Aiphone JOS-1A, Installation & Operation Manual, Page: 8 / 64

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8
WIRING
1 E
A1 A2
2
NP
2
NP
2
P
2
NP
PS-1820
PS-1820S
PS-1820UL
PS-1820D
PS18
PS18
IER-2
JO-DV JO-DVF
JO-1MD
: Power supply
IN 230V~ 50/60Hz
L
N
L N
- ++
-
+
-
230V AC
50/60 Hz 18V DC 2A
18V DC 2A
JO-DA
+ -
100V - 240V
50/60 Hz
Insert wires securely into each terminal as shown.
Door release
An EL-12S (AC 12 V, 0.125 A, DC 12 V, 0.2 A) or
equivalent part and a separate AC transformer (or
power supply) are required.
Door release contact: AC/DC 24 V, 0.5 A
(Minimum contact: 100 mV DC, 0.1 mA)
(N/O dry closure contact L, L).
*Run separate cables for audio/video and door release.
Call tone from door station.
Electric door
strike
AC transformer
master monitor station
(To optional units)
(AC/DC 24V, 0.5A N/O dry closure contact)
(Minimum contact: 100mV DC, 0.1mA)
Video door station
Call extension speaker
IER-2
EL-12s
Presence of sound from IER-2
NP: Non-polarized
P: Polarized
NoTEs:
• To add an expansion monitor station, see the installation
manual of the expansion monitor station.
Without grounding, the units may not operate
normally.