User's Manual

8. Installaon and use of oponal expansion
microphone(Oponal)
Use an expansion microphone for important and large meengs.
1. Connect one end of a 2.5-meter long 4P4C dedicated wire to the socket
of the expansion microphone and the other end to the speakerphone
EXT1.
2. Connect one end of a 2.5-meter long 4P4C dedicated wire to the socket
of the expansion microphone and the other end to the speakerphone
EXT2.
3. Due to the host uses a high single point microphone.To achieve the best
effect, the speaker should be facing the microphone directly in front of
the microphone. The direcon of the microphone is the same as that of
the nameplate.
4. The expansion microphone has mute switch and status indicator. The
indicator is green when it works normally, and red when mute.
Note:
In order to properly use and protect the expansion microphone, it is
necessary to plug and unplug the expansion microphone connecon and
install the expansion microphone without power.
Muteswitch,status
light
infrontof the
microphone
8