– 15 –
Mulit-master system
Problem Solution
Call-in LEDs only light when a sub station calls. A responding master
answers handsfree, and therefore does not have to select a station number.
Make sure all masters are in the OFF (standby) position. The station whose
LED above the OFF button is lit is the one that’s on. Check
R
wire for a
short to ground. Take R wire off of terminal. If Occupied light remains lit, the
unit is damaged and needs repair.
Check E &
–
wires from sub for proper connection to master. See #2
solution above.
Make sure station number wires are not shorted together. Remove all
jumpers between E &
–
(in multi-master system). Test master station by
taking wires off of affected station #
’s, then touch a jumper wire between a
station # and
–
. If multiple call-in LEDs light up, the unit has sustained
power surge damage and must be sent in for repair.
RY-PA relay is required for each door to be released. Connect black wires to
L
&
–
. For selective door release, connect RY-PA between K#
(matching station # that door is on) and
L
, which provides 12V DC when
“ ” button is pressed.
All Call requires the BG-10C Adaptor with power supply.
BG-10C must be installed. Wire from door station must connect to BG-10C,
1
of door to DA / DB / DC of BG-10C.
–
must be connected from LEF
master to BG-10C.
Door station should be wired directly to BG-10C or first master. Make sure
the A/B switch on the back of the LEF master is in the “A” position. Make
sure
R
line is connected between LEF master and BG-10C.
Check connection from P1 , P2 , P3 terminals from LEF-10S to BG-10C.
P1 should be 10V DC or higher when All Call button is engaged. P2 and
P3 carry the voice signal from the initiating master to the BG-10C. Be sure
to press TALK while making an All Call announcement, and press All Call
button when finished.
Adjust volume levels on front of BG-10C (located behind metal cover plate).
Make sure jumpers between E &
–
are removed. When using the BG-10C
for All Call in a system with sub stations, a non-polarized capacitor (NP-25V)
must be installed in series on each station # line that a sub station is on
between the BG-10C and LEF-10S. (See diagram on pg. 12)
Intercom stations should not be mounted back-to-back on the same wall. If
they are, they must be installed at least 60cm (2’) apart with insulation
isolating them. Adjust voice volume control downward to eliminate feedback.
Adjust “Voice Vol.” upward. Make sure the
1 and
–
terminals from sub to
master are not reversed.
System wiring must be run at least 50cm (20”) away from AC wiring,
fluorescent lights, or dimmer switches. Wires can cross AC at 90 degrees. If
shielded wire was used, tie all of the shields together and ground one end to
an earth ground. If noise persists, isolate source of the noise and separate
the intercom from the source.
5. Call-in LED lights don’t light up
when calling master-to-master.
6. In-use LED is always on.
7. Call tone and call-in LED from subs
work fine, but no communication, or
vice versa.
8. When sub calls in, multiple call-in
LED lights come on.
9. Door release doesn’t work.
10. All Call from LEF-10S doesn’t work.
11. Chime from door station doesn’t
work.
12. Chime from door works, but
electronic call tone in LEF masters
also is heard.
13. All Call doesn’t work, but BG-10C is
included in system.
14. All Call pretone and voice volume
are too loud or too soft.
15. When an All Call is initiated, all of
the LEDs corresponding to sub
station channels light up.
16. Feedback is heard between
intercom stations in adjacent rooms.
17. Communication to another station is
very weak.
18. LEF system has AC hum when
listening to another station from a
master station.
– 16 –
99 SPECIFICATIONS (LEF)
88 TECHNICAL PRECAUTIONS
IMPORTANT:
• Aiphone is not responsible for improper installations of its product which result in interference generated by dimmer switches,
fluorescent lighting fixtures or other similar electrical devices. Any such installation must be corrected at the source by the
installing party. Aiphone also recommends that when installing any of its communication products that the intercom wiring be
run at least 50cm (20”) away from any AC wiring.
• Cleaning: Clean the units with a soft cloth and gentle cleaner. Do not spray cleaner directly on unit. Do not use an abrasive
cleaner or cloth.
Power source: 12V DC, 300mA per station.
Use one PS-1225UL, PS-1225S, PS-1225, or PS-1215DIN power supply per system.
Communication: Push-to-talk, release-to-listen at master station.
★ Master-to-master calling does not turn on station LED at receiving master.
Talk channel: 1 channel (talkpath). Occupied LED is lit when the system is in use.
Output: 800mW at 20Ω (reception). 500mW at 20Ω (transmission).
Wiring: • Single-master system: 2 wires homerun.
• Between LEF masters: Min. 4 common
(
*
)
+ 1 wire per number of stations in the system, looped
(See pg. 3)
(
*
)
9 common wires are required if All Call and Door Release are included, plus total number
of stations in the system (plus add'l wire per door if selective door release is included).
• Intermixed system: 3 wires per sub, homerun to the nearest master, or 2 common + 1
individual wire per sub, looped.
Door release button contact: 30V DC, 0.1A (resistance load).
(" ")
Select switch contact: 12V DC, 30mA (for external device control).
Wiring distance: 0.65mm" 0.8mm" 1.0mm" 22AWG 20AWG 18AWG
200m 300m 480m 650' 1,000’ 1,600'
Dimensions & weight:
LEF-3: 180 H x 143 W x 55 D (mm). 7-1/16" H x 5-5/8" W x 2-3/16" D.
420g, 0.93 lbs. approx.
LEF-5, 10, 10S: 206 H x 190 W x 55 D (mm). 8-1/8" H x 7-1/2" W x 2-3/16" D.
550g, 1.21 lbs. (LEF-5). 650g, 1.43 lbs. (LEF-10, 10S).
http://www.aiphone.net/
WARRANTY
Aiphone warrants its products to be free from defects of material and workmanship under normal use and service for a
period of one year after delivery to the ultimate user and will repair free of charge or replace at no charge, should it
become defective upon which examination shall disclose to be defective and under warranty. Aiphone reserves unto
itself the sole right to make the final decision whether there is a defect in materials and/or workmanship; and whether
or not the product is within the warranty. This warranty shall not apply to any Aiphone product which has been subject
to misuse, neglect, accident, power surge, or to use in violation of instructions furnished, nor extended to units which
have been repaired or altered outside of the factory. This warranty does not cover batteries or damage caused by
batteries used in connection with the unit. This warranty covers bench repairs only, and any repairs must be made at
the shop or place designated in writing by Aiphone. This warranty is limited to the standard specifications listed in the
operation manual. This warranty does not cover any supplementary function of a third party product that is added by
users or suppliers. Please note that any damage or other issues caused by failure of function or interconnection with
Aiphone products is also not covered by this warranty. Aiphone will not be responsible for any costs incurred involving
on site service calls. Aiphone will not provide compensation for any loss or damage incurred by the breakdown or
malfunction of its products during use, or for any consequent inconvenience or losses that may result.
AIPHONE CO., LTD., NAGOYA, JAPAN
Issue Date: Nov. 2015
83492 N P1115 AZ 58293
The object area of is the EU.
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