Konftel Konftel 300 User manual

PA Interface box
QUICK GUIDE
KONFTEL 300/300IP/300IPX
KONFTEL.COM

AUX port
PA interface box
To amplifier/speakersTo mixer/microphone2.5 m connection cable
The picture shows the bottom of Konftel 300IP
The PA interface box connects the conference phone with an existing PA system.
To match several types of situations and equipment, there are some settings available in
the Konftel 300/300IP/300IPx menu, see “SETTINGS” on the back page.
Parts included
• Interface box
• Connection cable, 2.5 metres
Output specification Input specification
Connector RCA Connector RCA
Impedance 600Ω Impedance 5kΩ
Output level 200mV RMS Input level 300mV RMS
Connecting the PA interface box
Always disconnect the power supply from the electrical outlet before disconnecting
or connecting equipment to the Konftel 300/300IP/300IPx.
Connect the PA interface box to the AUX port on Konftel 300/300IP/300IPx with
the included cable.
Connect the external amplifier to the RCA connector marked with a speaker.
Connect the microphone mixer to the RCA connector marked with a microphone.
DESCRIPTION AND INSTALLATION

SOFTWARE INSTALLATION
KONFTEL 300
Installing Konftel Upgrade Utility
You upgrade the Konftel 300 using a PC
and a free Windows software called Konftel
Upgrade Utility.
Download the Konftel Upgrade Utility
from www.konftel.com/upgrades.
Install the downloaded software on
your PC.
Upgrading the software in the
Konftel 300
Start the Konftel Upgrade Utility
software on your computer from the
Start menu.
Follow the instructions in the upgrade
guide to set Konftel 300 model in
upgrade mode and install the latest
software directly via Internet. (It is also
possible to download the software and
install it from your computer’s hard
drive.)
Changing the auxiliary port setting
in the Konftel 300
Press MENU and select SETTINGS >
AUX PORT.
Select the PA option to activate fea-
tures for external microphone mixer
and PA system.
Press OK to confirm.
Do not select the PA option unless a
PA system is connected. This option
turns o the internal microphone and
speakers.
SOFTWARE INSTALLATION
KONFTEL 300IP/300IPX
Installing Konftel Upgrade Utility
You upgrade the Konftel 300 using a PC
and a free Windows software called Konftel
Upgrade Utility.
Download the Konftel Upgrade Utility
from www.konftel.com/upgrades.

Install the downloaded software on
your PC.
Upgrading the software in the
Konftel 300IP/300IPx
Check the conference phone’s
IP ADDRESS. (MENU > STATUS >
NETWORK).
Log into the web server in Konftel
300IP by entering the phone’s IP
address in your computer’s web
browser.
Select Admin as Profile and enter your
PIN.
Select Settings > Provisioning.
Click on Check Now.
Select the latest version and click on
Upgrade.
Changing the auxiliary port setting
in the Konftel 300IP/300IPx
Select Settings > Basic.
Select PA under the heading Auxiliary
port to activate the functions for
external microphones and speaker
system.
Click on Save.
Do not select the PA option unless a
PA system is connected. This option
turns o the internal microphone and
speakers.

Activation and deactivation of
internal microphone and internal
speakers
The internal microphone and speakers are
turned o by default when the PA box is
connected.
Press MENU and select SETTINGS >
BASIC > PA (Konftel 300: SETTINGS
> PA ).
Select INTERNAL MIC or INTERNAL
SPKR and press OK to switch
between ON (shaded box) and OFF.
To ensure maximum audio quality, do
not use internal and external micro-
phones/speakers connected via the
PA interface box at the same time.
Adjusting microphone volume from
PA system
PA monitor can be used to adjust the
microphone level from an external
microphone mixer.
Make a call.
Press MENU and select PA >
MONITOR.
Adjust the microphone level from the
mixer so that this level value on the
display screen is around 10–12 when
speaking in a normal tone of voice.
SETTINGS
Rev 1A 2021-08-11
KONFTEL.COM
Adjusting PA calibration manually
If needed it is possible to calibrate the full
duplex performance. The calibration value
can be set to AUTO or be adjusted manually
in steps from 0 to 5 where 0 is the highest
grade of duplex.
• Increase the calibration if the remote
party experiences disturbing echoes.
• Decrease the calibration if the
remote party experiences low duplex,
i.e. your voice is muted or clipped
when the other party is speaking.
The position of the PA system’s
microphones and speakers and the
amplifier’s settings may aect full
duplex performance.
Make a call.
Press MENU and select PA >
CALIBRATION.
AUTO is the default setting and is
recommended in most cases. The
figure shown in brackets is the mea-
sured calibration value.
Select dierent levels and compare
the audio quality to achieve your
preferred setting.
NB. You must ask the person you are
calling to assess the eect of the
adjustments you make.