LEF Series Archives

TECHNICAL KNOWLEDGE BASE LEF Series

LEF Series

LEF-10 without Door Release

4 LE-D, 2 LEF-10

4 LE-DA, 2 LEF-10

7 LE-B, 3 LEF-10

10 LE-D, 3 LEF-10

5 LE-A, 1 LEF-10

3 LE-A, 1 LEF-10

1 LEF-10, 1 External Speaker with Call Button

6 LE-D, 1 LEF-10

8 LE-D, 1 LEF-10C, 2 Wire

8 LE-D, 1 LEF-10

4 LE-A, 1 LEF-10

8 LE-D, 2 LEF-10

6 LE-D, 4 LEF-10C

2 LE-D, 4 LEF-10C

9 LE-D, 2 LEF-10

6 LE-D, 2 LEF-10

1 LE-D, 3 LEF-10

1 LE-BN, 2 LE-D, 4 LEF-10

10 LE-D, 2 LEF-10

2 LE-D, 5 LEF-10

1 LEF-10, 7 External Speakers

9 LE-A, 1 LEF-10

1 LE-D, 6 LEF-10

1 LE-D, 10 LEF-10

3 LE-B, 2 LE-DA, 2 LEF-10C

4 LE-D, 3 LEF-10, Door Call Only

6 LE-D, 4 LEF-10, Door Call Only

10 LEF-10

8 LE-A, 1 LEF-10

7 LE-A, 1 LEF-10

1 LE-A, 1 LEF-10

5 LE-D, 1 LEF-10

4 LE-D, 3 LEF-10

6 LE-D, 3 LEF-10

6 LE-A, 1 LEF-10

10 LE-A, 1 LEF-10S

9 LE-A, 4 LEF-10

11 LEF-10

3 LE-D, 8 LEF-10

8 LEF-10

7 LEF-10

3 LE-D, 1 LEF-10

6 LEF-10

5 LE-D, 5 LEF-10

9 LEF-10

10 LE-D, 1 LEF-10

10 LE-A, 1 LEF-10

1 LE-D, 4 LEF-10C

6 LEF-10, 1 BA-1 Paging Adaptor

1 LE-D, 5 LEF-10

7 LE-D, 4 LEF-10C

1 LE-DA, 9 LEF-10

2 LE-D, 9 LEF-10

6 LE-D, 5 LEF-10

1 LE-D, 6 LEF-10, RY-AC External Signaling Relay

LEF-10C and LEF-10S with All Call

1 LE-D, 3 LEF-10S, BG-10C, Door Release

2 LE-D, 5 LEF-10S, BG-10C, Door Release

2 LE-D, 7 LEF-10C, BG-10C

8 LE-SS/A, 1 LEF-10C, BG-10C

7 LE-B, 2 LEF-10C, BG-10C

2 LE-D, 8 LEF-10C, BG-10C, Door Release

1 LE-D, 10 LEF-10C, BG-10C

9 LEF-10S, BG-10C

8 LEF-10S, BG-10C

2 LE-D, 6 LE-A, 3 LEF-10C, BG-10C

8 LE-SS/A, 1 LEF-10S, BG-10C, Door Release

6 LEF-10C, BG-10C

3 LE-DA, 7 LEG-10C, BG-10C

6 LE-A, 3 LEF-10S, BG-10C

1 LE-D, 3 LE-BN, 2 LEF-10C, BG-10C

4 LE-A, 2 LEF-10S, BG-10C

9 LE-A, 2 LEF-10S, BG-10C

5 LEF-10C, BG-10C

7 LE-A, 3 LEF-10C, BG-10C

5 LEF-10S, BG-10C, BA-1 Paging Adaptor

3 LE-D, 8 LEF-10C, BG-10C, 2 Door Release

3 LE-D, 3 LE-BN, 5 LEF-10C, BG-10C

2 LE-D, 4 LEF-10C, BG-10C, Door Release, 1 RY-AC External Signaling Relay, 1 BA-1 Paging Adaptor

2 LE-D, 1 LE-DA, 3 LE-BN, 4 LEF-10C, BG-10C

