Aiphone LAF-40CA, LAF-20CA Components & Wiring, LAF-C Terminal Definitions, Wiring & Installation

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INTERNAL CONTROLS:
CALL TONE VOL.: SW4, located inside unit under select switch panel, controls call tone volume. Level is set at max. from factory. Change position to lower call tone volume.
VOX. SENSITIVITY: Potentiometer is located inside unit behind handset. Adjust for sensitivity of VOX circuit. SW5 SWITCH: In "A" position from factory, which mutes call tone from sub while system is occupied.
"B" position allows call tone to be heard while system is occupied.
JUMPERS:
In multi-master system, remove E/- jumper at master and sub stations.
When add-on selector is included, remove X2/X3 jumper.

2 COMPONENTS & WIRING

Individual Components for System:

LAF-20C

20-call console-style master station

LAF-20CA

20-call console-style master station with handset

LAF-40C

40-call console-style master station

LAF-40CA

40-call console-style master station with handset

LA-20AS

20-call Add-on Selector

LA-40AS

40-call Add-on Selector

PS-1225UL

12V DC, 2.5A Power Supply. One per system, or

 

one per BG-10C when All Call/Music is included

 

(also powers intercom system)

LE-series

Any sub station with "LE-" prefix

LS-NVP/B

Vandal proof sub station for LAF-C/CA system

SBX-NVP

Surface mount box for LS-NVP

SA-1

Surge Arrestor (1 per 2 wires being protected)

LAF-C TERMINAL DEFINITIONS:

+Positive 12V DC

- Negative

1~40 Station number, establishes communication to other master or sub

C "CALL", for receiving a call from another master

E Common communication

R Control for Occupied light

("R" is grounded when system is occupied)

Y All Call override control of station in use during All Call (9V DC when system is in All Call mode)

P1 All Call activation control

(10V DC when All Call is activated) P2, P3 Audio output for All Call initiation

(Voice transmit from master initiating All Call) X1~X8 Connection for add-on selector (Type E)

Remove X2/X3 jumper when add-on selector is used.

LAF-20C/CA terminal block

+

-

E

E

E

E X1

X2

X3

X4

C

R

Y

P1 P2 P3 X5

X6

X7

X8

10

9

8

7

6

5

4

3

2

1

20

19

18

17

16

15

14

13

12

11

TRANSMIT RECEIVE

WIRING & INSTALLATION:

Before Installation:

·Make sure you have the proper power supply(ies) and all necessary and compatible equipment for the system.

·All Call and/or background music are optional features which require additional equipment. See notes below.

·Lay out your system in advance, assigning station numbers for all sub station locations.

·Surge protection for the intercom equipment is strongly recommended. Add SA-1 surge arrestors for the power supply, plus one per two wires connected to the master station. See diagram on page 3.

Wire:

·Shielded wire is recommended. Use the proper gauge for the distance being run.

·Wiring between masters must be a multi-conductor cable. If more than one cable is used to connect masters, the "E", "C", and number terminal wires must be in the same jacketed cable. If necessary, run multiple "E"

wires,

one in each cable.

Wiring Method:

 

·Run intercom cables at least 20" away from all AC wiring, fluorescent lights, dimmer switches, and other electrical or electronic devices. Wiring can cross AC wires at 90 degrees.

·Sub stations may be homerun to the nearest master station, or daisy-chained. If daisy-chained, include 2 common wires plus one individual wire per station on the run.

·In a SINGLE MASTER SYSTEM ONLY: Subs can be wired with 2 conductors homerun. Jumpers between "E" and "-" must be attached on all subs and at the master.

Intercom Locations:

·Do not install intercoms near dimmer or light switches, or other electrical wall devices.

·To prevent feedback, do not place sub stations back-to-back on a common wall.

All Call and Background Music:

· The BG-10C adaptor and PS-1225UL power supply are required for each group of 11 stations to receive All Call and music. This equipment should be installed in an equipment room or in a cabinet. Capacitors (NP-25V) are required for each sub station on the system. See wiring diagram on page 5 for installation information.

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Contents Special Names & FeaturesInstructions OrderLAF-C Terminal Definitions Components & WiringWiring & Installation 3a. Single Master SYSTEM, no ALL Call Wiring DiagramsWiring Note 3b. Dual Master System with MASTER-TO-MASTER CommunicationLAF-20CA LE-D LE-DA 3d. Master Station with ADD-ON SelectorLAF-40CA LS-NVP 3e. Single Master System with ALL Call LAF-20CA LE-BNOperations Operations & SpecificationsSpecifications Shielded cable is recommendedTroubleshooting Guide Problem SolutionToll Free Technical Support Precautions & WarrantyWarranty
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