USER MANUAL W75 Mini MC Yealink
• W75B Overview
Defining the Device Role
Below is the LED status of the W75 Mini MC after it is connected to the power supply and network and successfully registered to the Mini MC system.
| Base Mode | Role LAN LED | ROLE LED DECT LED | |
| 1 Primary DM+Base Green | Orange Green | | |
| 2 Secondary DM+Base Green | Green Green Green | | |
| 3 Base Green Off Green | | | |
Note: The W75 Mini MC only supports one secondary DM, and the subsequent we will support two secondary DM to make the system more stable.
Deploying the Device
You can connect the W75 Mini MC to your local network via a router or PoE switch.
- Deploy one W75 Mini MC
- Plug a POE or network cable + power supply that comes with the W75DM into the network and power port of the W75B. As shown in Figures 1, 2, 3, 4.
![graph TD A["Front Panel"] --> B["Assembly Step 1"] B --> C["Assembly Step 2"] C --> D["Assembly Step 3"] D --> E["Final Assembly with Internal Components Disassembly"] E --> F["Final Breakdown with Component Disassembly"]](/content/2026/04/683745/images/3ea9db058f5ba1c4e9b107951534d7939a450d148bc4f2704887be2e6b0cca75.jpg)
- Connect the power and the network cable using method A or method B.
A. AC Power Option
B. PoE (Power over Ethernet) Option
- At this time, the LED indicator status are as follows:
Note:
- If you choose method A, use Yealink supplied power adapter (5V/1.2A). A third-party power adapter may damage the device.
- If you choose method B, you do not need to connect the power adapter. Make sure the hub/switch is PoE-compliant.
Deploying the Device
- Deploy two or three W75 Mini MC
- Connect all W75 Mini MC to a POE or network cable + power supply to make the W75 Mini MC start normally. Please refer to Deploy one W75 Mini MC to connect the DM to the Base. The LED indicator status are as follows:
- Select a W75 Mini MC as the primary DM and the primary Base (Figure "A"). Remember the MAC address of the primary base, so that you can quickly find the primary base later.
- Press and hold the Base button of the rest of W75 Mini MC (Figure "B/C") for 10s to enter the DM role switching. The LED indicator status are as follows:
- Press the Base button (Figure "B/C"). At this time, the LED indicator status are as shown in Figure "B/C - 1".
After 3s, the DM reboots and switches to secondary DM, and the LED indicator status are as shown in Figure "B/C - 2".
Then disconnect the W75 Mini MC (Figure "B/C") from a POE or network cable + power supply.
Deploying the Device
- Remove the primary DM and Base, and then insert the network cable and power cable of the DM into the ports of the W75 Mini MC (Figure "B/C").
Primary W75 Mini MC
![graph TD A["Device 1"] --> B["Device 2"] B --> C["Device 3"] C --> D["Device 4"] D --> E["Device 5"] style A fill:#f9f,stroke:#333 style B fill:#ccf,stroke:#333 style C fill:#cfc,stroke:#333 style D fill:#fcc,stroke:#333 style E fill:#ffc,stroke:#333](/content/2026/04/683745/images/5559dc38c87b54f4d86f917356b06bbc07796905f10be1f24cf547147819778b.jpg)
1
![graph TD A["Primary DM"] --> B["B"] A --> C["C"] B --> D["Storage Tank 1"] B --> E["Storage Tank 2"] C --> F["Storage Tank 3"]](/content/2026/04/683745/images/fb694ebc898d805fb88f4a1ecf4e00135211ac4b8086660b05ac943a90e89d95.jpg)
2
- When the indicator changes to the following, the secondary W75 Mini MC has been successfully registered with the main DM system. Then disconnect the W75 Mini MC (Figure "B/C") from the primary W75 DM.
Note: If it turns off after 3s, it means that the secondary DM and base are registered. And the base can be unplugged after the LED indicator is off.
- After the three W75 Mini MC are connected to the network and powered on, the LED indicator status are as shown in the following.
Note: During the deployment process, the primary DM needs to keep the POE or network cable + power supply connected.
Mounting the Device
After connecting the cable you can place it to the destined location.
- Mount one W75 Mini MC
- Mount two or three W75 Mini MC
![graph TD A["Primary DM+Base"] --> B["Secondary DM+Base"] A --> C["Secondary DM+Base"] A --> D["Secondary DM+Base"] style A fill:#f9f,stroke:#333 style B fill:#ccf,stroke:#333 style C fill:#cfc,stroke:#333 style D fill:#fcc,stroke:#333](/content/2026/04/683745/images/247026eb0452a5f21fd0b50bf92e376cfd645047780d41e22fbcaf02da40d7f2.jpg)
Note: In the case of wall-mounted deployment, the main W75 Mini MC (A) needs to be deployed in the middle, and the secondary W75 Mini MC (B/C) needs to be deployed around.