2 LE-D, 9 LEF-9S, BG-10C, Door Release

2 LE-D, 9 LEF-10S, BG-10C, Door Release

3 LE-A, 1 LEF-10S, BG-10C, Door Release

10 LEF-10S, BG-10C, 1 BA-1 Paging Adaptor

2 LE-D, 8 LEF-10C, BG-10C

8 LE-B, 3 LEF-10S, BG-10C

3 LEF-10S, BG-10C, 3 BA-1 Paging Adaptors

3 LE-D, 3 LEF-10S, BG-10C, Door Release

1 LE-DA, 2 LE-B, 4 LEF-10C, BG-10C, Door Release

2 LE-D, 8 LE-A, 1 LEF-10S, BG-10C

1 LE-D, 9 LE-A, 1 LEF-10C, BG-10C

3 LE-D, 6 LE-B, 1 LEF-10C, BG-10C

10 LE-A, 1 LEF-10S, BG-10C, 2-Wire

1 LE-D, 8 LEF-10C, BG-10C

4 LEF-10C, BG-10C

6 LE-A, 2 LEF-10S, BG-10C

3 LE-D, 6 LE-A, 1 LEF-10S, BG-10C

3 LE-D, 2 LE-A, 4 LEF-10C, BG-10C

1 LE-D, 9 LEF-10S, BG-10C, Door Release

1 LE-DA, 6 LE-A, 2 LEF-10C, BG-10C

8 LE-A, 2 LEF-10S, BG-10C

1 LE-D, 4 LEF-10S, BG-10C

1 LE-D, 6 LEF-10S, BG-10C, Door Release

11 LEF-10S, BG-10C

2 LE-DA, 6 LE-A, 1 LEF-10S, BG-10C

7 LE-B, 1 LEF-10C, BG-10C

6 LE-D, 1 LEF-10C, BG-10C

6 LE-D, 5 LEF-10C, BG-10C

2 LE-D, 7 LE-A, 1 LEF-10S, BG-10C

4 LE-A, 1 LEF-10S, BG-10C

5 LE-A, 1 LEF-10S, BG-10C

1 LE-D, 10 LEF-10C, BG-10C, Door Release

10 LEF-10S, BG-10C

1 LE-D, 5 LE-B, 1 LE-BN, 3 LEF-10C, BG-10C

3 LE-A, 3 LEF-10S, BG-10C

2 LE-D, 5 LEF-10C, BG-10C

1 LE-D, 4 LEF-10S, BG-10C, Door Release

7 LE-D, 1 LEF-10S, BG-10C

4 LEF-10S, BG-10C

7 LE-D(A), 1 LEF-10S, BG-10C

2 LE-D, 4 LE-B, 4 LEF-10C, BG-10C

6 LE-A, 1 LEF-10S, BG-10C

2 LE-D, 3 LE-B, 4 LEF-10C, BG-10C

8 LE-B, 2 LEF-10C, BG-10C

10 LE-A, 1 LEF-10S, BG-10C

9 LE-A, 1 LEF-10S, BG-10C

9 LE-A, 1 LEF-10S, BG-10C, 1 BA-1 Paging Adaptor

8 LE-A, 1 LEF-10S, BG-10C

1 LE-D, 6 LE-A, 1 LEF-10S, BG-10C

1 LE-SS/A, 8 LE-A, LEF-10C, BG-10C, Door Release

LEF-3 without Door Release

1 LEF-3, 3 External Speakers without Call Button

1 LE-D, 3 LEF-3, Door Call Only

2 LE-D, 2 LEF-3, Door Call Only

1 LE-SSR, 2 LEF-3, Door Call Only

1 LE-D, 2 LEF-3, Door Call Only

2 LE-A, 1 LE-D, 2 LEF-3

2 LE-D, 5 LEF-3

3 LEF-3

3 LE-D, 2 LEF-3

4 LEF-3

3 LE-D, 4 LEF-3

2 LE-D, 4 LEF-3

2 LE-D, 3 LEF-3

1 LE-D, 3 LEF-3

1 LE-D, 1 LEF-3

This wiring diagram shows 1 LE-D connected to 1 LEF-3.

