– 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
）
A
B
φ 1.0 ｍm（18AWG）
480 m（1575 ）
240 ｍ（780 ）
Figure 2
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09.2.17, 2:14:22 PM