Accessing the Web User Interface
If you want to deploy the system through the web page, you can log in to the web page in the following ways. For more information, please refer to the Admin Guide.
- Find the current IP address of the device on the DHCP server in the list of registered DHCP clients.
- Open a web browser on your computer, enter the IP address into the address bar (for example, "https://192.168.0.10" or "192.168.0.10"), and then press the Enter.
- Enter the user name (default: admin) and password (default: admin) in the login page and click Login.
Security Center
Our product contains some source code that may be used and modified by anyone and everyone under the GNU Public License (GPL), provided they, in turn, make it available to everyone else with the same licensing agreement.
Please visit https://support.yealink.com/ or scan the QR-code below and go to Help Desk > Open Source Software of Yealink IP Phones for the original GPL license and the source code of components licensed under GPL and used in Yealink products.
Regulatory Notices
Operating Ambient Temperatures
- Operating temperature: +32 to 104°F (0 to 40°C)
•Relative humidity: 5% to 90%, noncondensing
• Storage temperature: -22 to +160°F (-30 to +70°C)
Warranty
Our product warranty is limited only to the unit itself, when used normally in accordance with the operating instructions and the system environment. We are not liable for damage or loss resulting from the use of this product, or for any claim from a third party. We are not liable for problems with Yealink device arising from the use of this product; we are not liable for financial damages, lost profits, claims from third parties, etc., arising from the use of this product.
Explanation of the symbols
DC symbol
is the DC voltage symbol.
WEEE Warning symbol
To avoid the potential effects on the environment and human health as a result of the presence of hazardous substances in electrical and electronic equipment, end users of electrical and electronic equipment should understand the meaning of the crossed-out wheeled bin symbol. Do not dispose of WEEE as unsorted municipal waste and
have to collect such WEEE separately.
Restriction of Hazardous Substances Directive (RoHS)
This device complies with the requirements of the EU RoHS Directive. Statements of compliance can be obtained by contacting support@yealink.com.
Safety Instructions
Save these Instructions. Read these safety instructions before use!
General Requirements
Before you install and use the device, read the safety instructions carefully and observe the situation during operation.
- During the process of storage, transportation, and operation, please always keep the device dry and clean, avoid collision and crash.
- Please attempt not to dismantle the device by yourself. In case of any discrepancy, please contact the appointed maintenance center for repair.
- Please refer to the relevant laws and statutes while using the device. Legal rights of others should be respected as well.
Environmental Requirements
Place the device at a well-ventilated place. Do not expose the device under direct sunlight.
- Keep the device dry and free of dusts.
- Do not place the device on or near any inflammable or fire-vulnerable object, such as rubber-made materials.
- Keep the device away from any heat source or bare fire, such as a candle or an electric heater.
Operating Requirements
- Do not let a child operate the device without guidance.
- Do not let a child play with the device or any accessory in case of accidental swallowing.
- Please use the accessories provided or authorized by the manufacturer only.
- The power supply of the device shall meet the requirements of the input voltage of the device. Please use the provided surge protection power socket only.
- Before plugging or unplugging any cable, make sure that your hands are completely dry.
- Do not spill liquid of any kind on the product or use the equipment near water, for example, near a bathtub, washbowl, kitchen sink, wet basement or near a swimming pool.
- During a thunderstorm, stop using the device and disconnect it from the power supply. Unplug the power plug and the Asymmetric Digital Subscriber Line (ADSL) twisted pair (the radio frequency cable) to avoid lightning strike.
- During a thunderstorm, stop using the device and disconnect it from the power supply. Unplug the power plug and the Asymmetric Digital Subscriber Line (ADSL) twisted pair (the radio frequency cable) to avoid lightning strike.
- If the device is left unused for a rather long time, disconnect it from the power supply and unplug the power plug.
- When there is smoke emitted from the device, or some abnormal noise or smell, disconnect the device from the power supply, and unplug the power plug immediately.
About Yealink
Yealink (Stock Code: 300628) is a global brand that specializes in video conferencing, voice communications and collaboration solutions with best-in-class quality, innovative technology and user-friendly experience. As one of the best providers in more than 140 countries and regions, Yealink ranks No.1 in the global market share of SIP phone shipments (Global IP Desktop Phone Growth Excellence Leadership Award Report, Frost & Sullivan, 2019).
