Specifications
11 947169
Specifications
Table 4 describes the specifications of the AmpliCenter D20, D100, and D300
models.
Table 3. AmpliCenter Specifications
Features ■ Telephone Paging Access: The AmpliCenter accepts inputs from telephone system (PBX) ground start or
loop start trunk ports, dry loop 600 ohm page ports, dry loop (hi Z), or amplified microphones.
■ Music interface: The AmpliCenter is the unit to which the background music source (CD, radio, tape
player) is connected, for distribution to the paging system.
■ Volume control: The AmpliCenter has music ducking (mute) level, music volume level, and bass control
adjustment pots on the rear panel.
■ Remote amplifier connection: The AmpliCenter provides 0 dBm audio output for connection to a remote
amplifier, which receives a contact closure control signal from the AmpliCenter.
Rated Power
■ D20: up to 20 Watts total speaker load, for a 70V constant voltage distribution system.
■ D100: up to 100 Watts, for a 70V constant voltage distribution system.
■ D300: up to 300 Watts, for a 70V constant voltage distribution system.
Dimensions
■ D20 and D100: 3-1/2 foot (8.9 cm) high x 19 foot (48.25 cm) wide x 5 foot (12.7 cm) deep.
■ D300: 3-1/2 foot (8.9 cm) high x 19 foot (48-25 cm) wide x 7.25 foot (18A cm) deep.
Weight
■ D20: 5 1bs (11 kg); D1OO: 6 1bs (13 kg); D300: q 7 lbs (14 kg).
Load Impedance
■ Minimum, D20: 250 ohms, D100: 50 ohms, D300:16.7 ohms.
Frequency Response
■ 60 Hz to 16 KHz
Total Harmonic
Distortion
■ Less than 1%, at rated power, 60 Hz to 16 kHz.
Hum and Noise
■ Less than 80 dB below rated output, 20 Hz to 20 kHz bandwidth, unweighted.
Telephone Paging
Access
■ Automatic Level Control: 15:1 compression ration above -15 dBm input; Gain Below Limiting Knee: 56
dB; ALC Attack Time: Less than 3 msec.
Music Input
■ Sensitivity: 180 mV for rated output, single channel input. 90 mV with both inputs driven.
■ Impedance: 20 kohms, unbalanced, each input (left & right).
Overload Protection
■ Current limiting, thermal shutdown, short circuit, reactive load, and internal DC fault protection.
Approvals
■ C.S.A 950, NRTL/C.
RJ-11 Jack
Specifications
■ Talk battery: 24 volts, loop start or ground start, negative voltage ring lead.
■ Impedance: 600 ohms and 100 kohms.
Temperature
■ 0 to 40°C (32°F to 104°F) operational; to +50°C (122°F) with forced air.
Range
■ -20 to +70°C (28°F to 158°F) storage and shipment.
Environmental
Requirements
■ Locate in an area free of excess moisture, corrosive gases, dust, and chemicals.
Humidity: 5% to 95%. (noncondensing) storage/shipment and operation. Altitude: sea level to 10,000 ft.
(1048 to 648 millibars) operational, 40,000 ft. maximum shipment.
Electrical, Power, and
Grounding Requirements
■ 105-120 VAC, 50-60 Hz; or 210-240 VAC 50-60 Hz (automatic selection).
■ Outlet must be a 3-prong outlet, separate ground, not controlled by an on/off switch.
■ D20: 1 amp max., D100: 2.5 amp/1.25 amp max., D300: 8 amp/4 amp max.
■ A. Use the power cord supplied with the unit, or an equivalent cord that meets applicable safety codes. Do
not cut or remove the third wire ground prong.
■ B. The attachment-plug receptacles in the vicinity of the product or system are all to be of a grounding
type, and the grounding conductors serving these receptacles are to be connected to earth ground at the
service equipment.