3
947221
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-1222C, V-1224C - Wall Speakers: These wall
speakers 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.
V-1226C - Corridor Speaker: Corridor speakers
should be placed every 30 to 40 feet.
Table 1
# of Speakers per Audio Run
Wire Run in Feet
# of Speakers
100
150
200
150
400
100
800
50
1600
25
Table 2
# of Speakers per Power
Wire Run in Feet
# of Speakers
(22 AWG)
100
30
200
30
400
15
800
7
1600
3
INSTALLATION
Page Control Access
The Valcom Dual Input One-Way Amplified Interior
Speakers provides a means for connecting one
speaker to two audio sources. A standard paging
system is made up of 3 basic components:
•
Appropriate one-way speaker assembly
•
Page Control
•
Power Supply sized to provide power to
operate the amplified speaker
assemblies and page control
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).
See Figure 4 for Screw Connection Location and
Designations. See Figure 5 for the required
connections when using the Dual Input One-Way
Amplified Interior Speakers with a page control.