Technical Support
Visit Yealink WIKI (http://support.yealink.com/) for firmware downloads, product documents, FAQ, and more. For better service, we sincerely recommend you to use Yealink Ticketing system (https://ticket.yealink.com) to submit all your technical issues.
- Contact the specified maintenance center for repair.
- Do not insert any object into equipment slots that is not part of the product or auxiliary product.
- Before connecting a cable, connect the grounding cable of the device first. Do not disconnect the grounding cable until you disconnect all other cables.
Cleaning Requirements
Before cleaning the device, disconnect it from the power supply.
- Use a piece of soft, dry and anti-static cloth to clean the device.
- Keep the power plug clean and dry.
Troubleshooting
The unit cannot supply power to device other than Yealink device. There is a bad connection with the plug.
- Clean the plug with a dry cloth.
- Connect it to another wall outlet.
The usage environment is out of operating temperature range.
-
Use in the operating temperature range.
The cable between the unit and the Yealink device is connected incorrectly.
-
Connect the cable correctly.
You cannot connect the cable properly.
-
You may have connected a wrong Yealink device.
-
Use the correct power supply.
Some dust, etc., may be in the port.
- Clean the port.
Contact your dealer or authorized service facility for any further questions.
FCC Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
IC Statement
This device complies with Industry Canada's licence-exempt RSSs. Operation is subject to the following two conditions:
(1) this device may not cause interference; and
(2) this device must accept any interference, including interference that may cause undesired operation of the device. CAN ICES 3(B)
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes :
Radiation Exposure Statement
This equipment complies with FCC and IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.
No.666 Hu'an Rd, Hull District Xiamen City, Fujian, P.R.C
YEALINK (EUROPE) NETWORK TECHNOLOGY B.V.
Sir Winston Churchillin 299 k, 2288DC Rijswijk
YEALINK (USA) NETWORK TECHNOLOGY CO., LTD.
999 Peachtree Street Suite 2300, Fulton, Atlanta, GA, 30309, USA
Made in China
Verpackungsinhalt
W75 Mini MC
1
4
3
B. Option Power-over-Ethernet (PoE)
309, 3rd Floor, No. 16, Yun Ding North Road, Huli District, Xiamen City, Fujian, VR China
YEALINK (EUROPE) NETWORK TECHNOLOGY B.V.
Strawinskylaan 3127, Atrium Building, 8th floor, 1077ZX Amsterdam, Niederlande
YEALINK (USA) NETWORK TECHNOLOGY CO., LTD.
999 Peachtree Street Suite 2300, Fulton, Atlanta, GA, 30309, USA
Remarque:
309, 3rd Floor, No.16, Yun Ding North Road, Huli District, Xiamen City, Fujian, P.R.C YEALINK (EUROPE) NETWORK TECHNOLOGY B.V.
Strawinskylaan 3127, Atrium Building, 8th floor, 1077ZX Amsterdam, The Netherlands
YEALINK (USA) NETWORK TECHNOLOGY CO., LTD.
999 Peachtree Street Suite 2300, Fulton, Atlanta, GA, 30309, USA
Made in China
Below is the LED status of the W75 Mini MC after it is connected to the power supply and network and successfully registered to the Mini MC system.
| Opciones de modo | Role LAN LED | ROLE LED | DECT LED | |
| 1 DM + Base Primaria Verde Naranja Verde | |
| 2 DM + Base Secundaria Verde Verde Verde | |
| 3 Base Verde Off Verde | | | |
• Montar dos o tres W75 Mini MC
![graph TD A["DM+Base Secundaria"] --> B["Vase"] B --> C["I/O"] C --> D["DM+Base Primaria"] D --> E["Vase"] E --> F["I/O"] F --> G["DM+Base Secundaria"] style A fill:#f9f,stroke:#333 style G fill:#bbf,stroke:#333](/content/2026/04/683745/images/069083015573cf700537b2fd939575b13ce1dabe275913c0ce4649798fea4d49.jpg)
Yealink (Stock Code: 300628) is a global brand that specializes in video conferencing, voice communications and collaboration solutions with best-in-class quality, innovative technology and user-friendly experience. As one of the best providers in more than 140 countries and regions, Yealink ranks No.1 in the global market share of SIP phone shipments (Global IP Desktop Phone Growth Excellence Leadership Award Report, Frost & Sullivan, 2019).
Technical Support
Visit Yealink WIKI (http://support.yealink.com/) for firmware downloads, product documents, FAQ, and more. For better service, we sincerely recommend you to use Yealink Ticketing system (https://ticket.yealink.com) to submit all your technical issues.
