Valcom V-1109RTHF, Design/Information

Page: 3 / 7

3 947099
Table 2 - Valcom Power Supplies
Part # Voltage Maximum
Current
Valcom
Power
Units
VP-324D -24VDC 300mA +6
VP-624D -24VDC 600mA +12
VP-1124D -24VDC 1.0 amp +20
VP-2124D -24VDC 2.0 amp +40
VP-4124D -24VDC 4.0 amp +80
VP-6124 -24VDC 6.0 amp +120
VP-12124 -24VDC 12.0 amp +240
There are several cases when more than one
power supply will be required:

When the power required exceeds the
maximum output of the power supplies
available: Add additional supplies as
required.

In large systems or systems with many one-
way horn speakers: Locate separate power
supplies near groups of speakers. Refer to
the Valcom Wire Gauge Guide for guidelines
concerning maximum allowable distances
for power runs.

When the paging system is in several
buildings, or on several floors of a single
building: Locate a power supply in each
building, or on each floor, that contains
equipment requiring power.
Environment
Control Units:
Temperature: 0 to +40°C
Humidity: 0-85% non-condensing
Inside Speakers:
Temperature: -20 to +55°C
Humidity: 0-95% non-condensing
Horn Speakers:
Temperature: -20 to +55°C
Humidity: 0-95% non-condensing
E-Key, PABX, or Dedicated Single
Line Telephone Set
Additional
Zones
(multi-zone
units only)
Talkback Speakers
Power Supply
(if required)
One or more dedicated
single line telephone(s)
Block Diagram for Loop Start Trunk Port And/Or Single Line
Telephone Access of a Valcom Talkback Page Control/Interface
Audio To Up To 40
VALCOM One-Way
Self Amplified
VALCOM
Talkback
Page
Control/Interface
T
R
Telephone
System C.O.
Loop Start
Trunk Port
-AND/OR-
FIGURE 2
To provide handsfree answerback paging on
1A2, E-Key, or PABX Systems, you will need a
talkback control, talkback speakers, and (if
required) a power supply.
The speakers may be anyone of Valcom's 45
Ohm Talkback Speakers. In most cases, if the
control unit requires a power supply, the
VP-624B will be adequate. Larger power
supplies may be required if one-way speakers or
horns are utilized.
Access will be from a C.O. line key on E-Key
Systems, from a loop start trunk port on PABXs,
or from Tip and Ring on one or more dedicated
single line sets. A trunk circuit will be required
on a PABX or E-Key system.
Page Port Access
In general, telephone system page ports are not
capable of passing audio in both directions and,
therefore, are suitable for one-way paging only.
In the case of bi-directional page ports, contact
Technical Support for assistance in choosing the
appropriate talkback page control/interface.
Station Level Paging
Station level access to talkback paging systems
may be accomplished
in certain instances by
utilizing the Valcom V-9940 Station Level Page
Adapter. Due to
the nature of talkback paging with station level
access from various C.O. lines or PABX/PBX
stations, it is advisable to contact Technical
Support prior to configuring your system.