Williams Sound MOD 112 Przewodnik Instalacji Pobierz pdf (Strona 16)

Williams Sound

Helping People Hear

LINE

Both balanced and unbalanced line level signals can be accommodated. The minimum

acceptable level is approximately 100 mV, and the maximum level before clipping is

approximately 10 V.

25 V, 70 V, and 100 V speaker distribution lines can be connected to the Line input using

attenuators made with resistors or with speaker-matching transformers. Resistor

attenuators yield better results. The minimum acceptable level is approximately 100 mV,

and the maximum level before clipping is approximately 10 V.

ACCESSORY INPUT

Outputs are available directly from several points in the internal circuitry of the modulator.

(See Figures 10 and 11.)

BASEBAND OUTPUT

Carrier tones of either 95 kHz or 250 kHz are provided at this BNC connector. One 50 Ω

device may be connected here using RG-58 cable. Additional devices may be connected by

“looping through” the connected device or by means of a suitable distribution amplifier. The

output impedance is 50 Ω. Frequency accuracy is approximately ± .005%. Deviation is ± 50

kHz, maximum. Average deviation is dependent on program material and whether Limit

mode or Compress mode is selected.

BASEBAND INPUT

An additional modulator may be connected here to allow combining carriers for channels in

addition to 95 kHz and 250 kHz. The input impedance is 50 Ω.

REQUENCY SWITCH

This slide switch selects between carrier frequencies of 95 kHz and 250 kHz.

Model MOD111 Infrared System Modulator

Accessory

Power: 24 VAC,

50-60 Hz, 10VA

Williams Sound Corp., Minneapolis, MN USA

Audio Input

Baseband

Output

Baseband

Input

50 Ohms 50 Ohms

Balanced

Mic (XLR)

Bal or Unbal

Line (1/4")

Plug

Channel

(kHz)

95 250

Input

The input to the modulator

accepts any low impedance

microphone or line level signal.

Baseband Output

Carrier tones of 95 kHz and 250 kHz are provided at

this BNC connector. One 50 Ω device may be

connected here using RG-58 cable. Additional

devices may also be connected in series.

Accessory Connector

Outputs are available directly

from several points in the internal

circuitry of the modulator.

Baseband Input

An additional modulator may be

connected here to allow combining

carriers for more channels. The input

impedance is 50 Ω.

Power In

21 VAC to 26 VAC only, 50 or 60 Hz.

120 VAC (US): TFP 010

230 VAC (CE): TFP 027

Current consumption is

approximately 130 mA.

FIGURE 10: MOD 111 MODULATOR REAR PANEL

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 22 23 24

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