Aiphone LEF-3L manual Troubleshooting Guide, Restrictions, Wiring Distance

WIRING DISTANCE: D1 M1 M2 PS M3 D2

RY-PA

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12V DC

POWER ONLY

A

Figure 1

B

PS

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12V DC POWER ONLY

Figure 2

WIRING DISTANCE

Wire	Distance（MAX）
	A	B
φ 1.0 ｍm（18AWG）	480 m（1575’）	240 ｍ（780’）

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 configuration, or up to 3 masters on the intermix configuration.

·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

6TROUBLESHOOTING GUIDE

ENTRY #	PROBLEM	POSSIBLE CAUSE		SOLUTION
	Door station does not call	Missing jumpers		Are there 2 or 3 conductors run to the door station? If 2 wires, jumper must
１	in (no call tone or LED			remain attached between E and — at both the door station and the master
	light).			station. Replace jumper. In a multi-master system, the	E / — jumper
				should be removed and 3 wires should be connected.
	Door station does not call	Missing connection of —		If communication works, check connection between —	terminal of door
2	in (no call tone or LED	terminal.		station and master. Test call-in at master station by touching a jumper wire
	light) -- 3-wire connection.			between # and — terminal of master. If this rings the tone and lights the
				light, the — wire from the door station is not connected properly.
	Door station does not call	Mis-wiring of	1 and E	Check that the 1 and E wire are not reversed. If they are, communication
3	in (no call tone or LED	terminals.		will work but call-in will not.
	light) -- 3-wire connection.
	No communication to	Mis-wiring of	E	Communication is between the 1 and E terminal of the door station to a #
4	door station.	terminal.		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.

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