Aiphone LAF-20 User Manual

SPECIAL

ORDER PRODUCTS

®AI PHONE

LOUDSPEAKER INTERCOM SYSTEM

MODELS LAF-20 (twenty call master station)

LAF-20S (twenty call master with

all-call & door release)

— INSTRUCTIONS —

NAMES & FUNCTIONS

Selector button Annunciator light Microphone Speaker

“A” button

Off button (LAF-20)

All-call button (LAF-20S)

All-call output indicator

(LAF-20S)

Door release button

(LAF-20S) Directory card

Occupied light Privacy button

Talk button

Communication volume

Terminal box

Terminal cord

Off button (LAF-20S)

SPECIFICATIONS

★ Power source: ★ Current consumption: ★ Power output: ★ Communication:

DC 12V. Use PS-12C Power Supply. 350 mA maximum per station. 800 mW maximum at 20 ohms. Push button station selection. Calling by tone or voice. Press-to-talk

operation at calling master.

★ Door release switching

contact capacity:

FEATURES

AC 240V, lA; DC 30V, lA.

★ Background music (and all-call w/LAF-20S) can be included using BG-IAC/PG-KC

and PG-30A.

★ Straight paging is available using an 8-ohm horn and PG-3 Paging Amplifier.

★ Hands-free reply and high power output allow use in large or noisy areas. ★ Single talk path. ★ Includes a button for door release (LAF-20S). ★ Individual volume controls for communication and call tone on each master. ★ Privacy button helps prevent eavesdropping. ★ Several different substations to suit various needs. ★ Timer circuit turns off annunciator lights in approximately 20 seconds. ★ Designed for desk or wall mount. ★ Optional field installed handset for private communication (desktop only).

— 1 —

INSTALLATION

Do not attempt to install your LAF master stations until you have read and thoroughly under

stand the installation instructions. Aiphone’s warranty is void if the system is installed in a manner other than described in this manual.

ACTUAL TERMINAL LOCATION

: Connect to relative stations. : Receiving a call and BGM. : Power supply connection. ; Common connection.

A3 A2 A1 L L 10 9

7 6 5 4 3 2

1 - AlO

-f , E R

: Occupied light control.

L , L : Door release contacts.

+ P3 P2 PI E R C A10A9 A8 A7 A6 A5 A4

: All-call control.

P2 , P3 : All-call output.

WIRING

Lay out your system in advance. Determine the exact location of each station, and make a

sketch showing the number of wires required from each station to the other stations. Assign station numbers at this time.

Refer to the chart below and select the proper wire gauge to meet your specific distance

requirements.

AWG WIRE SIZE 24 AWG DISTANCE

400' 650' 1000'

22 AWG

20 AWG

18 AWG

1600'

Begin your installation with master station All masters included in your system should be

connected and tested before beginning substation installation. Note the position of the (C) terminal on each master station, and be sure that each station is wired correctly.

After installing your second station, we recommend the power supply be connected and a test

be made of all functions, calling and talking between each station. Unplug the power supply before making any additional connections.

WALL MOUNTING INSTALLATION

1) Attach mounting bracket to wall

or box with supplied screws.

2) Mount station on bracket.

TERMINAL BOX INSTALLATION

1) Remove screw and cover as

shown.

2) Mount bottom case to wall or

The Terminal box may be mounted inside 3-gang box.

box with supplied screws.

3) Wire terminals as necessary and

replace cover.

- 2

ADJUSTING VOLUME CONTROLS

Fingertip adjustment ensures pleasant communication at the

desired level all the time.

Use a screwdriver to adjust the call tone volume control to the

desired level.

LA-D INSTALLATION

1) Attach unit to a single gang box with the

screws provided.

2) When mounting to wall, wires may be

routed thru the top or bottom of the back case. As shown, cut

CUT OU T

(1)

Screw (x21

PhJiltlliin

Connecting Gang

Js3 5 mm 1 (3-5/16")

out the thin part of case when passing wires thru top.

INSTALLATION OF LAR-2 OPTIONAL HANDSET

BACK VIEW (TOP. BIGHT)

1) Remove the 4 mounting screws on bottom of the master as shown in Fig. 1, and lift the plastic case

from the base.

2) Using a nipper or soldering iron, remove the jumpers between A & G, I & J, and K & L on the

printed circuit board as shown in Fig. 2.

3) Make a hole in the body of the base to pass the wires thru using a soldering iron, '/4" or 8mm drill as shown in Fig. 3. If a soldering iron is used, clean away the burned plastic with a sharp knife as shown in Fig. 4.

4) Route the wires into the base and mount the handset with screws provided as shown in Fig. 5.

5) Solder the 12 wires from the handset to the printed circuit board as shown in Fig. 6. Be sure the wires are in the correct order.

6) Replace the plastic case and reinstall the mounting screws.

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