Konftel Konftel 300 User manual

Connecting a
PA Interface box
KONFTEL 300/ 300IP
ENGLISH
Activation and deactivation of internal microphone and internal speakers
The internal microphone and speakers are turned off 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 microphones/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.
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 amplier’s settings may
affect full duplex performance.
Make a call.
Press MENU and select PA > CALIBRATION.
AUTO is the default setting and is recommended in most cases. The gure shown in brackets
is the measured calibration value.
Select different levels and compare the audio quality to achieve your preferred setting.
NB. You must ask the person you are calling to assess the effect of the adjustments you make.
SETTINGS
www.konftel.com
Head ofce in Sweden: Konftel AB, Box 268, SE -901 06 Umeå, Sweden
Phone: [phone], Fax: [phone], E-mail: [email protected]
110061-61-001 rev 2d

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 menu, see “SETTINGS” on the back page.
Parts included
• Interface box
• Connection cable, 2.5 metres
Output specication
Connector RCA
Impedance 600Ω
Output level 200mV RMS
Connecting the PA interface box
Always disconnect the power supply from the electrical outlet before disconnecting or con-
necting equipment to the Konftel 300/300IP.
Connect the PA interface box to the AUX port on Konftel 300/300IP with the included cable.
Connect the external amplier 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 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 features for external microphone mixer and PA system.
Press OK to conrm.
Do not select the PA option unless a PA system is connected. This option turns off the
internal microphone and speakers.
SOFTWARE INSTALLATION – KONFTEL 300IP
Upgrading the software in the Konftel 300IP
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 com-
puter’s web browser.
Select Admin as Prole 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
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 off
the internal microphone and speakers.
Input specication
Connector RCA
Impedance 5kΩ
Input level 300mV RMS
AUX port
PA interface box
To amplier/speakersTo mixer/microphone2.5 m connection cable
The picture shows the bottom of Konftel 300IP
Microphones
Loudspeakers
PA interface box Amplifier
Mixer
Optional connection if
the sound from the local
microphones shall be
mixed to the speakers
AUX