Telex Audiocom ES4000A, Инструкция пользователя

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Operation and Specifications
24
Specifications
Connector Pin Outs
12-15 VDC Jack
Connector Type: 2.0mm DC jack
Internal Pin: +12 to 15 VDC
External Ring: Common
EXP IN Jack
Connector Type: 1/8” (2.0m) stereo phone jack
Tip: Listen Input
Ring: Talk Output
Sleeve: Common
EXP OUT Jack
Connector Type: RCA Phono Jack
Tip: Talk output
Ring: Listen input
Sleeve: Common
SPEAKER Jacks
Connector Type: RCA Phono Jack
Tip: Speaker Output High
Sleeve: common
General
Power Requirements
Voltage
Phantom Power: 24VDC nominal (12 to 30VDC)
Local Power (with PS-L Wall-pack Power Supply or equivalent): 14
to 15 VDC
Current: 65mA, quiescent; 150mA maximum
Dimensions
1.75” (44.5 mm) high, 8.25” (209.6mm)wide, 10.0” (250mm) deep
Environmental Requirements
Storage:
-20°C to 80°C; 0% to 95% humidity, non-condensing
Operating:
-15°C to 60°C; 0% to 95% humidity, non-condensing
Intercom Channels, Balanced Mode (BAL/UNBAL switch set to BAL
position)
Output Level:
1V
RMS
nominal
Input Impedance
300 ohms
Bridging Impedance
greater than 10,000 ohms
Sidetone
-40dB, 35dB, adjustable range
Call Signalling
Send:
20kHz ± 100Hz, 0.47V
RMS
±2dB
Receive:
20kHz ± 800Hz, 100 mV
RMS
Mic Kill Frequency
Send
24kHz ± 100Hz, 0.5V
RMS
±2dB
Receive
24kHz ± 800Hz, 100 mV
RMS
Noise Contribution:
less than -70dB
Common Mode Rejection Ratio:
greater than 50dB
Intercom Channel, Unbalanced Mode (BAL/UNBAL switch set to UNBAL
position)
Output Level
1 V
RMS
± 10%
Input Impedance
150 ohms
Bridging Impedance
10,000 ohms ± 5%
Sidetone
-40dB, 35dB ± 10% adjustable range
Call Signalling:
Send:
11 ±2VDC
Receive:
4 VDC
Speaker Output
Level
1.0 V
RMS
±2dB (0dB nominal)
Impedance
1000 ohms nominal
Program Input
Voltage Gain Adjustment Range (program input to channel output, with
100 mV
RMS
input):
25 ±3dB (2.6 V
RMS
maximum, unit is factory-set to 1.0 V
RMS
)
Input Impedance:
Balance 75k ohm ±10%
Unbalanced 38k ohm ±10%
Frequency Response
EXP IN to/from Channel, EXP to/from EXP OUT, Channel to Speaker:
200Hz to 8kHz +1/-3dB
Total Harmonic Distortion:
Less than 0.5%