Technical data

TECHNICAL, DATA PACKAGE
Model RMS300
TW Intercom System Rack Mount Speaker User Station
USER STATION SPECIFICATIONS
Input DC voltage:
DC Current
Impedance across line:
Ambient Temperature Range
Noise contribution
to 200 ohm line:
Microphone Preamplifier
Input impedance*
Source Impedance*
Maximum Input Level*
Voltage gain:
Frequency Response
Limiter range
Carbon Mic Excitation Current
20 to 35 volts DC, operating from -200 to +36 volts DC without
damage
Quiescent, 10 to
40 milliamps
50 milliamps, typical (w/25 ohm headphones)
75 milliamps, typicall (w/25 ohm headphones
+ light)
100 milliamps, typical(w/8 ohm speaker
10,000 ohms typical;
ohms worst case dynamic operation
Operating: 0 C to
60 6
Storage: -55 C to 125 6
One Unit: -75 dBu
Ten Unit: -67 dBu
470 ohms
200 ohms, nominal
150 millivolts
54 dB
100 Hz to 10,000 Hz, 3dB
50 dB
10 milliamps, nominal
"Dynamic Microphone Input
Current Source
Transfer ratio:
Output:
Headphone Amplifier
Overall voltage gain
Overall voltage gain
Output power:
Frequency Response
Headphone Impedance Range
Sidetone Adjustment Range
Call Light:
Dimensions
5 milliamps/l.5 volts
5 milliamps into 200 ohms
24 dB
9 volts peak-to-peak into 25 ohms
Headset station: 112 watt into 25 ohms
Speaker Station: 2 watts into 8 ohms
150
Hz to 8,000 Hz, 3 dB
25 to 600 ohms
20 dB to full on
Signaling Frequency 20,000 kHz
3 dB
Flashing Rate 5Hz 2Hz
3.468" H x 1.5"
W x 3.0 D
13.21
x 3.81 x 7.62 centimeters
RTS Systems, Burbank, CA 91506
/ FSCM: 60572 TDP3504 / Third Edition, Sept. 1989
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