Installation
ITR2000A Tone Remote Desk Set
04/15 18
Microphone Sensitivity
After connections have been made, the ITR2000A must be configured for transmit and receive audio
levels. These adjustments are made using the front panel buttons. The microphone sensitivity
adjustment is used to compensate for different user voice levels and varied acoustical conditions. Refer
to the following instructions to adjust the different microphones.
Internal Microphone
1.
Place the handset in the cradle.
2.
While holding down
IC
button, momentarily press
VOLUME
Up button.
A single beep is heard to indicate that the microphone sensitivity level can be adjusted.
No audible beep indicates the microphone sensitivity adjustment function is already enabled.
3.
Press and hold
TRANSMIT
, speak into the internal microphone, and press
VOLUME
Up or
VOLUME
Down to increase sensitivity or decrease microphone sensitivity.
N
OTE
:
The display shows the relative TX level as a number between 1 and 5. To confirm the
absolute level, measure the transmit level across the TX line pair using an ac millivolt meter or dBm
meter.
4.
After the adjustment has been made, press and hold the
IC
button, and momentarily press the
VOLUME
Down button.
A single beep is heard to indicate the microphone adjustment has been saved and the adjustment
function had been closed. No audible beep indicates the microphone adjustment function has already
been closed.
Handset Microphone
1.
With the handset off-hook, hold down the
IC
button and momentarily press the
VOLUME
Up button.
A single beep is heard in the earpiece to indicate that the microphone sensitivity level can be
adjusted. No audible beep indicates the microphone sensitivity adjustment is already enabled.
2.
To adjust the sensitivity level, press the handset PTT button, speak into the handset microphone, and
press
VOLUME
Up or
VOLUME
Down to increase or decrease the sensitivity level.
3.
After adjustment has been made, hold down the
IC
button and momentarily press the
VOLUME
Down
button.
A single beep is heard to indicate the microphone setting has been saved, and the adjustment function
has been closed. No audible beep indicates the microphone adjustment has already been closed.
Accessory Microphone
1.
With the handset on-hook, hold down the IC button and momentarily press the
VOLUME
Up button.
A single beep is heard to indicate that the microphone sensitivity level can be adjusted. No audible
beep indicates the microphone sensitivity adjustment function is already enabled.
2.
To adjust the sensitivity level, press the accessory microphone PTT/
T
RANSMIT
button, speak into the
accessory microphone, and press the
VOLUME
Up or
VOLUME
Down to increase or decrease the
sensitivity level.
3.
After the adjustment has been made, hold down the
IC
button and momentarily press the
VOLUME
Down button. A single beep is heard to indicate the microphone setting has been saved, and the
adjustment function has been closed. No audible beep indicates the microphone adjustment function
has already been closed.
Summary of Contents for ITR2000A
Page 28: ...CARD Suite Software ITR2000A Tone Remote Desk Set 04 15 24...
Page 31: ...27 04 15 Circuit Boards...
Page 32: ...Circuit Boards ITR2000A Tone Remote Desk Set 28...
Page 33: ...ITR2000A Tone Remote Desk Set Circuit Boards 29...
Page 34: ...Circuit Boards ITR2000A Tone Remote Desk Set 30...
Page 35: ...31 04 15 Schematics...
Page 36: ...Schematics ITR2000A Tone Remote Desk Set 32 Line Interface Schematic Sheet 1...
Page 37: ...ITR2000A Tone Remote Desk Set Schematics 33 User Audio I O Schematic Diagram Sheet 2...
Page 39: ...ITR2000A Tone Remote Desk Set Schematics 35 DSP Block Schematic Diagram Sheet 4...
Page 40: ...Schematics ITR2000A Tone Remote Desk Set 36 Tone Keypanel Schematic Diagram Sheet 5...
Page 41: ...ITR2000A Tone Remote Desk Set Schematics 37 Power Supply Schematic Diagram Sheet 6...
Page 42: ...Schematics ITR2000A Tone Remote Desk Set 38 Signaling Section Schematic Diagram Sheet 7...