2 LE-D, 7 LEF-3

3 LE-D, 9 LEF-3

2 LE-D, 2 LEF-3

2 LE-D, 1 LEF-3, 2 Wire

1 LEF-3, 2 External Speakers with Call Buttons

3 LE-D, 1 LEF-3, 2 Wire

3 LE-A, 1 LEF-3, 2 Wire

2 LE-D, 1 LEF-3, 2 RY-AC External Signaling Relays

1 LEF-3, 1 External Speaker (with and without call button)

1 LE-A, 1 LEF-3, 1 BA-1 Paging Adaptor

1 LE-D, 1 LEF-3, 1 External Speaker

2 LE-D, 1 LEF-3

2 LEF-3

Wiring diagram showing 2 LEF-3 answering stations.

LEF-3C with All Call

1 LE-D, 3 LEF-3C, BG-10C

3 LEF-3C, BG-10C

4 LEF-3C, BG-10C

LEF-3L with Door Release

2 LE-D, 1 LEF-3L, 2 Wire, Door Release

2 LE-D, 6 LEF-3L, Door Release

1 LE-D, 4 LEF-3L, Door Release

3 LE-D, 2 LEF-3L, Door Release

1 LE-D, 10 LEF-3L, Door Release

2 LE-D, 9 LEF-3L, Door Release

1 LE-D, 6 LEF-3L, Door Release

3 LE-D, 5 LEF-3L, Door Release

2 LE-D, 5 LEF-3L, Door Release

2 LE-D, 2 LEF-3L, Door Release

2 LS-NPV/C, 1 LEF-3L, AC-10S Keypad, 2 Door Release

2 LE-D, 4 LEF-3L, Door Release

3 LE-D, 4 LEF-3L, Door Release

2 LE-D, 8 LEF-3L, Door Release

2 LE-D, 2 LEF-3L, Door Release, Door Call Only

1 LE-D, 3 LEF-3L, 2 Door Releases, Door Call Only

1 LE-DA, 3 LEF-3L, Door Release, Door Call Only

3 LE-D, 1 LEF-3L, Door Release

LEF-3L, 3 External Speakers with Call Button, Door Release

1 LE-D, 5 LEF-3L, Door Release

3 LE-D, 3 LEF-3L, Door Release

LEF-3L, External Speaker with Call Button, Door Release

2 LE-D, 1 LEF-3L, 1 RY-AC External Signaling Relay, Door Release

1 LE-D, 1 LEF-3L, Door Release

1 LE-D, 1 LEF-3L, 2 Door Release

2 LE-D, 3 LEF-3L, Door Release

3 LE-SS/A, 2 LEF-3L, Door Release

1 LE-SS-1G, 2 LEF-3L, 2 Door Release

2 LEF-3L, External Speaker, Door Release

2 LE-D, 7 LEF-3L, Door Release

2 LE-D, 1 LEF-3L, Door Release

1 LE-SSA, 1 LEF-3L, Door Release

LEF-5 with Door Release

1 LE-D, 3 LEF-5, Door Release

2 LE-D, 5 LEF-5, Door Release

1 LE-D, 2 LEF-5, 4 Door Releases

5 LE-DA, 7 LEF-5, Door Release

3 LE-D, 5 LEF-5, Door Release

4 LE-D, 2 LEF-5, Door Release

5 LE-DA, 2 LEF-5, Door Release

3 LE-DA, 1 LEF-5, 3 RY-AC External Signaling Relays, Door Release

4 LE-D, 1 LEF-5, 4 RY-AC External Signaling Relays, Door Release

2 LE-DA, 8 LEF-5, Door Release

1 LE-D, 4 LEF-5, 2 Door Releases, Man Trap

2 LE-D, 2 LEF-5, Door Release, Door Call Only

4 LE-DA, 2 LEF-5, Door Release, Door Call Only

4 LE-SS/A, 2 LEF-5, Door Release, Door Call Only

2 LE-D, 3 LEF-5, Door Release, Door Call Only

3 LE-D, 3 LEF-5, Door Release, Door Call Only

1 LE-D, 4 LEF-5, Door Release, Door Call Only

2 LE-D, 4 LEF-5, Door Release, Door Call Only

3 LE-D, 5 LEF-5, Door Release, Door Call Only

4 LE-D, 1 LEF-5, Door Release

