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SPECIFICATIONS:
Power Source: 12V DC at master. Use one PS-1225UL per system,
or one PS-1225UL per BG-10C when All Call is included.
Communication Output: 800mW at 20 ohms (receive); 500mW at 20 ohms (transmit)
Communication: Push-to-talk, release-to-listen (TALK button), or VOX handset at master.
Hands free at sub station.
Calling: Master to sub or other master: By voice (TALK) or tone (TALK & ALL CALL simult.)
Sub to master: Call button on sub activates tone and LED at master,
remaining lit for approximately 20 seconds.
Wiring: 2 conductors homerun to sub station (1-Master system only), 3-conductor, or loop multi-
conductor with 2 common + 1 individual wire per sub station on wire run.
Shielded cable is recommended.
Single Master Systems without BG-10C:
Aiphone #822202, 2 cond. 22AWG; #821802, 2 cond. 18AWG
Multi-Master System (Can also be used in a single master system or systems with BG-10C):
#822203, 3 cond. 22AWG; #822206, 6 cond. 22AWG.
LAF-C to ea. BG-10C: Aiphone #822220, 20 cond. 22AWG.
Wiring Distance: 650' with 22AWG; 1,600' with 18AWG.
Dimensions: LAF-20C: 10-1/4" x 13-1/2" x 5-1/2". LAF-20CA: 10-1/4" x 17-3/4" x 5-1/2"
(H x W x D) LAF-40C: 10-1/4" x 19-1/2" x 5-1/2". LAF-40CA: 10-1/4" x 23-1/2" x 5-1/2"
LA-20AS: 10-1/4" x 7" x 5-1/2". LA-40AS: 10-1/4" x 12-7/8" x 5-1/2".
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OPERATIONS & SPECIFICATIONS
OPERATIONS:
* POWER SWITCH MUST BE ON FOR THE SYSTEM TO BE OPERATIONAL.
Receiving a call from a sub station:
1. Sub station calls in with mono-electronic tone, heard as long as call button at sub is depressed.
2. LED light corresponding to calling station will light at master, staying on approximately 20 seconds.
3. Depress station button with lit LED.
4. Press TALK button to speak, and release to listen. With handset model (LAF-CA), speak to sub station
privately with voice actuated (VOX) handset. TALK button is also functional on LAF-CA models.
5. Press OFF button to the left of the station selector button when the call is concluded.
Calling a sub or master station:
1. Depress station number of the location you wish to call.
2. Press TALK to speak, and release to hear reply, or use handset.
3. If you wish to send a pre-announce tone to the called station, press the TALK and ALL CALL buttons
simultaneously. A mono-electronic tone will be heard at the called station.
4. Press OFF button to the left of the station selector button when the call is concluded.
Receiving a call from another master station:
1. When one master calls another master, no station LEDs light up, and the responding master answers
back hands free. The calling master uses the TALK button to speak.
2. The calling master can use the handset, but the responding master must speak hands free.
3. The "occupied lamp" will be on while the initiating master has a station selected.
4. The responding master should not press any buttons to respond to another master's call.
Initiating an ALL CALL from the master station, and features of the BG-10C:
1. Press and hold the black ALL CALL button, then make an announcement.
2. To conclude, simply release the button.
3. All Call is a one way outgoing announcement only. If a station wishes to respond, they must press their
call button, and the master station can then answer the call as described above.
4. If background music is included, the music will be heard on the system while it is not occupied. When any
master station selects a station to place or answer a call, the music will be muted throughout the entire
system.
5. If a door station is wired to the BG-10C to produce a chime, a 4-stroke chime will be heard through the
stations selected to receive the chime (switches under plate on BG-10C). A call from a door station can
only be answered by a master station.
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