Instrukcja obsługi Valcom V-9924C

Valcom Dzwoni alarm V-9924C

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Issue 1
1 947023
V-9924C
COMMON AUDIBLE RINGING UNIT
GENERAL
The Common Audible Ringing Unit provides an
audible signal over the paging system when
there is an incoming call. It is used between a
telephone system and the public address
system.
SPECIFICATIONS
Activation
• 1A2 Bell/Buzzer ICM
• PABX Station Port
• Contact Closure
Features
• Activates via ringing voltage, buzzer voltage
or contact closure
• Capable of switching signal to three zones
simultaneously
• Uses standard 1A2 key system voltages
• Each zone is equipped with a 5 Watt
amplifier and volume control
• Screw terminal connection
• Compact size, can be mounted on wall or in
cabinet
• Automatically switches paging speakers
from paging system to audible signal of the
V-9924C during the ring interval of the
incoming call
• Variable pitch control
• Two auxiliary contact closures
Other Materials Required
• -24VDC power supply
• Cat 3 or 5 twisted pair telephone cable
• Mounting screws and hardware
Dimensions/Weight
• 8.20" H x 4.55" W x 2.30" D
(20.83cm H x 11.56cm W x 5.84cm D)
• 1.3 lbs. (0.59kg)
Power Requirements
The V-9924C requires a -24VDC "B" battery
and draws 50mA idle and 300mA maximum
operating.
Signal Requirements
The V-9924C requires interrupted ringing or
buzzer voltage or dry contact closure to operate.
The output of the V-9924C will follow the
interruptions of the input. The ringing voltage
should be approximately 90VAC and the current
requirement would be 8mA. The buzzer voltage
should be approximately 18VAC and the current
requirement would be 10mA. The V-9924C
pulls approximately 3mA through a dry contact
closure for activation. Ringing and buzzer
voltages cannot be applied simultaneously. Use
only one method of activation.
2 947023
GROUND
-24 VDC
AUX 2 N.O.
AUX 2 COMMON
UNA CLOSURE
ZONE 3 OUT - TIP
ZONE 2 OUT - TIP
ZONE 1 OUT -RING
90 VAC SIGNAL
ZONE 3 IN - TIP
AUX 1 N.O.
SIGNAL COMMON
18 VAC SIGNAL
AUX 1 N.C.
UNA CLOSURE
AUX 1 COMMON
ZONE 1 IN - TIP
ZONE 2 IN - TIP
AUX 2 N.C.
ZONE 1 IN - RING
ZONE 1 OUT - TIP
ZONE 2 IN - RING
ZONE 2 OUT - RING
ZONE 3 IN - RING
ZONE 3 OUT - RING
11
12
13
7
22
14
15
25
23
24
10
8
16
17
1
2
18
19
3
4
20
21
5
6
9
From Page Unit
Speakers for Zone
From Page Unit
Speakers for Zone
From Page Unit
Speakers for Zone
System
To UNA or Ring
Power
AUX Relay
AUX Relay
Common
Audible
To Key
Dry Closure
Supply
Contacts
Contacts
FIGURE 1 – SIMPLIFIED BLOCK DIAGRAM
INSTALLATION
Precautions
Failure to observe the following precautions
could result in damage to the V-9924C and
other equipment.
a. Unplug the power supply when connecting
the power leads and signal leads to the unit.
These leads are brought in on adjacent
terminals. Accidental bridging of these two
terminals could damage the equipment.
b. Use pared crossconnect wire for all voice
connections and voltages.
c. Set all volume controls to their minimum
(counter clockwise) level.
Mounting
Remove the metal mounting plate from the rear
of the V-9924C enclosure. Using two #6 ¾"
wood screws, mount the plate in a vacant space
on the backboard with the telephone system
common equipment. Both mounting holes
must be utilized to insure secure mounting
of the unit (see Figure 1A).
Open the V-9924C enclosure to access
connections and option switches. Slide the rear
of the unit (contains the board) onto the
mounting plate and lock in place with screw
provided. Make connections.
Signaling Connections
The V-9924C can be activated via ringing
voltage, buzzer voltage or a dry contact closure.
