Talk-Back Unit (Tk-20) - Toa EXES-6000 CP-66 Functions And Operating Instructions

8) Door Substation
< Making a call >
1. Pressing a button calls the specified master station.
2. Speak when a calling tone stops.
3. When a busy tone is heard, simply wait. You are put
through the master station as soon as its line is freed.
4. If there is no response even after a calling tone has
stopped, press the button again and again. The call-
ing tone is sounded each time the button is pressed.
5. Conversation or continuous calling tone is terminated
unless the button is pressed every 30 seconds.
9) Talk-back unit Model TK-20
< Making a call >
[When calling with the audio trigger function]
When the sound into the speaker exceeds the preset
volume, the specified master station is called.
[When calling with the call switch]
1. Pressing the talk-back station call switch calls the
specified master station.
2. Talk to the specified master station after a calling tone
is terminated.
3. Simply wait after a busy tone (intermittent single
tone) is heard.
As soon as the called station's line becomes free,
your call is automatically connected.
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Model HF-640S
HF-640S
— 10 —
Note.
1. Making a call from the door station to the master station
having its Privacy switch in ON transmits a brief calling
tone to the door station only twice, white transmitting a
continuous calling tone to the master station.
2. The No.200 programming (Master/Sub relationship) must
be performed in the exchange to call a specified master
station.
Note. Be sure to set the audio trigger selector switch on the
talk-back unit to ON.
<Response>
1. Talk to the specified master station after a calling tone is
terminated.
Note. The No.200 programming (Master/Sub relationship)
must be performed in the exchange to call a specified
master station.
PV Type