Plug-and-Play Digital Wired Conference System for Meeting Rooms

What is AVC Digital Wired Conference System?

Clear communication is essential in any professional meeting environment. From corporate boardrooms to government chambers, a well-designed Conference System ensures that every participant can speak, listen, and interact effectively.

AVC Digital Wired Conference System is built to simplify conference communication while maintaining excellent audio clarity and flexible expansion. Designed with Plug-and-Play (PnP) architecture, the system enables fast installation, stable performance, and seamless scalability for small to medium conference environments.

At the heart of the system is the AVC CU100 Central Control Unit, supported by the AVC CM100 Chairman Unit and AVC DM100 Delegate Unit, forming a complete wired Conference System solution for professional meetings.

A Simple Plug-and-Play Digital Wired Conference System

One of the key strengths of the AVC Digital Wired Conference System is its Plug-and-Play (PnP) design. Installers and system integrators can set up the system quickly without complicated configuration.

Plug-and-Play refers to a device or system that works immediately after being connected, without requiring complex configuration, programming, or manual setup.

In simple terms:

Connect → Power On → Use 

With the Plug-and-Play (PnP) connection structure, AVC conference units automatically work once connected to the controller, no complicated software configuration required.

Key benefits include:

• Quick installation with minimal setup

• Stable wired communication between units

• Easy expansion for larger meetings

• Reliable audio performance for professional discussions

• Lower installation cost

• Less technical expertise required

CU100 Central Control Unit - The Core of the System

AVC CU100 Central Control Unit serves as the main controller and power supply of the Digital Wired Conference System. It manages communication between the one chairman unit (CM100) and delegate units (DM100) while ensuring stable power distribution.

Each CU100 Central Unit features three trunks, with each trunk supporting up to 15 conference units. This allows a single controller to manage up to 45 conference units, making it suitable for typical meeting environments such as boardrooms, council chambers, and conference halls.

For larger installations, additional controllers can be added to expand the system capacity. The system supports up to 6 controllers, allowing a maximum of 255 conference units in total.

Key features of CU100 Central Control Unit include:

• Integrated controller and power supply

• Supports up to 45 conference units per controller with 3 trunks

• Expandable to 255 conference units by stacking multiple controllers

• Offers 6 conference modes to suit different meeting needs

• Balanced line audio output for external audio systems

• Input support for external audio sources such as PCs, DVD players

Technical Specs for CU100

Power supply	100 - 240V AC (50 / 60 Hz)
Frequency response	100 - 12.5 kHz
Input impedance	Line: 50k Ohm
Output impedance	RCA: 200 Ohm Line: 200 Ohm Balanced: 6.9k Ohm Unbalanced: 6.8k Ohm
S/N ratio	100 dB
Delegate Connections	3 trunks, up to 15 delegates/conference units per trunk
Maximum delegate connections	Up to 255 delegates (including chairman)
Maximum trunk length	40m (including main cable)
Connection cable	Molded 8-core shielded cable
Extension connection	Single 8-pin DIN extension, up to 6 units
Conference modes	6 modes: C-ONLY: Chairman-only speaking mode FIFO: First-in-first-out speaking order LIFO: Last-in-first-out speaking oroder LIMIT: Limits the maximum number of active delegates FREE: Free discussion mode (no speaking limit) U.SINGLE: Only one delegate can speak at a time
S/N ratio	100 dB
Dimensions (W x H x D)	482 x 44 x 220 mm
Net weight	2.20 kg
Accessory included	10m 8-pin shielded cable

Note: The specification parameters may be changed, added, or omitted without prior notice.

CM100 Chairman Unit & DM100 Delegate Unit

CM100 Chairman Unit and DM100 Delegate Unit are designed to ensure clear and efficient communication in conference environments. CM100 allows the chairman to manage discussions with priority speaking control, helping maintain orderly meeting flow, while the DM100 enables participants to communicate clearly. Both units feature an illuminated microphone and built-in speaker to ensure speech is clearly transmitted and heard throughout the meeting room.

CM100 Chairman Unit Features:

• Priority control which enable Chairman to override delegate discussions when necessary

• Cancellation function to quickly mute delegate microphones for better meeting control

Conference Units Features (CM100 & DM100):

• Easy plug-and-play setup

• 1W Built-in speaker delivery clear and high-quality audio

• Digital volume control for precise audio adjustments

• Headphone output jack for private listening

• LCD display with microphone countdown timer

• Offers 6 discussion modes to suit different meeting needs

• 420mm illuminated gooseneck microphone for clear speech delivery

• 2-meter extension cable for seamless connectivity to the next delegate unit

• Easy-to-use design for efficient operation

Technical Specs for CM100 & DM100

Microphone type	Condenser with LED ring
Polar pattern	Cardioid
Frequency response	30 Hz - 18 kHz
Sensitivity	-43 ± 3 dB @1 kHz
Input voltage	9V DC (Powered by controller)
Minimum input impedance	1 kOhm
S/N ratio	>68 dB
Pick up distance	30cm
Mic length	420mm
Output connector	8-pin DIN
Input / output cable	2m 8-pin shielded cable
Controls	Press-to-Talk (PTT) mic activation button Mic volume controls CM100 only: Priority button to override active delegates
Dimensions (W x H x D)	125 x 165 x 65 mm (Excluding mic)
Net weight	0.8kg

Note: The specification parameters may be changed, added, or omitted without prior notice.

System Integration

AVC CU100 Control Unit includes balanced audio outputs, allowing the Conference System to integrate easily with external audio equipment such as amplifiers and sound systems.

This enables the conference audio to be distributed to larger speaker systems when required, ensuring clear sound coverage across the entire meeting space.

Designed for Professional Meeting Environments

AVC Conference System is ideal for various professional environments, including:

• Corporate boardrooms

• Government meeting chambers

• Council halls

• Educational institutions

• Conference and training rooms

With its Plug-and-Play architecture and expandable design, the system can adapt to different room sizes and meeting requirements. Together, the CU100 Central Control Unit, CM100 Chairman Unit, and DM100 Delegate Unit create a dependable conference system designed for effective meeting communication.

Documents Available for Downloads

• Product Catalogue 24/25

• Instruction Manual (Mar 2026)

Have Questions?

Contact us at info@ampereselectronics.com for further inquiries.