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Pg. 2
LDF Instr.
1103BKJS
WIRING DIAGRAM: SYSTEM USED FOR SELECTIVE DOOR RELEASE
1
2
3
~
20
E
-
+
-
LDF-20C
+
-
PS-1225UL
LE-D
1
E
-
1
E
-
LE-D
1
2
3
~
20 L
1
E
-
LE-D
RY-PA
#1
RY-PA
#2
RY-PA
#3
BLK
BLK
BLK
YEL
YEL
YEL
External
Terminal Block
Normally Open
contacts are
maintained when the
door release button
is being pressed
while a station
button is selected.
Momentary Closure for Station #1
Aiphone Communication Systems
1700 130th Ave. N.E.
Bellevue, WA 98005
(425) 455-0510
FAX (425) 455-0071
OPERATION:
* POWER SWITCH MUST BE ON FOR SYSTEM TO BE OPERABLE.
1. When a station calls in, press the selector button corresponding to the lit LED.
2. To speak to the person at the remote station, press the TALK button (or pick up the handset). Release TALK
button to hear reply. Communication via the handset is VOX (voice actuated).
3. If the extra contacts are used as shown in the "camera call-up" diagram, activating a device that is to remain
on for the duration of the call, the station's relay will stay activated as long as the selector button is depressed.
4. If the extra contacts are used as shown in the "selective door release" diagram, press the "door release" button
while the selector button is depressed. This will activate the corresponding relay as long as the button is
being held, which will activate the door release mechanism.
5. If both functions are used on a channel, the device connected to the "constant closure" relay will be on for the
duration of the call. The "momentary closure" will only be active when the door release button is pressed.
6. When the conversation is completed, press the OFF button to the left of the station selector button.
Hang up handset.
SPECIFICATIONS
Power Source: 12V DC at master. Use PS-1225UL.
Commun. Output: 800mW at 20 ohms
Communication: Push-to-talk, release-to-listen (TALK button) or VOX handset at master.
Hands free at sub station.
Calling: Master to sub: By voice only
Sub to master: Call button on sub activates tone and LED at master.
LED remains lit for 20 seconds, and tone is momentary.
Wiring: 2 conductors homerun to sub station (single-master system only),
or loop multi-conductor with 2 common + 1 individual wire per sub station on wire run.
Separate 2 conductor from RY-PA to external device.
Shielded cable is recommended.
Use Aiphone #822202 (2 cond., 22AWG) or #822203 (3 cond., 22AWG) wire.
Wiring Distance: 650' with 22AWG; 1,600' with 18AWG.
For additional information about this system,
please refer to the LAF-C/CA instructions.
To convert RY-PA to N/C
(normally closed) contact:
Move one yellow wire
from "NO" to "NC".
(Internal modification,
soldering required.)
To activate
door release,
press button
located above
TALK button.
AC Power
for Door
Releases
Common for each closure
Momentary Closure for Station #2
Momentary Closure for Station #3
TOLL FREE TECHNICAL SUPPORT:
(800) 692-0200
TOLL FREE FAX LINE:
(800) 832-3765
E-MAIL: tech-serv@aiphone.com