4 947100
SYSTEM DESIGN
1A2, Dedicated Single Line Set,
E-Key, or PABX Paging
Telephone
System C.O.
Loop Start
Trunk Port
Valcom
Page
Control
Unit
T
R
Additional
Zones
(multi-zone
units only)
Speakers
Power Supply
(if required)
- and/or -
One or more dedicated
single line telephone(s)
DIAGRAM 1
Block Diagram or Loop Start Trunk Port and/or Single Line
Telephone Access of a Valcom Page Control/Interface
To provide one-way paging on 1A2, E-Key PABX
Systems, or from one or more dedicated single line
telephones, you will need a page control unit,
one-way amplified speaker assemblies, and possible a
power supply. In most cases, page access will be via
a line button for 1A2, a loop trunk port for a PABX
or Electronic Key or via Tip and Ring on a singe line
telephone(s).
The control units may be any of the following.
1 zone V-1101A
1 zone V-9937
1 zone V-2000
1 zone V-2001A
3 zones w/all call V-2003A
6 zones w/all call V-2006A
9 zones w/all call V-1109RTVA
19 zones V-119RTVA
18 zones w/all call V-119RTVA/V-1118
20 zones w/all call V-2920
36 zones V-136RTHF
34 zones w/all call V-136RTHF/V-1134
The speakers may be any of those listed in Table 3.
After you have selected the page control/interface and
the quantity and type of speakers for your system, use
Tables 1 and 2 to determine system power.
Add up the total Valcom power units (VPU) that will
be required. Subtract any power units being provided
by page controls featuring integrated power (2000
Series).
The remaining number of power units required will
determine the quantity and model(s) of power supply
required. Reference the next section, "Valcom
Power Units".
Valcom Power Units
Each page control/interface, speaker and peripheral
device has been assigned a Valcom power unit (VPU)
value. Products that provide power, such as the 2000
Series page control/interfaces or power supplies, have
power unit values indicated with a plus (+) sign.
Products that consume power have power unit values
indicated with a minus (-) sign. Products that neither
require nor provide power are indicated by a VPU of
zero (0).
After you have chosen the page control interface,
speakers and accessories for your application, simply
add up all of the Valcom power units [indicated by a
minus (-)] for each item that requires power. This
total tells you how much power you need. If you
have chosen a 2000 Series control/interface, subtract
the total power units provided by this controller from
your previous total. If you come out even, or you
have power left over, you paging system is complete.
However, if you come out with more VPUs required
than provided, you will need additional power.
The additional power required will be provided by
adding one or more VALCOM power supplies as
listed in Table 4.
Table 4 - Valcom Power Supplies
Part # Voltage Maximum
Current
Valcom
Power
Units
VP-324 -24VDC 250 ma. +6
VP-624B -24VDC 600 ma. +12
VP-1024 -24VDC 1.0 amp +20
VP-2124 -24VDC 2.0 amp +40
VP-4024C -24VDC 4.0 amp +80
VP-2048C -48VDC 2.0 amp N/A
VP-412 -24VDC 4.0 amp +80
VP-6124 -24VDC 6.0 amp +120
There are several cases when more than one power
supply will be required:
1. When the power required exceed the maximum
output of the power supplies available: Add
additional supplies as required.
2. In large systems or systems with many horn
speakers: Locate separate power supplies near
groups of speakers. (Refer to Tables 8 and 10
(16 paginas)
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