Aiphone LEF Series Instructions Manual page 8

WIRING DIAGRAMS - Important Wiring Rules (continued)
Door release relay wiring, one relay per door station
LEF-3C
· White lead is 12V DC when
key button is pressed.
Colored lead is ground when
channel is selected.
Brown lead is #1
1
Red lead is #2
2
Orange lead is #3
· Relay is activated when
White
channel is selected and door
Brown
release button is pressed.
Red
Orange
LEF-3C
1
PS12
E
- -
+ +
White
Brown
Red
Orange
Operation:
· To release the door, push the Station Selector button, then press "
· When the coil gets 12V DC, the contact changes state, momentarily. Use the relay to trigger a Request-To-Exit
input on any standard access control system, or close an open circuit (shown above).
External Signaling and CCTV relay wiring, one of either relay (or both) per door station
Power source
for bell strobe,
horn, etc
External device
Contact will close momentarily
to be triggered
when sub station is wired to channel #
(1, 2, or 3) calls in.
PS12
PS-1208UL / PS-1208BF / PS-1208S / PS-1208, PS-1225DM
LEF-3C
to white lead
to # channel's
Black wires are a coil. Provide
12V DC to trigger contact.
LE-D/LE-DA
Black
White to #
Black to LEF -
Yellow RY-AC/A
Red to LEF +
Black RY-PA Yellow
Contact
Normally Open (N/O) dry contact
110V AC, 1A ,
24V DC, 1A
1
E
-
AC Transformer
Yellow
RY-PA
" to release.
to PS12 +
to # channel's selective gnd.
LEF-3C channel's selective gnd. is
#1 selective gnd. is brown lead
#2 selective gnd. is red lead
#3 selective gnd. is orange lead
- 8 -
AC Transformer
Door strike
Door Strike
to CCTV
Black RY-PA Yellow
input
Contact will be closed
as long as channel #
is selected