3 LE-D, 1 LEF-5, 3 Door Release

3 LE-D, 1 LEF-5

2 LE-DA, 2 LEF-5, Door Release

2 LE-SS/A, 2 LEF-5, Door Release

4 LE-D, 3 LEF-5, Door Release

5 LE-D, 3 LEF-5, Door Release

5 LE-D, 1 LEF-5, Door Release

1 LE-DA, 2 LEF-5, Door Release, RY-AC External Signaling Relay

3 LE-D, 3 LEF-5, Door Release

2 LE-SSA, 1 LEF-5, 2 Door Release

3 LE-D, 4 LEF-5, Door Release

2 LE-D, 1 LEF-5, Door Release

2 LE-D, 3 LEF-5, Door Release

3 LE-D, 2 LEF-5, Door Release

4 LE-DA, 4 LEF-5, Door Release

5 LE-D, 4 LEF-5, Door Release

1 LE-DA, 2 LEF-5, 2 Door Releases

1 LE-D, 6 LEF-5, Door Release

LEF-5 without Door Release

4 LEF-5

2 LE-D, 4 LEF-5, Door Call Only

3 LE-D, 2 LEF-5, Door Call Only

3 LE-D, 1 LEF-5

2 LE-D, 1 LEF-5

3 LE-D, 2 LEF-5

5 LE-D, 1 LEF-5

4 LE-D, 1 LEF-5

1 LE-D, 2 LEF-5

2 LE-D, 4 LEF-5

1 LE-D, 1 LEF-5

5 LE-D, 4 LEF-5

3 LE-D, 3 LEF-5

2 LE-D, 2 LEF-5

6 LEF-5

5 LEF-5

2 LEF-5

4 LE-B, 2 LEF-5

5 LE-A, 3 LEF-5

5 LE-A, 2 LEF-5

1 LE-D, 3 LEF-5

LEF-5C with All Call

2 LE-D, 3 LEF-5C, BG-10C, Door Release

3 LE-D, 3 LEF-5C, BG-10C, Door Release

1 LE-DA, 4 LEF-5C, BG-10C, Door Release

1 LE-D, 3 LE-B, 1 LEF-5C, BG-10C

5 LE-B, 1 LEF-5C, BG-10C

2 LE-D, 2 LEF-5C, BG-10C, 1 Door Release

4 LE-B, 2 LEF-5C, BG-10C

1 LE-D, 3 LEF-5C, BG-10C

5 LEF-5C, BG-10C

6 LEF-5C, BG-10C

4 LEF-5C, BG-10C

2 LE-D, 4 LEF-5C

1 LE-D, 3 LEF-5C, BG-10C, Door Release

4 LE-B, 1 LEF-5C, BG-10C

Modifications

Increase timing circuit of call-in LED

Modification Increase LED timing circuit. Difficulty Level 3 – Moderate – removal or replacement of internal components. Components Required Capacitor: 220 µfd, 16V, ~2 minutes 470 µfd, 16V, ~4 minutes 1000 µfd, 16V, ~5 minutes Instructions Remove and replace C3 on the main PC board of the LEF Series master station with a different value […]

Eliminating Call Tone from Sub Station at LEF Master Station

Modification Eliminate incoming call tone from sub station at a master station. Difficulty Level 3 – Moderate – removal or replacement of internal components. Components Required N/A Instructions LEF-3/3C: remove transistor TR7. LEF-5/5C: remove transistor TR7. LEF-10/10S: remove transistor TR8. LEF-10C: remove transistor T7. LEF-3 LEF-5 LEF-10

Installing Volume Control on LE Series Sub Station

Modification Installing a volume control on an LE Series sub station. Difficulty Level 5 – Hard – circuit creation and internal addition. Components Required Variable resistor: 50 ~ 250 Ω, 1 W Resistor: 33 Ω, 1 W Instructions Install components as shown on the diagram. No physical provisions are made on the sub station for […]

