33
Specifications
General
Power Requirements:
Phantom Power: 24VDC nominal (12 to 30 VDC),
65 to 150mA
Local Power: 12 to 15VDC, 65 to 150mA
Dimensions:
1.75” (44.5mm) high x 8.25” (209.5mm) wide x
10.31” 261.9mm deep
Weight:
Approximately 2lb. (0.9kg)
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
Dynamic-mic Headset
Microphone:
50 to 200 Ohm, dynamic (balanced or unbalanced)
Headphones:
150 to 600 Ohm, monaural
Connector Type: XLR-4M
Pin 1 - Mic low
Pin 2 - Mic high
Pin 3 - Headphone low
Pin 4 - Headphone high
Panel Microphone or Electret-mic Headset
Microphone:
5k Ohm, electret (-57dB)
Headphones:
150 to 600 Ohm, monaural
Connector Type:
IKP12 (MCP-90 series, stereo plug connector)
Program Input
Input Level:
100mB maximum
Voltage Gain:
25 ±3dB
Output Level:
1.0 V
RMS nominal, 2.3 VRMS maximum
Input Impedance:
75k Ohm
Common Mode Rejection:
Greater than 50dB
Connector Type: DB9F
Pin 1 - Ground
Pin 2 - Program 1 input low
Pin 3 - Program 2 input low
Pin 4 - NC
Pin 5 - NC
Pin 6 - Program 1 input high
Pin 7 - Program 2 input high
Pin 8 - NC
Pin 9 - NC
Intercom Channels, Balanced Mode
(SW2 set to BAL position)
Output Level:
1 V
RMS nominal
Input Impedance:
300 Ohms
Bridging Impedance:
greater than 10,000 Ohms
Sidetone:
-40dB, 35dB adjustable range
Call Signaling:
Send: 20kHz ±300Hz, 0.5V
RMS ±10%
Receive: 20kHz ±800Hz, 100mV
RMS
Mic-Kill Frequency
Send: 24kHz ±100Hz, 0.5V
RMS ±10%
Detect: 24kHz ±800Hz, 100mV
RMS
Noise Contribution
less than -70dB
Common Mode Rejection Ratio:
greater than 50dB
Connector Type: one XLR-3M and XLR-3F pair,
wired in parallel, for each channel.
Pin 1 - Common
Pin 2 - Intercom audio low and +24VDC input
Pin 3 - Intercom audio high and +24VDC input
Intercom Channel, Unbalanced Mode
(SW2 set to UNBAL position)
Output Level:
1V
RMS ±10%
Input Impedance:
150 Ohms
Bridging Impedance:
greater than 10,000 Ohms
Call Signaling:
Send: 11 ±3VDC
Receive: 4VDC minimum
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