Aiphone LEM-1DL Manual Do Utilizador

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.

Aiphone Communcation Systems

1700 130th AVE N.E.

Bellevue, WA 98005

(425) 455-0510

FAX (425) 455-0071

1-800-692-0200

E-mail tech@aiphone.com

LEM-1DL Supplement

Pg. 4

#90111

1109JD

No call tone from door to master station.

(A) OFF button on master not pressed.

(B) E/- jumper not attached.

(A) Press OFF button on master.  If call tone still doesn’t come 

through, read solution (B).

(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 connected to E of master.

No communication from door station.

E/- jumper not attached

Ensure that the jumper at the door station is attached between 

E and - terminals

No call tone, no communication.  Chirping 

sound when volume control is turned all the 

way up.

Wrong voltage on LEM-1DL

Check power supply.  If it’s a model SKK-620, remove and 

replace with model PT-1210N.  Verify that voltage on +/- 

terminals is between 12-16V AC or 12-24V DC.

In a system with RY-AC and external signaling 

device connected, the external device is 

activated every time TALK button is pressed.

DAK-2S component module missing or 

installed incorrectly.

Make sure the component module is installed with the bare 

wire under the 1 terminal and the white wire of the RY-AC 

spliced to the colored wire.

In a dual master system, call tone is heard 

at the second master when pushing the talk 

button on one master.

Missing DAK-2S dual master adaptor 

kit.

Install 1 component module from the DAK-2S at each master.  

See Pg. 2. If DAK-2S is not available, connect specified diode 

and capacitor in parallel and install as shown on PG. 3.

In a dual master system, feedback occurs 

when pressing the talk button.

One power supply is used for both 

masters.

Ensure that each master has its own power supply.  Use any 

power supply with output between 12-16V AC or 12-24V DC.  

Aiphone recommends the PT-1210N.

AC noise when listening to the door station

Intercom wiring run close to AC wiring.

Ensure that the intercom wire is run at least 20” from any AC 

electircal wire, or crossed at 90 degrees.  Intercom wire should 

be shielded, with the drain wire connected to an earth ground 

at the master end.

AC noise when talking to the door station

Power wires run with communication 

wires.

Ensure that power wires coming from the PT-1210N are not 

run in the same jacket cable with the communication wires run 

to the door.