Valcom v1420 설치 설명서
VALCOM SIGNATURE SERIES
TM
, HIGH FIDELITY
CEILING SPEAKER
Valcom Signature Series
TM
Ceiling Speaker, V-1420, is a high fidelity, self-
amplified (6 Watt amplifier) speaker and may be used to provide one-way
paging and high quality music reproduction from any Valcom page control.
This speaker has an adjustable volume control located on the front of the unit.
The V-1420 required -24VDC, 200mA (4 Valcom power units). The speaker is
available in a white powder epoxy finish.
NOTE:
paging and high quality music reproduction from any Valcom page control.
This speaker has an adjustable volume control located on the front of the unit.
The V-1420 required -24VDC, 200mA (4 Valcom power units). The speaker is
available in a white powder epoxy finish.
NOTE:
No power amplifier required. Do not connect this speaker
directly to a 25/70/100 Volt amplifier as damage to both
the amplifier and speaker may occur. (Recommended
nominal input level to the V-1420 is -10dBm).
directly to a 25/70/100 Volt amplifier as damage to both
the amplifier and speaker may occur. (Recommended
nominal input level to the V-1420 is -10dBm).
MOUNTING CONNECTIONS
Cut an 8.50" diameter hole in ceiling tile. After connections have been made to
the speaker, attach speaker to ceiling tile using the mounting hardware
provided. (A metal backbox with rails is available separately as model
V-9816M).
Typical Connections to a Valcom Page Adapter
Recommended Quantity of Speakers per Specific Power Run
(Standard Category 3 Twisted Pair Telephone Wire)
SPEAKERS PER
POWER RUN
WIRE RUN LENGTH (FEET)
V-1420
24AWG
22AWG
4
300
500
2
500
800
1
775
1200
FCC NOTICE
NOTE: The equipment has been tested and found to comply with the limits for
Class A digital devices, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses and can radiate radio frequency energy and if not installed and
used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.
NOTE: This unit was tested with shielded cables and peripheral devices.
Shielded cables must be used with the unit to insure compliance.
NOTE: The manufacturer is not responsible for any radio or TV interference
caused by unauthorized modifications to this equipment. Such modifications
could void the user’s authority to operate the equipment.
NOTE: The equipment has been tested and found to comply with the limits for
Class A digital devices, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses and can radiate radio frequency energy and if not installed and
used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.
NOTE: This unit was tested with shielded cables and peripheral devices.
Shielded cables must be used with the unit to insure compliance.
NOTE: The manufacturer is not responsible for any radio or TV interference
caused by unauthorized modifications to this equipment. Such modifications
could void the user’s authority to operate the equipment.
TROUBLESHOOTING CHART
SYMPTOMS
ACTIONS
No audio from
speaker
1. Verify volume control is turned up (clockwise).
2. Using a lineman’s test set, check for proper audio level on
2. Using a lineman’s test set, check for proper audio level on
Tip/A and Ring/B leads and if necessary at the source.
Low volume
from speaker
1. Verify volume control is turned up.
2. Check voltage at the speaker when in use (-18 to -24VDC
2. Check voltage at the speaker when in use (-18 to -24VDC
required).
3. Using a lineman’s test set, check for proper audio level on
Tip/A and Ring/B leads. It is possible some low level audio
will be heard with only one side of Tip/A and Ring/B
connected.
will be heard with only one side of Tip/A and Ring/B
connected.
Loud squeal
(feedback)
1. Decrease volume of speaker (counterclockwise).
2. Increase the distance between telephone and speaker.
3. Install confidencer on the telephone in severe problem areas.
2. Increase the distance between telephone and speaker.
3. Install confidencer on the telephone in severe problem areas.
Dimensions/Weight
•
13.00" Diameter x 3.00" D (33.02cm Diameter x 7.62cm D)
•
3.5 lbs. (1.59 kg)
Valcom Page
Control
Control
Page
Out
Out
V-1420
One Way
Amplified
Speaker
One Way
Amplified
Speaker
Tip/A
Ring/B
-24VDC
Gnd
Ring/B
-24VDC
Gnd
2-pair twisted
telephone wire
telephone wire
Valcom -24VDC
Power Supply
Power Supply
FIGURE 1