Installation
IPE2500A and IPE2500A-MLS Paging Encoder/Desktop Controller
03/12 44
Microphone Sensitivity Adjustments
After connections have been made, the IPE2500A 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 IPE2500A
Page 69: ...63 03 12 Circuit Boards...
Page 70: ...Circuit Boards IPE2500A and IPE2500A MLS Paging Encoder Desktop Controller 64...
Page 71: ...IPE2500A and IPE2500A MLS Paging Encoder Desktop Controller Circuit Boards 65...
Page 73: ...67 03 12 Schematics...
Page 80: ...Schematics IPE2500A and IPE2500A MLS Paging Encoder Desktop Controller 74 Schematic Sheet 7...
Page 86: ...Schematics IPE2500A and IPE2500A MLS Paging Encoder Desktop Controller 80...
