INTERCOM STATION
(Users' Manual)
HF-640S
GENERAL DESCRIPTION
The HF-640S is an outdoor use weather resistant, flush wall mounting
type intercom station. The YC-150 (flush mounting type back box)
and the YS-13 (wall mounting type back box) are available as optional
items for easy installation.
Speaker
Front Panel
Microphone
Front Panel Mounting Screws
Name Plate (Microphone and Speaker
Volume Controls are located behind the
name plate)
In-use Lamp
Calling-button
ACCESSORIES:
Name plate
Wood screws
Machine screws
INSTALLATION
(1) Mounting into the YC-150 Back Box:
1 Install
the
box
into a wall vertically.
2 Unscrew the front panel mounting screw and remove the
front panel from the station. Then, mount the station into
the box with the four machine screws.
3 Adjust the microphone and speaker volume controls.
(Refer to "Adjustments")
4 Fill in the name plate and stick it on the station.
5 Attach the
front panel with the front panel mounting screws.
Machine Screws
Front Panel
Mounting Screws
Station
Front Panel
(2) Mounting in the YS-13 Box:
Install the box (YS-13) vertically and mount the station in the same
manner as mentioned in (1).
Note
In this case, avoid installing the box in a place exposed to direct
rain.
(3) Mounting on Wall Board:
1 Make a vertical rectangular cutout of 74mm(W)x138 mm(H).
2 Unscrew the
front panel fixing screws and remove the panel
from the station. Then, mount the station to the wall with
the four wood screws.
3 Adjust
the
microphone
and
speaker volume controls.
(Refer to "Adjustment")
4 Fill in
the
name plate and stick it on the station.
5 Attach
the panel with the front panel mounting screws.
Wood Screws
Front Panel Fixing Screws
Fixing Cutout
Station
Front Panel
TOA Corporation
Printed in Japan
CAUTION
Do not locate the station where water or other liquids may come in direct contact with
the station.
CONNECTIONS
COMPONENTS
(1) For Call Bell, Chime, etc.:
Install wiring as follows for a call bell, chime, or other equipment to
be activated by the "make" contact of the station.
1 Connect
the
terminal block and the terminals of the station
per the pictorial.
2 Connect bell, chime, etc., to terminals 5 and 6.
3 Remove
the
screw marked "SW".
Terminal Block
There is no polarity between
pair 1 and 2.
For a bell, chime, or etc.
Remove the screw
(Notes)
•
Conversation can be started only when the station (HF-
640S) has been called from another station by the person
hearing the call buzzer or bell.
•
Conversation can not be cancelled by the station (HF-640S).
•
Avoid connecting any power source, bell, chime or other
equipment which draw more than 24V DC, 1A, to termi-
nals 5 and 6.
(2) For Calling up a Designated Station:
Install wiring as follows for calling up a pre-programed station:
(Note) Conversation
cannot be cancelled by the station (HF-640S).
Terminal block
Do not remove the screw
ADJUSTMENTS
Adjust the microphone and speaker volume controls of the station
for suitable level depending on the station location.
Adjust the volume controls by removing
name plate before fixing the front panel.
After adjusting the volume controls,
stick the name card on the station.
Microphone Volume Control
In-use Lamp
Speaker Volume Control
Remove the Name Plate and
adjust the volume controls.
Noise Level
(Phone)
Volume
Setting
Microphone Sensitivity
Conversations may sometimes be inter-
rupted by the high surrounding noise
level at the station. In order to eliminate
such trouble, adjust the microphone
sensitivity VOLUME (see
) on the
station according to the surrounding
noise level. Please refer to the table 1
for adjustment.
Speaker Volume
When the station is installed in highly reverberant places such as
rooms with low ceilings, concrete walls or narrow corridors, sound
produced by the loud speaker may be picked up on the microphone,
causing a temporary interruption of conversation.
In such cases, turn down the speaker volume by using the trimmer
(see )
on
the
station. If the volume of the speaker is too low, adjust
the microphone sensitivity (control) VOLUME and speaker volume
control together.
Note: Use a small slotted screw driver for adjustment. After adjust-
ment, make a test.
CAUTION:
•
Use a small Phillips screwdriver for the necessary adjustments.
•
After adjusting the volume, do not fail to conduct a conversation
test.
1
4
4
[Table 1]
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