Specifications
– 11 –
WIRING DISTANCE:
Dimensions (HxWxD): 180H x 143W x 53.5D (mm). 7-1/16" x 5-5/8" x 2-1/8"
RY-PA Contact Rating: 1A, 110V AC or 24V DC
RESTRICTIONS
· Only one power supply can be used on one system.
· Up to 4 masters can be connected on the multiple masters confi guration, or up to 3 masters on the intermix
confi guration.
· Use the door release button only when the TALK button is not pressed. (Don
'
t operate the door release when talking.)
Proper (relay) operation may not be guaranteed under the following conditions.
· When a master is called from another sub or master station while talking (Including when the Call tone is sounding)
· When a master is called from another master while the OCCUPIED lamp is on
6
TROUBLESHOOTING GUIDE
ENTRY # PROBLEM POSSIBLE CAUSE SOLUTION
１
Door station does not call
in (no call tone or LED
light).
Missing jumpers Are there 2 or 3 conductors run to the door station? If 2 wires, jumper must
remain attached between
E
and
—
at both the door station and the master
station. Replace jumper. In a multi-master system, the
E
/
—
jumper
should be removed and 3 wires should be connected.
2
Door station does not call
in (no call tone or LED
light) -- 3-wire connection.
Missing connection of
—
terminal.
If communication works, check connection between
—
terminal of door
station and master. Test call-in at master station by touching a jumper wire
between # and
—
terminal of master. If this rings the tone and lights the
light, the
—
wire from the door station is not connected properly.
3
Door station does not call
in (no call tone or LED
light) -- 3-wire connection.
Mis-wiring of
1
and
E
terminals.
Check that the
1
and
E
wire are not reversed. If they are, communication
will work but call-in will not.
4
No communication to
door station.
Mis-wiring of
E
terminal.
Communication is between the
1
and
E
terminal of the door station to a #
and
E
terminal of the master station. If call-in works, check the
E
wire for
continuity. Check the
1
and
E
wires at the sub to ensure that they are not
reversed.
–
+
–
+
M1 M2 PS M3
PS
A
B
D1 D2
12V DC
POWER ONLY
12V DC
POWER ONLY
RY-PA
Figure 1
WIRING DISTANCE
Wire
Distance
（
MAX
）
AB
φ 1.0 ｍm（18AWG） 480 m（1575’） 240 ｍ（780’）
Figure 2
aiphone_e.indd 11 09.2.17, 2:14:22 PM