LED Monitoring Indicator on an LE Series Sub Station

Modification LED monitoring indicator on an LE series sub station. This modification allows users to know that their station is being monitored by a master station. Difficulty Level 5 – Hard – circuit creation and internal addition. Components Required Resistor: 1K Ω, 0.25 W LED: general purpose Instructions Run two extra wires to each sub […]

Tape Recorder Output on LEF Master Station

Modification Tape recorder output on LEF master station allowing conversation from both sides to be recorded. Difficulty Level 5 – Hard – circuit creation and internal addition. Components Required Resistors: Two 10K Ω, 0.25 W One 10~15K variable resistor Capacitor: Two Aiphone model NP-25V (33 µfd, 25V, non-polarized) Instructions Install components as shown on the […]

Using Relay Contacts with the LEF Series

Modification Various relay contacts using the LEF Series. Difficulty Level 2 – Easy/Moderate – component connection to external points. Components Required RY-AC: external signaling relay RY-PA: 12V DC normally open relay Instructions See following diagram for options on closures available. External Signaling Selective Door Release Camera Control/Light Activation Both Door Release and Camera Control/Light Activation

All Call to Standard LE Series Sub Stations

Modification Single call sub station to receive All Call and Background Music (BGM). Difficulty Level 1 – Easy – wire connection only. Components Required Capacitor: Aiphone model NP-25V (33 µfd, 25V, non-polarized). Instructions Install capacitor in series between the number terminal of the master station and the BGR-10A/BG-10C as shown on the diagram. […]

Separate Transmit and Receive Volume Controls on LEF Series Master Station

Modification Separate transmit and receive volume controls Difficulty Level 5 – Hard – circuit creation and internal addition. Components Required Potentiometer: 10K Ω Resistor: 5.6K Ω Instructions Install potentiometer and resistor as shown on schematic. Cut trace as shown on schematic. Potentiometer will lower outgoing volume. Main volume control on the master will control the […]

Special LEF Wiring Diagrams

1 LEF-10C, 7 LEF-1C, BG-10C

1 lef-10C, 1 LEF-5C, 3 LEF-3C, 2 LE-D, 2 LE-BN, BG-10C

1 LE-D, 1 LE-AN, 1 LEF-10C, 5 LEF-3C, BG-10C

1 LE-D, 7 LEF-1C, 1 LEF-10C, BG-10C

10 LEF-1C, 1 LEF-10C, BG-10C

3 LE-A, 5 LEF-3, Split System

1 LE-D, 4 LEF-1C, 1 LEF-10S, BG-10C

10 LEF-1C, BG-10C

1 LE-DA, 3 LEF-1C, 7 LEF-10S, Door Release

2 LE-D, 3 LEF-5C, 4 LEF-10C, BG-10C, Door Release

10 LEF-3C, 1 LEF-10S, BG-10C

1 LE-D, 7 LEF-3C, 1 LEF-10C, BG-10C

1 LE-DA, 5 LE-BN, 2 LEF-5C, 2 LEF-10C, BG-10C

3 LEF-1C, 3 LEF-10C, BG-10C

Specifications

LE-B Technical Specifications

Line Drawing Specifications Power Source Supplied from Master Station Communication Open voice hands-free communication Speaker 20Ω Wiring 3-cond., overall shield – use Aiphone #822203(22AWG) or #821803(18AWG) Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Semi-flush mount Dimensions 8-3/16” x 6” x 1-15/16” Weight Approx. 0.55 lbs (250g)

LEW-10S Technical Specifications

Line Drawing Specifications Features Remote terminal box for wire organization to LEF-10 masters mounted on a table or desk Housing ABS plastic Dimensions 4-3/4″ H x 2-3/4″ W x 1-3/16″ D Weight Approx. 0.11 lbs (50g)

LEW-10 Technical Specifications

LEW-5 Technical Specifications

Line Drawing Specifications Features Remote terminal box for wire organization to master stations mounted on a table or desk Housing ABS plastic Dimensions 4-3/4″ H x 2-3/4″ W x 1-3/16″ D Weight Approx. 0.11 lbs (50g)

