WIRING DIAGRAM: C-123L/A System with External Signaling using RY-AC Relay

 

Component

C-D

Module* C-ML/A

1

1

E

 

SKK-620

E

12V DC

 

 

 

 

 

 

 

 

 

 

power supply

WHITE

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE:Negatives of

+

 

+

 

+

RED

 

 

 

 

 

power supplies must

-

 

-

-

BLACK

 

be tied together.

 

 

 

RY-AC

Output of RY-AC (Yellow wires) provide a momentary dry contact closure while the call button on the door station is being pressed.

BELL

YELLOW

YELLOW

Power source

for bell

Normally Open Dry Contact to door

strike and power

L L

Component Module*

If a DAK-2S is not available, install components as shown below. Capacitor: 25V, 15-33mfd Non-polarized (Aiphone NP-25V) Diode: 1N 4148

To 1 of C-D and

WHITE wire of RY-AC To 1 of C-ML/A

MODIFICATION INSTRUCTIONS:

C-ML/A with Door Release contact Modified to Normally Closed (for Magnetic Lock)

C-ML/A Rear View with PC board removed.

Magnetic locks require Normally Closed contacts, keeping power applied to the magnet to keep the door locked, and breaking power to release the door. These instructions explain how to change the contact in the C-ML/A to Normally Closed.

1.Remove back chassis of C-ML/A and move PC-754 aside. Black door release switch will be visible.

2.On the switch, move* the wire from the NO contact (middle position) to the NC contact (top position).

*Desoldering and resoldering is required.

3.This modification will change the door release button's function to Normally Closed, to be used with a magnetic lock device.

4.Switch contact rating is 1A at 50V AC.

60H-2A 8 THA1 547

-+

Door release

switch

NC

NO

COM

C-123LW Supplement Pg. 3

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Aiphone C-123LW Modification Instructions, Ry-Ac, Bell, Component Module, ML/A Rear View with PC board removed
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C-123LW specifications

The Aiphone C-123LW is an innovative intercom system designed for both residential and commercial settings. Known for its reliability and user-friendly features, this intercom enhances communication and security within various environments. Its sleek design and advanced technology make it a popular choice among consumers seeking quality communication solutions.

One of the standout features of the Aiphone C-123LW is its ability to support two-wire communication. This technology enables easy installation, as it requires minimal wiring, making it a cost-effective option for users looking to set up an intercom system without extensive renovations. The two-wire system not only simplifies the installation process but also reduces the overall expenses associated with wiring.

The intercom system is equipped with a high-quality speaker and microphone, ensuring crystal clear audio during conversations. Users can enjoy hands-free communication, which is particularly useful in busy environments, where multitasking is necessary. The built-in volume control allows users to adjust the audio levels to their preferences, ensuring optimal sound quality in different settings.

Another notable characteristic of the Aiphone C-123LW is its robust call functionality. Featuring a door release option, users can remotely control access to their premises, enhancing security. This feature is particularly valuable for residential users who want to manage entry points without having to physically open the door. The intercom also includes visual indicators, letting users know when someone is calling, which adds an extra layer of convenience.

The Aiphone C-123LW intercom system conforms to the latest technology standards, ensuring compatibility with other devices and systems. It can be integrated with video systems, allowing users to not only communicate audibly but also see who is at the door. This multimedia functionality greatly enhances security and control, catering to modern consumer needs.

Durability is another advantage of the Aiphone C-123LW. Constructed with high-quality materials, it is designed to withstand the daily wear and tear of use in various environments. Its aesthetic design fits seamlessly into any décor, whether it's a home or an office setting.

In summary, the Aiphone C-123LW intercom system stands out for its reliable two-wire communication, superior audio quality, and integrated security features. Its adaptability to different environments and user-friendly functionality make it a top contender among intercom options, ensuring effective communication while enhancing security for all users.
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