When used with buzzer voltage, apply one side
of the pair to SIG COMMON (pin 11 or 26) and
the other side of the pair to 18VAC SIG (pin 12
or 27). For ringing voltage connections, put one
side of the pair on SIGCOMMON (pin 11 or 26)
and the other side of the pair to 90VAC SIG (pin
13 or 28).
The V-9924C can also be activated by
connecting one side of a dry contact closure to
pin 7 and the other side of the dry closure to pin
22.
Speaker Connections
The V-9924C Common Audible Ringing Unit is
capable of switching up to three zones of
speakers to the audible signal generated by the
unit. The device is intended to be placed in
series with the speakers. Zone 1 IN (pins 16
and 17) are connected to the speaker/zone
output leads of the page control. Zone 1 OUT
(pins 1 and 2) are connected to the speakers.
Zones 2 and 3 hook up in a similar fashion.
Refer to Figure 2B for pin numbers.
Power Connections
Connect -24VDC from the power supply to pin
15 or 30 on the crossconnect block and ground
to pin 14 or 29.
Contact Closure
Two form C auxiliary contact closures are
provided on the V-9924C. These contacts
follow the input cadence and may be used for
special applications. The contact ratings are 1
Amp at 24VDC.
Set Up
After all connections are complete and double
checked, apply voltage to the unit. Place a call
to the telephone system and while ringing or
buzzer is being applied to the unit or when the
dry contact closure closes, adjust the volume of
each zone by turning the volume control
clockwise for each zone. Replace cover when
all connections and adjustments are complete
and lock in place using the #6 ½" screws
provided.
3 947023
OPERATION
Figure 3 shows a V-9924C simplified schematic.
When the V-9924C is idle, 1T IN is shorted to 1T
OUT, 1R IN is shorted to 1R OUT, 2T IN is
shorted to 2T OUT, 2R IN is shorted to 2R OUT,
3T IN is shorted to 3T OUT and 3R IN is shorted
to 3R OUT.
A signal appearing at the T IN, R IN terminals
will also appear at the T OUT, R OUT terminals
for each zone.
Signaling
When ringing or buzzer voltage appears at the
signaling input leads of the V-9924C or UNA
closure pins are connected, relays are
energized and the 1T OUT, 1R OUT, 2T OUT,
2R OUT, 3T OUT, and 3R OUT leads are
switched to the outputs of three 5 Watt
amplifiers (one for each zone). At the same
time, the electronic warble tone is connected to
the input of each of the amplifiers and the warble
signal (which follows the interrupted ringing
pattern) is broadcast to all of the speakers.
Each zone has its own volume control so the
volume can be set to a comfortable level.
Pitch Control
Dipswitches have been provided to vary the
pitch of the warble ring tone should a different
pitch be desired. Generally, this control does
not require adjustment (see Figure 2B). If
adjustment is necessary, see chart to select
desired pitch (see Figure 2A).
FIGURE 2A
TO REMOVE COVER
LOOSEN SCREW ,
THE N AC TIVATE LATC H
PLASTIC
COVER
CIRCUIT BOARD
HOUSING ASSEMBLY
SNAP LATCH
METAL W ALL
MO UNTING
PLATE
WIREWAY OPENING
TO W ALL PLATE AND
JUNCTIO N BOX
WIRE TIE LOOP
WIRE TIE USED TO B UNDLE WIRES
ENTERING AND LE AVING TERMINAL AREA
SNAP LATCH
FOR COVER
.155 DIA. HOLES FOR MOUNTING TO
SINGLE OR DO UB LE GANG JUNC TIO N BOX
HOLE PATTERN MATCHES BOTH EURO
AND US JUNCTION BOXES
1.5 x 2 W IRE ACCESS OPENING
TO J UNC TIO N BO X
BRACKET
LOCKING
SCREW
FIGURE 1A
LOW
MED
H I
DEFAULT
BIT 2
OFF
OFF
ON
ON
OFF
ON
OFF
ON
BIT 1

Specyfikacje produktu

Marka: Valcom
Kategoria: Dzwoni alarm
Model: V-9924C

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