LT-1 Technical Specifications

Features Matches impedance when using an 8Ω speaker Provides better sound quality

BG-10C Technical Specifications

Line Drawing Specifications Power source 12V DC, 2.5A. Use PS-1225UL. (Powers LEF system and BG-10C.) Current Consumption 100mA (Standby) Max. 2.5A (Music, Chime & All Call) Output 800mW @ 20 ohms per station,11 stations max. All Call Initiation From any LEF-C master or sub master and LEF-10S. All Call Reception Any LEF series master […]

RY-PA Technical Specifications

Line Drawing Specifications Features Door release activation N/O contact output Power Source DC 12V Contact Rating 24V DC, 1A or 240V AC, 300mA Compatible Stations Door release relay for LEF Dimensions 1-3/8″H x 2-3/16″W x 7/8″D

LS-NVP/C Technical Specifications

Line Drawing Specifications Power Source Supplied from Master Station Communication Open voice hands-free communication Speaker 20Ω Wiring 3-cond., overall shield – use Aiphone #822203(22AWG) or #821803(18AWG) Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Flush mount or surface mount with SBX-NVP Electrical Box 3-gang box Dimensions 7-1⁄2″ H x 5-1⁄2″ W x 3/32″ D (faceplate)

LE-SSR Technical Specifications

Line Drawing Specifications Features Red mushroom button Power Source Supplied from Master Station Communication Open voice hands-free communication Speaker 20Ω Wiring 3-cond., overall shield – use Aiphone #822203(22AWG) or #821803(18AWG) Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Flush Mount or surface mount with SBX-2G/A Electrical Box Two-gang box Dimensions 4-11⁄16″ H x 4-11⁄16″ W […]

LE-SS/A Technical Specifications

Line Drawing Specifications Power Source Supplied from Master Station Communication Open voice hands-free communication Speaker 20Ω Wiring 3-cond., overall shield – use Aiphone #822203(22AWG) or #821803(18AWG) Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Flush Mount or surface mount with SBX-2G/A Electrical Box Two-gang box Dimensions 4-11⁄16″ H x 4-11⁄16″ W x 2″ D

LE-SS-1G Technical Specifications

Line Drawing Specifications Power Source Supplied from Master Station Communication Open voice hands-free communication Speaker 20Ω Wiring 3-cond., overall shield – use Aiphone #822203(22AWG) or #821803(18AWG) Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Flush Mount or surface mount with SBX-1G Electrical Box Single-gang box Operating Temperature Speaker rating: -67°F to 185°F (-55° to 85°C) […]

LE-DA Technical Specifications

Line Drawing Specifications Power Source Supplied from Master Station Communication Open voice hands-free communication Speaker 20Ω Wiring 3-cond., overall shield – use Aiphone #822203(22AWG) or #821803(18AWG) Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Flush Mount Electrical Box Two-gang box Operating Temperature 14°~ 140°F (-10°~ 60°C) Dimensions 4-1/2” H x 4-9/16” W x 1-9/16” D […]

LE-D Technical Specifications

Line Drawing Specifications Power Source Supplied from Master Station Communication Open voice hands-free communication Speaker 20Ω Wiring 3-cond., overall shield – use Aiphone #822203(22AWG) or #821803(18AWG) Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Surface wall mount Electrical Box Single-gang box Operating Temperature 14°~ 140°F (-10°~ 60°C) Dimensions 3-7/16” W x 4-3/4” H x 1-1/8” […]

LE-BN Technical Specifications

LE-A Technical Specifications

Line Drawing Specifications Power Source Supplied from Master Station Communication Open voice hands-free communication Speaker 20Ω Wiring 3-cond., overall shield – use Aiphone #822203(22AWG) or #821803(18AWG) Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Desk or Surface wall mount Electrical Box Single-gang box or ring Operating Temperature 32°~104° F (0° ~ 40° C) Dimensions 6-1/4” […]

LE-AN Technical Specifications

Line Drawing Specifications Power Source Supplied from Master Station Communication Open voice hands-free communication Speaker 20Ω Wiring 3-cond., overall shield – use Aiphone #822203(22AWG) or #821803(18AWG) Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Desk or Surface wall mount Electrical Box Single-gang box or ring Operating Temperature 32°~104° F (0° ~ 40° C) Dimensions 6-1/4” […]

