Kingfisher KI 025 Series, Operating & Maintenance Manual

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KI 025 UM-5
12
Getting Started & Turning On
Powering Up
Check the compatibility of the supplied mains power unit with your
mains power supply. Check the setting of the 110/240 V selector, if
applicable. Connect the power unit to the mains, and plug the output
jack plug into the instrument power socket. If the battery is
completely fiat, you will have to wait a few minutes before the unit
becomes operable.
Connecting a Patch-cord & Turning On
To operate the system, you will need two instruments and a long
patch-cord. Clean the patch-cord connector, and plug it into the talk
set optical connector. For speakerphone operation, the two talk sets
need to be in different rooms, or separated by at least 10 metres, to
avoid acoustic interference. To turn the instrument on, turn the
volume knob, and set it mid-way. Upon turn-on you should hear a
tone emitted briefly which indicates normal operation.
Headset Operation
Set the rocker switch to Auto (on both instruments), plug in the
headset, and you should now be able to carry on a conversation.
Note that the 'XMIT' indicator shows that you are transmitting. If this
does not go on, the other person will not hear you.
Try also using the buzzer. Note that with the headset plugged in, the
built-in speaker is silent, however the buzzer will cause the speaker
to sound, alerting the user to put on his headset.
If the rocker switch is set in the mid position, you will be able to listen,
but not transmit. In this mode, push the 'Manual' function to transmit.
This feature can be useful in very noisy situations, to avoid spurious
transmission.
Speakerphone Function
To try testing the speakerphone function, unplug the headset. You
should now be able to operate the unit as a half duplex
speakerphone. Note that if you are talking, and the unit is
transmitting, then you will hear the other person until he/she 'cuts in'.
In the speakerphone mode, you can also use the rocker-switch to
select auto or manual operation.
‘Party Line’ Conversation
To use more than 2 talk sets in a communication link, you need to
use the second optical output connector connected to an additional
talk set.
The number of units that can operate is limited by the fact that each
individual unit reduces the available operating performance by about
7 dB. For this kind of use, headset operation is preferable, since the
half-duplex speakerphone is difficult to use when several people are
involved.
As long as the units are turned on, their buzzers will still operate to
call people to a conversation.