Valcom V-1220 사용자 설명서

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NOTE:  When using Valcom Dual Input 
One-Way Interior Speakers with a handsfree 
page control, it is recommended that a V-1092 
Volume Control be connected between the zone 
output and the speaker input to lower the signal 
level to the one-way speakers (to prevent 
overdriving of inputs). 
 
25V or 70V Paging Systems
 
When using the One-Way Amplified Speakers 
with an existing 25 or 70V paging system, the 
following equipment will be required: 
 
•  Appropriate one-way speaker 
assembly 
•  Power supply sized to provide 
power to operate the amplified 
speaker assemblies 
•  V-1095 70 Volt Expander 
Background Music 
The Valcom Dual Input One-Way Amplified 
Speakers may be used with a page control for 
the purpose of providing background music on a 
per zone basis along with one-way voice paging 
(See Figure 2 for a Background Music Block 
Diagram). 
 
NOTE:  When using the Dual Input One-Way 
Amplified Speakers with background music and 
a handsfree page control unit, it is 
recommended that a V-1094A Page Port 
Preamp/Expander be connected between the 
zone output and the speaker input to eliminate 
backfeed of the background music to the 
handsfree control unit. 
MUSIC
SOURCE
PAGE
CONTROL
POWER
SUPPLY
DUAL INPUT
ONE-WAY
AMPLIFIED
SPEAKER
FIGURE 2 – BACKGROUND MUSIC BLOCK
DIAGRAM
V-1094A
  *
* The V-1094A is recommended when using
  Handsfree Page Control
 
Group Call
 
The Valcom Dual Input One-Way Amplified 
Speakers may be used with a multi-zone page 
control to provide simultaneous paging to a 
group of zones.  (See Figure 3 for a Group Call 
Block Diagram). 
 
ZONE 1
ZONE 2
ZONE 8
(Group 1)
PAGE
CONTROL
DUAL INPUT
ONE-WAY
AMPLIFIED
SPEAKERS
POWER
SUPPLY
FIGURE 3 - GROUP CALL BLOCK DIAGRAM
INPUT 1
INPUT 2
INPUT 1
INPUT 2
 
 
NOTE:  When using the Valcom Dual Input 
One-Way Interior Speakers with a handsfree 
page control, it is recommended that a V-1092 
Volume Control be connected between the zone 
output and the speaker input to lower the signal 
level to the one-way speakers (to prevent 
overdriving of inputs). 
 
Speaker Cabling 
All Valcom Dual Input Amplified One-Way 
Interior Speakers require six conductor wire, 
standard 22 or 24 gauge station wire is 
acceptable.  Shielded wire is not required or 
recommended.  Refer to Tables 1 and 2 when 
planning a system. 
 
Coverage 
V-1220 - Ceiling Speaker:  The area covered by 
a ceiling speaker is determined by the height of 
the ceiling.  If the ceiling height is 8', the speaker 
will cover approximately 250 sq. ft.; if 9 to 15', 
the speaker will cover approximately 400 sq. ft.; 
if 15 to 35' high, the speaker will cover 
approximately 850 sq. ft. 
 
V-1222 - Wall Speaker:  Wall speaker will cover 
an area up to 600 sq. ft.  Wall Speakers should 
be spaced 20 feet apart.  Good quality paging 
will be heard up to 30 feet in front of the 
speaker.
SECOND
AUDIO
SOURCE
PAGE
CONTROL
POWER
SUPPLY
DUAL INPUT
ONE-WAY
AMPLIFIED
SPEAKER
FIGURE 1 - PAGE SYSTEM BLOCK DIAGRAM