47 TO NEXT
V-9923B
EP2
22
947923