LEF-1C Technical Specifications (Discontinued)

Line Drawing Specifications Power Source DC 12V, supplied from PS-1208UL (use PS-1225UL if installing BG-10C) Current Consumption 300mA max. Capacity One door station Communication Open voice hands-free communication Output 800mW at 20Ω Wiring Homerun to BG-10C – 822212, 22 AWG 12 conductor, overall shield Looped (max. 9 stations) – 822220, 22 AWG 20 conductor, overall […]

LEF-10C Technical Specifications

Line Drawing Specifications Power Source DC 12V, supplied from PS-1208UL (use PS-1225UL if installing BG-10C) Current Consumption 300mA max. Capacity Up to 10 Master or Sub stations Communication Open voice hands-free communication Output 800mW at 20Ω Wiring Aiphone 20 conductor, overall shield wire #822220 Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Door Release N/O dry […]

LEF-10S Technical Specifications

LEF-10 Technical Specifications

LEF-5C Technical Specifications

Line Drawing Specifications Power Source DC 12V, supplied from PS-1208UL (use PS-1225UL if installing BG-10C) Current Consumption 300mA max. Capacity Up to 5 Master or Sub stations Communication Open voice hands-free communication Output 800mW at 20Ω Wiring Aiphone 15 conductor, overall shield wire #822215 Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Door Release N/O dry […]

LEF-5 Technical Specifications

Line Drawing Specifications Power Source DC 12V, supplied from PS-1208UL (use PS-1225UL if installing BG-10C) Current Consumption 300mA max. Capacity Up to 5 Master or Sub stations Communication Open voice hands-free communication Output 800mW at 20Ω Wiring Aiphone 10 conductor, overall shield wire #822212 Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Door Release N/O dry […]

LEF-3C Technical Specifications

Line Drawing Specifications Power Source DC 12V, supplied from PS-1208UL (use PS-1225UL if installing BG-10C) Current Consumption 300mA max. Capacity Up to 3 Master or Sub stations Communication Open voice hands-free communication Output 800mW at 20Ω Wiring Aiphone 10 conductor, overall shield wire #822212 Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Semi-flush mount Dimensions […]

LEF-3L Technical Specifications

Line Drawing Specifications Power Source DC 12V, supplied from PS-1208UL (use PS-1225UL if installing BG-10C) Current Consumption 440mA max. Capacity Up to 3 Master or Sub stations Communication Open voice hands-free communication Output 800mW at 20Ω Wiring Aiphone 10 conductor, overall shield wire #822212 Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Door Release N/O dry […]

LEF-3 Technical Specifications

Line Drawing Specifications Power Source DC 12V, supplied from PS-1208UL (use PS-1225UL if installing BG-10C) Current Consumption 300mA max. Capacity Up to 3 Master or Sub stations Communication Open voice hands-free communication Output 800mW at 20Ω Wiring Aiphone 10 conductor, overall shield wire #822210 Wiring Distance 650′ (22AWG) or 1600′ (18AWG) Mounting Desk or Surface […]

SBX-ACE Technical Specifications

Line Drawing Specifications Features Weather resistant Includes space inside for wiring Mounts to 1-gang box or ring Can mount directly to wall surface Material 18 gauge polished stainless steel Mounting Surface mount directly to the wall or 1-gang box Overall Dimensions 7-1⁄16″ H x 9-⅛” W x 4-¼” D (top) 1-⅝” D (bottom) Faceplate […]

KMB-45 Technical Specifications

Line Drawing Specifications Features 45˚ Mullion Mounting Bracket for C-D, GT-D, IF-DA, JO-DA, JP-DA, KB-DAR, KB-DAR-M, or LE-D Can mount to either right or left of the door Mounting Surface mount directly to the wall or mullion Dimensions 5-1/2” H x 5-1/2” W

AC-10S Technical Specifications (Discontinued)

