Specifications - Telex Audiocom WM1000 User Instructions

Specifications

General
Power Requirements
Phantom Power: 24VDC nominal (30VDC),
150mA
Local Power: 15VDC, 150mA
Dimensions:
Mounts in a standard 2-gang electrical box
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:
150 to 500 Ohm, dynamic (balanced or
unbalanced)
Headphones
150 to 600 Ohm, monaural
Connector Type: XLR-4M
Pin 1 - Microphone Low
Pin 2 - Microphone High
Pin 3 - Headphone High
Pin 4 - Headphone Low
Intercom Channels Balanced Mode (SW1 set to BAL
position)
Output Level:
1Vrms nominal
Input Impedance:
300 Ohms
Bridging Impedance:
greater than 5,000 Ohms
Sidetone:
35dB adjustable range
Call Signaling:
Send: 20kHz ±100Hz, 0.5Vrms ±10%
Receive: 20kHz ±800Hz, 100mVrms ±10%
Mic-Kill Detect Frequency:
24kHz ±800Hz, 100mVrms
Noise Contribution:
less than -70dB
Common Mode Rejection Ratio:
greater than 50dB
Connector Type: Six-position terminal block with
screw-wire clamps
Pin 1 Audio and DC Common
Pin 2 Local power (15VDC, 150mA)
Pin 3 Intercom channel 1 audio low +24VDC
phantom power
Pin 4 Intercom channel 1 audio high +24VDC
phantom power
Pin 5 Intercom channel 2 audio low +24VDC
phantom power
Pin 6 Intercom channel 2 audio high +24VDC
phantom power
Intercom Channel, Unbalanced Mode (SW-1 set to
UNBAL position)
Output Level
0.707VRMS ±10%
Input Impedance
200 Ohms
Bridging Impedance
greater than 5,000 Ohms
Sidetone
-40dB, 35dB adjustable range
Call Signaling
Send 11 ±3VDC
Receive 4VDC minimum
Connector Type - Six-position terminal block with
screw-in wire clamps
Pin 1 Common
Pin 2 Local power (15VDC, 150mA)
Pin 3 Channel 1 24–30VDC input
Pin 4 Channel 1 intercom audio high and DC
call
Pin 5 Channel 2 24–30VDC input
Pin 6 Channel 2 intercom audio high and DC
call
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