Telex Audiocom US-2000 Operating Instructions Manual Download Page 3 | Manualshive

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12-15 VDC

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TELEX COMMUNICATIONS, INC. MADE IN USA

US-2000

4

5

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13

16

15

14

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3

6

71

0

1

0

8

9

12

12

18

13

1

SPEAKERS

PROGRAM

INPUTS

2

LINE LEVEL

1 VRMS

P.A.

EXP

OUT

Mic Kill

Headset

PA

Panel Mic

Vox

Side Tone

All Talk

Listen

Listen

Call

Call

12

Talk

Talk

Volume

CHN 2

VOL

PGM 2

VOL

PGM 1

PUSH

CHN 1

11

11

PUSH

Figure 1. Front and Rear Panel Controls

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Summary of Contents for Audiocom US-2000

Page 1: ...T elex Operating Instructions US 2000 User Station Audiocom Intercom System US 2000 Mic Kill Headset PA Panel Mic Vo x Side To ne All Talk Listen Listen Call Call 1 2 Talk Talk Volume R...

Page 2: ...requirements FCC STATEMENT This equipment uses and can radiate radio frequency energy that may cause interference to radio communications if not installed in accordance with this manual The equipment...

Page 3: ...1 2 3 6 7 10 10 8 9 12 12 18 13 1 SPEAKERS PROGRAM INPUTS 2 LINE LEVEL 1 VRMS P A EXP OUT Mic Kill Headset PA Panel Mic Vox Side Tone All Talk Listen Listen Call Call 1 2 Talk Talk Volume CHN 2 VOL P...

Page 4: ...refer to Table 2 in this manual for the position of jumper J16 If the termination requirement of a headset microphone is unknown the recommended setting is unbalanced MICROPROCESSOR FUNCTIONS RESET Si...

Page 5: ...ing into the headset micro phone in a normal voice use a small flat blade screwdriver to adjust the VOX control to the desired voice activation level The Headset microphone key will turn from orange t...

Page 6: ...lic address system connected to the P A output jack on the back panel of the US 2000 The key will glow green 9 Mic Kill key This key controls three features Microphone Kill Feature This feature sends...

Page 7: ...eadset or Panel Mic selected the Talk keys operate in two ways Latched Mode Tap the key once to talk The key will glow green Tap the key again when finished with a conversation Momentary Mode Press an...

Page 8: ...a separate program input for each channel see Connector Pin Configurations for connector details The VOL PGM 1 control adjusts the program 1 level heard on intercom channel 1 The VOL PGM 2 control ad...

Page 9: ...y Use the other connector of each pair to run a cable to another user station CHANNEL TERMINATION Each channel of the US 2000 must be terminated to prevent audio oscillations When a channel is connect...

Page 10: ...underside of the US 2000 as shown in Figure 3 NOTE To activate a changed switch or jumper setting either perform a RESET or cycle the power on and off 9 SW1 SW2 J17 J19 J16 J8 R188 R187 R198 J21 J22...

Page 11: ...witch and jumper changes to allow the audio from each channel to go to separate powered speakers J22 must have pins 1 and 2 shorted J23 must have pins 1 and 2 shorted J24 must have pins 2 and 3 shorte...

Page 12: ...Off No program interrupt Off 5 Channel 1 Program Interrupt On Program interrupted during talk Off No program interrupt Off 6 Left Earpiece Source On Both channels Off Channel 2 only On 7 Right Earpie...

Page 13: ...horted Unbalanced Pins 2 3 shorted Balanced Pins 1 2 shorted J17 Clear Com Audiocom Mic Level Select Pins 1 2 shorted Clear Com Pins 2 3 shorted Audiocom Pins 2 3 shorted J19 Channel 1 20 kHz Call Rec...

Page 14: ...channel and adjust appropriate Return Cancellation to minimize signal volume on the speaker Limiter Adjustment R198 Adjusted at the factory for 1 Vrms audio output to the line If the microphone input...

Page 15: ...h Pin 8 NC Pin 9 NC P A Output Type 1 8 inch Stereo Phone Jack Unbalanced Wiring 000 Model Tip PA output high Ring Not used Sleeve Common Balanced Wiring 001 Model Tip PA output high Ring PA output lo...

Page 16: ...com audio low and 24 VDC input Pin 3 Intercom audio high and 24 VDC input Clear Com Mode Internal switch SW1 set to UNBAL position Pin 1 Common Pin 2 24 VDC input Pin 3 Intercom audio high Expansion O...

Page 17: ...unds 0 59 kg INTERFACE REQUIREMENTS Headset 50 to 200W dynamic microphone 150 to 600W headphones Panel Microphone 5 kW Electret microphone 57 dB Balanced Intercom Channel Output Level 1 Vrms nominal I...

Page 18: ...VDC minimum PROGRAM INPUT Voltage Gain Range 25 3 dB Output Level 1 0 Vrms nominal 2 3 Vrms maximum Input Impedance Balanced 75 kW Unbalanced 38 kW Common Mode Rejection Greater than 50 dB PA OUTPUT O...

Page 19: ...ng Mic to Headphone adjustable 45 dB 10 maximum into 150W Mic to PA 15 3 dB 235 mVrms 10 Frequency Response 200 Hz to 8 kHz 1 3dB Total Harmonic Distortion Less than 0 2 at CHN output VOX Range 75 to...

Page 20: ...rtment Telex Communications Inc West 1st Street Blue Earth Minnesota 56013 U S A Warranty Repairs If in warranty no charge will be made for the repairs Equipment being returned for warranty repair mus...

Page 21: ...ll Tap Mic Kill then tap Talk or Listen Mic Kill key will blink green and the Talk and Listen keys are green Mic kill all channels Tap Mic Kill then tap All Talk Mic Kill key will blink green and all...

Page 22: ...9300 7322 000 Rev D September 1996 TELEX COMMUNICATIONS INC 12000 Portland Ave S Burnsville MN 55337 U S A...

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