Line Drawing Specifications Power Source 12-24V AC or DC Current Consumption AC: 100mA (max.) DC: 70mA (max.) Number of Relays 2 Relay Contact Capacity 24V DC, 3A (resistive load) 1A (inductive load) 24V AC, 3A (resistive load) 1A (inductive load) Mounting Surface wall mount Protection Rating IP54 Operating Temperature -4°~140° F (-20° ~ 40° […]

Tips

Reducing Radio Frequency Interference

Modification Reducing RF interference when too close to a radio station tower, or other source emitting RF noise. Difficulty Level 4 – Moderate/Hard – internal connection or component addition. Components Required Choke coil: 180 µH inductance. Capacitors: 0.01 µfd, 25V 0.02 µfd, 25V AC plug adaptor: 3-prong to 2-prong type. Instructions Install the 3-prong to […]

LEF Power Surge Prevention

Summary Modern intercom systems, with solid state circuitry, are much more efficient and compact than older systems with relays, coils, and vacuum tubes. Unfortunately, they are also more susceptible to malfunction or failure due to transient overvoltage, such as lightning and AC power surges. Lightning Lightning overvoltage is caused by a strike of lightning to […]

Videos

LEF Series Door Release Wiring

This short video explains how door release wiring works on the LEF Series.

LEF General Installation and Operation Guide

The video provides a general overview of the LEF Series, including wiring and operation.

External Signaling with the RY-AC/A Relay on the LEF Series

How to use the RY-AC/A External Signaling Relay with the LEF Series. You can also see the attached instructions.

Video: LEF Series Volume Control

This video goes over how adjust communication and chime volumes on an LEF Series answering station.

LEF Series with 8-Ohm Speaker

This video goes into how to add an 8-Ohm speaker in place of a door station on the LEF Series.

Common Issues

Reducing Radio Frequency Interference

General LEF Wiring Diagrams

External Signaling on the LEF Series

Modification External signaling device connected to the LEF Series. Difficulty Level 2 – Easy/Moderate – component connection to external points Components Required RY-AC/A : external signaling relay External signaling device and its own power supply (not supplied by Aiphone) Instructions If only one sub station is to have the capability of activating the external device: […]

Using Relay Contacts with the LEF Series

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LEF Series

4 LE-D, 2 LEF-10

4 LE-DA, 2 LEF-10

7 LE-B, 3 LEF-10

10 LE-D, 3 LEF-10

5 LE-A, 1 LEF-10

3 LE-A, 1 LEF-10

1 LEF-10, 1 External Speaker with Call Button

6 LE-D, 1 LEF-10

8 LE-D, 1 LEF-10C, 2 Wire

8 LE-D, 1 LEF-10

4 LE-A, 1 LEF-10

8 LE-D, 2 LEF-10

6 LE-D, 4 LEF-10C

2 LE-D, 4 LEF-10C

9 LE-D, 2 LEF-10

6 LE-D, 2 LEF-10

1 LE-D, 3 LEF-10

1 LE-BN, 2 LE-D, 4 LEF-10

10 LE-D, 2 LEF-10

2 LE-D, 5 LEF-10

1 LEF-10, 7 External Speakers

9 LE-A, 1 LEF-10

1 LE-D, 6 LEF-10

1 LE-D, 10 LEF-10

3 LE-B, 2 LE-DA, 2 LEF-10C

4 LE-D, 3 LEF-10, Door Call Only

6 LE-D, 4 LEF-10, Door Call Only

10 LEF-10

8 LE-A, 1 LEF-10

7 LE-A, 1 LEF-10

1 LE-A, 1 LEF-10

5 LE-D, 1 LEF-10

4 LE-D, 3 LEF-10

6 LE-D, 3 LEF-10

6 LE-A, 1 LEF-10

10 LE-A, 1 LEF-10S

9 LE-A, 4 LEF-10

11 LEF-10

3 LE-D, 8 LEF-10

8 LEF-10

7 LEF-10

3 LE-D, 1 LEF-10

6 LEF-10

5 LE-D, 5 LEF-10

9 LEF-10

10 LE-D, 1 LEF-10

10 LE-A, 1 LEF-10

1 LE-D, 4 LEF-10C