Aiphone LEM-1DL installation manual Installation Tips, Troubleshooting Guide, Fax

INSTALLATION TIPS:

1.Use shielded wire for the communication path, and ground one end of the shield to an earth ground.

2.Run intercom wire at least 20" away from AC wiring, fluorescent lights or dimmer switches.

3.Keep intercom cable away from alarm, data, phone, and video cables.

4.Door release wires must be in a separately jacketed cable from the intercom wires. Use two separate cables; one for audio and one for door release.

5.When installing a second master station, wire must be run from the first master station, not from the door station. See diagram on page 2.

6.Do not install master station near light switches, dimmer switches, or other devices that may cause interference with the intercom system.

7.Do not install the master station on the opposite wall from the door station. If the units are too close, acoustical feedback may result.

TROUBLESHOOTING GUIDE:

PROBLEM	POSSIBLE CAUSE	SOLUTION
		(A) Press OFF button on master. If call tone still doesn't come through,
		read solution (B).
	(A) OFF button on master not pressed.	(B) Make sure jumper is attached to E/- terminals on door station (or
		proper wires jumpered on LS-NVP, LE-SS subs). Wire from E/- should be
No call tone from door to master station.	(B) E/- jumper not attached	connected to E of master.
		Ensure that the jumper at the door station is attached between E and -
No communication from door station.	E/- jumper not attached	terminals.
		Check power supply. If it's model SKK-620, remove and replace with
No call tone, no communication. Chirping sound		model PT-1210N. Verify that voltage on +/- terminals of LEM-1DL is
when volume control is turned all the way up.	Wrong voltage on LEM-1DL.	between 12-16V AC or 12-24V DC.
In a system with RY-AC and external signaling		Make sure the component module is installed with the bare wire under
device connected, the external device is activated	DAK-2S component module missing or	the 1 terminal, and the WHITE wire of the RY-AC spliced to the colored
every time the TALK button is pressed.	installed incorrectly.	wire.
In a dual master system, call tone is heard at the		Install 1 component module from DAK-2S at each master. See
second master when pushing the talk switch on one		instructions on Pg. 3. If DAK-2S is not available, connect specified diode
master.	Missing DAK-2S dual master adaptor kit	and capacitor in parallel and install as shown on Pg. 3.
		Ensure that each master has its own power supply. Use any power
In a dual master system, feedback occurs when		supply with output between 12-16V AC or 12-24V DC. Aiphone
pressing the talk button.	One power supply is used for both masters.	recommends the PT-1210N.
		Ensure that the intercom wire is run at least 20" away from any AC
		electrical wire, or crossed at 90 degrees. Intercom wire should be
		shielded, with the drain wire connected to an earth ground at the master
AC noise when listening to the door station.	Intercom wiring run close to AC wiring.	end.
		Ensure that power wires coming from the PT-1210N are not run in the
AC noise when talking to the door station.	Power wires run with communication wires	same jacketed cable with the communication wires run to the door.

Aiphone Communication Systems	Toll Free Technical Support:
1700 130th Ave. N.E.		Pg. 4
	(800) 692-0200
Bellevue, WA 98005		LEM-1DL Supp Instr.
	FAX: (800) 832-3765
(425) 455-0510		# 90111
FAX (425) 455-0071	E-mail tech-serv@aiphone.com	0207JDJS