Specifications - Telex Audiocom US-2002 User Instructions

Operation

Specifications

General
Power Requirements:
Phantom Power: 24VDC nominal (12 to 30 VDC), 65 to 150 mA
Local Power: 12 to 15 VDC, 65 to 150 mA
Dimensions:
1.75" (44.5 mm) high x 8.25" (209.5 mm) wide x 10.31" 261.9 mm deep
Weight:
Approximately 2lb. (0.9 kg)
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 VRMS 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
30
Intercom Channels, Balanced Mode (SW2 set to BAL position)
Output Level:
1 VRMS nominal
Input Impedance:
300 ohms
Bridging Impedance:
greater than 10,000 ohms
Sidetone:
-40dB, 35dB adjustable range
Call Signaling:
Send: 20kHz ±300Hz, 0.5VRMS ±10%
Receive: 20kHz ±800Hz, 100mVRMS
Mic-Kill Frequency
Send: 24kHz ±100Hz, 0.5VRMS ±10%
Detect: 24kHz ±800Hz, 100mVRMS
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
1VRMS ±10%
Input Impedance
150ohms
Bridging Impedance
greater than 10,000ohms
Call Signaling
Send: 11 ±3VDC
Receive: 4VDC minimum
Connector Type: one XLR-3M and XLR-3F pair, wired in parallel, for each
channel.
Pin 1 - Common
Pin 2 - +24VDC input
Pin 3 - Intercom audio high
PA Output
Output Level
235mVRMS
Connector Type: 1/8-inch Stereo Phone Jack
Tip - PA output high
Ring - Not used
Sleeve - Common
Speaker Output
Output Level
0dB nominal (1.0 VRMS)
Output Impedance
1000ohms nominal