– 13 –
66 OPERATIONS on LEF
★ LEF is a single talkpath system. While the Occupied LED is lit, do not attempt to select
a station or initiate an All Call.
★ If called by a master and sub at the same time, reply to the master’s call handsfree first.
When the Occupied LED goes off, select the sub station that called.
Calling a master or sub:
1. Depress a station selector button 1 ~ 10.
2. Push the TALK button to speak, and release to listen to the reply.
3. If you wish to ring a tone as an attention-getter, press the PRIV (privacy) and TALK buttons together. Release the PRIV
button and hold the TALK button down to speak to the called station.
4. To conclude, depress OFF button.
Receiving a call from a sub station:
1. Sub station calls in with tone and call-in LED, which stays lit for approx. 20 seconds.
2. Depress the lit station selector button.
3. Push the TALK button to speak, and release to listen.
4. Depress OFF button when finished.
Receiving a call from another master:
1. When a master calls to another master, no station LEDs light up, and the responding master answers back handsfree.
2. In-use LED will be on while the initiating master has a station selected.
3. Do not press any buttons on the master when responding to another master’s call. If the privacy feature is engaged,
push TALK button momentarily to release before responding. To set the master in privacy mode after communication,
press PRIV button again.
Door answering (from a master station only):
1. Audio door station calls in with an electronic call tone & LED, which stays lit for approx. 20 seconds.
NOTE: A 4-stroke chime tone can be heard through the inside stations when a door station calls in if the BG-10C is
included in the system. (Up to 3 door stations can activate chime sound.)
2. Depress the lit selector button, then press TALK to speak, release to listen.
Door release with “
” button:
LEF-5, LEF-10, and LEF-10S provide selective door release to multiple doors (one RY-PA for each door). When
communication is established to a door station, press the “ ” button to release the corresponding door strike.
All Call with “ALL CALL” button:
On LEF-10S station only, the all call feature allows an announcement to be made to all the stations in the system.
IMPORTANT: The BG-10C is required to make this feature operable.
1. Press ALL CALL button.
2. Press TALK to make an announcement.
3. Press ALL CALL button again to release.
Speaker
Call-in LED
1~10
Station-selector
button 1~10
Voice volume
control
In-use LED
(occupied)
All Call transmit button
& LED (LEF-10S only)
Door release button
Privacy button
& LED
Talk (listen)
switch
Microphone
ON LED
OFF switch
LEF-5, 10, 10S
Speaker
Microphone
In-use LED
(occupied)
Privacy button
& LED
Talk (listen)
button
Call-in LED 1~3
Station-selector
button 1~3
OFF button (w/ON LED)
Voice volume
control
LEF-3
1
2 3
OFF OCCUPIED
PRIV
TALK
CALL
1 2 3 4 5 6 7 8 9 10
OFF
OCUPIED
VOICE VOL
PRIVALL CALL
TALK
CALL
– 14 –
LEF-10S only
Operation Plate for LEF-3 Operation Plate for LEF-5, 10, 10S
77 LEF system Troubleshooting Guide
Single-master
system
Mulit-master
system
Problem Solution
BG-10C All Call, Chime, and Music Adaptor:
Music is selectively distributed to all LEF station speakers, controlled by switch settings in BG-10C.
When any station initiates a call, the music mutes automatically.
When door station calls in, chime tone is transmitted to selected inside stations, controlled by switch settings.
Privacy (PRIV) feature:
When PRIV button is depressed, the calling master can call into a station in “privacy” mode, but the “listen” mode is cut off.
To release from PRIV, press TALK momentarily.
LE sub stations:
To call a master station:
1. Simply press the CALL button, which rings an electronic tone (for as long as button is held). The corresponding LED on
the called master station(s) will be lit for approximately 20 seconds.
2. When master replies, speak handsfree.
When called by a sub station while talking to another station:
The station’s call-in LED will light for approx. 20 sec., but call tone is muted. (NOTE: If A/B switch is set to "B" position, the
call tone will be heard at a muted level, even if the receiving station has another station selected.) Depress OFF button to
disconnect from original call, the depress the selector button with lit call-in LED to answer the next call.
1. No call tone or call-in LED when sub
calls master (2-wire connection).
2. Call tone works, but no
communication, or communication
works, but no call tone.
3. Master stations cannot call each
other.
4. Call tone is too loud or too soft.
Make sure jumper is installed between E &
–
at the subs and the master
station.
Same as above; E &
–
jumper must be in place. If 3 wires are used, 1 &
– are for call-in, and 1 & E are for communication. Check continuity and
connection of wires.
The C terminal of the master means “CALL”, and allows master-to-master
communication. Make sure the C terminal of each master is connected to
a designated # terminal on all other masters. (example: C at master 1
connects to the
1
terminal of all other masters.)
Adjust call tone volume with slide switch located under operation plate.
(Remove plate and use small screwdriver to adjust.)
OFF
OCCUPIED
PRIV.
VOICE VOL.
TALK
CALL
AIPHONE
LEF-10S
ALL CALL
10987654321
Fill in
directory
Station-
selector
(5 or 10)
Sub/door call-in ON LED
PrivacyDoor releaseVoice vol.
All call
In-use
OFF
(standby)
OFF OCCUPIED
PRIV.
VOL.VOICE
TALK
CALL
AIPHONE
LEF-3
1 2 3
Fill in
directory
Station-
selector (3)
Sub/door call-in ON LED
PrivacyOFF (standby)Voice vol.
In-use
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