ARCHITECTS’ AND ENGINEERS’ SPECIFICATIONS
MODEL V-2003AHF THREE ZONE INTEGRATED TALKBACK PAGE CONTROL
The Three-Zone Integrated Talkback Page Control, Model V-2003AHF shall be a wall or shelf mounted, telephone
compatible, three zone, two-way talkback/one way, page control unit with integrated power supply, single/warble tone generator
and background music input. The unit shall be optionally loop start, ground start or contact closure start and shall be capable
of recognizing either DTMF tones or rotary pulse for dial selection of three individual zones and all call. The unit shall be
programmable on a per zone basis for single tone and interrupted warble tone, background music, and handsfree talkback or
one-way page operation. The System options shall include dial tone, ringback tone/alert tone. The unit shall provide AGC
circuitry for voice page input.
The unit shall provided three individual one-way low level outputs for each zone. Individual handsfree talkback output
shall also be provided for each zone. All call shall be one-way operation only. Access of specific zones shall not affect features
programmed for other zones, i.e. background music shall mute only in the zone being paged while other zones programmed for
background music shall not be affected. Audio output signal levels must not exceed -10 dBm nominal for one way, 1 watt for
talkback.
In connection with a telephone system, the unit shall have the ability to provide loop current, the detection of which shall
indicate a request for service (in the loop start mode of operation). Ground start operation shall be available as an optional mode
of service request. A battery feed switch located on the unit shall enable or disable the loop current option of the tip and ring
connections. A second switch shall select loop start or ground start service request options.
In connection with a telephone system supplying "A" lead control from each telephone, the unit shall also have the
ability to provide inhibit (speaker cancel) to allow handset to handset "meet me" answer to a page without the paging system
broadcasting the conversation.
The unit shall have the ability to provide a single tone and an interrupted warble tone over page. The single tone shall
be activated by a contact closure and shall follow the contact operation. The interrupted warble tone shall be activated by a
contact closure or a 90 Vac ring signal. The single tone shall have priority over the warble tone in the instance of coinciding
activation.
The unit shall provide the ability to program features on a per zone basis. A dip switch shall be provided for zone feature
and system option programming. Dialing codes shall be 1, 2, and 3 or 5, 6 and 7 for individual zones and 4 or 8 for all call. The
detection of the "#" tone shall return dial access.
The unit shall be equipped with a 50 pin male amphenol connector for input and output connections and an RJ11 jack
for page tip and ring input. Volume controls shall be provided for phone to speaker, speaker to phone, tones, background music
and page/all call.
The unit shall provide a three conductor grounded power cored with NEMA 15-5P type plug for AC input and shall
provide auxiliary -24 Vdc and GND outputs. The outputs shall provide a total of 500 mA of -24 Vdc for powering one-way
amplified speakers or other accessory devices. The chassis shall be AC grounded. The AC input shall be fuse protected at 1.0
Amp. The unit shall be UL Listed.
The unit shall have a power consumption of 1 Amp at 120 Vac. Page input shall have an impedance of 600 Ohms.
Music source impedance shall be 8 to 600 ohms. Music input level shall be -10 dBm nominal. Low level output impedance shall
be 8 ohms. Low level output level shall be -10 dBm nominal and shall not exceed a maximum of 0 dBm. Handsfree talkback
output impedance shall be 45 ohms. Handsfree talkback output level shall be 1 watt nominal. Voice switch sensitivity shall be
-26 dBm. Operating temperature shall be +32 to 104 °F (0 to + 40 °C). Operating humidity level shall be 0% to 85% non-
condensing.
The Battery Back-up Supply, Model VPB-260, shall be available separately. It shall provide a polarized molex
connector compatible with the molex connector on the V-2003AHF. In the even of power failure, it shall provide power back-up
to the V-2003AHF and any additional equipment powered by the DC outputs on the V-2003AHF.
The housing of the unit shall be constructed of gray painted aluminum alloy. The maximum dimensions shall be 7.13" (18.09
cm) H x 10.0" (25.4 cm) W x 3.0" (7.62 cm) D. Shipping Weight shall be approximately 6.25 lbs (2.38 kg)
5614 Hollins Road Roanoke, Virginia 24019 Phone: 540-563-2000 Fax: 540-362-9800
E-Mail: [email protected] www.valcom.com
