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EXPANDABLE 24/48/72/96 ZONE
MULTI-ZONE INTERCOM SYSTEM
Model V-2924A, V-2925A, V-2926, V-2928
Valcom, Inc. 5614 Hollins Road Roanoke, Virginia 24019 Phone: 540-563-2000 Fax: 540-362-9800
E-Mail: [email protected] www.valcom.com
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Technical Specification
ARCHITECTS’ AND ENGINEERS
The proposed system is an expandable, multi-zone intercom/paging/signaling/program distribution sound system. The
system is a combination of zone and feature cards, connected and housed in a central location and provides for page
priority of emergency messages from any phone. System provides background music and tone distribution if required.
The expandable intercom/paging system, V-2924A, shall provide telephone accessed two-way voice intercom and paging
utilizing 45-ohm talkback and one-way paging with self-amplified paging loudspeakers. The system shall provide 24
station ports of paging/intercom with handsfree talkback, one-way group call and all call. Using the V-2924A
administrative port, the system shall provide for call origination from designated telephone(s) to any speaker location and
from any of the speaker locations to designated telephone(s). The V-2925A expansion units shall provide for expansion in
24 station increments with a maximum capacity of 96 stations. Additionally, provisions shall be made for up to six fully
expanded 96 zone systems to be interconnected to allow one-way global all call and one-way global priority pages of up
to 576 stations. The V-2926 enhanced feature option card provides Windows 95, 98, NT, 2000 and XP programming
tool, enhanced caller ID integration and architectural room dialing of station ports. It also features remote maintenance
and diagnostics to facilitate optional maintenance from offsite service location via modem. The V-2928 Tone/Event
Scheduling software option shall provide added features to automatically distribute tones and messages via user defined
schedules.
The intercom shall be accessible from a C.O. line position of a key system, loop start (or caller ID) trunk port of PBX,
dedicated single line telephone set and STA outputs connect to 45 ohm talkback speakers equipped with optional call
buttons. The system shall provide the following features; “Meet-Me” and “Follow Me” capability, call queue, two or three
digit numbering plan, dial tone, ringback tone, alert tone, repeated alert tone, the ability to operate electric door locks,
inhibit input, evacuation tone input, time tone input, night ring input, enhanced caller ID, SMDR printer port, and shall be
compatible with the Valcom VPB-260 battery backup set.
The system shall provide an override input for system-wide emergency one-way announcements. With the V-2926 Option
Card, stations shall be dial selectable via flexible two, three, or four digit programmable user numbers.
The intercom shall provide a tip and ring input impedance of 600 ohms with a nominal level of -10 dBm. The speaker
output impedance shall be 45 ohms. Each port may be strapped to provide a one way paging audio signal to drive groups
of self-amplified paging loudspeakers. The unit shall provide a line level background music/message input with an input
impedance of 10k ohms. The music/message input shall have a frequency response of 50 Hz to 17 kHz +/- 3 dB with less
than 1.0% distortion and greater than -70 dB signal to noise. The one way page amplifiers shall have a frequency
response of 150 Hz to 7.5 kHz +/- 3 dB with distortion less than 1.0 % and signal to noise greater than -70dB. The unit
shall provide the following additional inputs: inhibit (ground activated), -10 dBm/10k ohm evacuation tone input, a -10
dBm/10k ohm time tone input and a universal night answer activation input. The integrated ring supply shall provide 90
Vac, 30 Hz signal in the following optional ring patterns: 2 sec on, 4 sec off ; 1 sec on, 4 sec off; double ring burst. The
following auxiliary output contacts shall be provided: remote signaling closure (follows ring pattern), 4 momentary contact
closures to operate electric door locks.
The intercom shall operate on 120Vac/60 Hz or 240Vac/50 Hz. When using the V-2926 Option Card, the system shall
also provide the following features: User page groups programmable for dial code selection of multiple pre-defined page
groups, time sync relay, enhanced caller ID, flexible architectural numbering, EEROM data storage, and internal real time
clock. Additionally when using the V-2928 Option Card, the system will provide automatic timekeeping and audio control
functions using event scheduling.
The V-2924A system programming tool shall be a Windows 95, 98, NT, 2000 and XP based software tool designed
exclusively for the system and provided with either the V-2926 or V-2928 optional enhancement cards.
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