1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your WNKRUN Wireless Calling System. This system is designed to enhance communication efficiency in various environments such as restaurants, hotels, and care facilities. It includes a central display unit, multiple call buttons, and watch pagers for staff.
Package Contents
The WNKRUN Wireless Calling System typically includes the following components:
- 1 x Call Number Display (Model CS-400D)
- 15 x Waterproof Call Buttons (Model CS-M2)
- 2 x Watch Pagers (Model CS-200E)
- 1 x Signal Amplifier (Optional, may vary by package)
- 1 x Remote Control for Display Unit
- Power Adapters for Display and Amplifier
- User Manual (This document)

2. Setup
2.1 Display Unit (CS-400D) Installation
- Placement: Position the display unit in a central location visible to staff. Ensure it is within range of the call buttons and watch pagers.
- Power Connection: Connect the provided power adapter to the DC 12V input port on the display unit and plug it into a standard electrical outlet.
- Antenna: Attach the antenna to the designated port on the display unit for optimal signal reception.

2.2 Call Button (CS-M2) Placement
Place the waterproof call buttons at each service point (e.g., tables, patient bedsides). Use the double-sided adhesive provided for secure mounting.

2.3 Watch Pager (CS-200E) Preparation
- Charging: Before first use, fully charge the watch pagers using the provided USB charging cable. The watch has a built-in rechargeable lithium battery with up to 72 hours of standby time.
- Wearing: Adjust the soft silicone strap for a comfortable fit on the wrist.

2.4 Signal Amplifier (Optional)
If the signal distance is insufficient due to environmental factors like walls, a WNKRUN signal amplifier can be added. Connect the amplifier to a power source and position it between the call buttons and the display/watch pagers to extend the range and stabilize the signal.

3. Operating Instructions
3.1 Placing a Call
To request service, a guest or patient simply presses the CALL button on the CS-M2 call button. The button will typically illuminate briefly to confirm the signal has been sent.
3.2 Receiving a Call
Calls are received on both the central display unit and the watch pagers.
- Display Unit (CS-400D): The display will show the number or identifier of the calling button. It supports three display modes: single group, four groups, or eight groups simultaneously. The system can also broadcast the table number audibly.
- Watch Pager (CS-200E): The watch pager will vibrate and display the calling number. The watch provides a vibration reminder only, without a ringtone.

3.3 Display Modes and Settings
The CS-400D display unit offers flexible display options and settings:
- Display Modes: Choose between single, 4-group, or 8-group display modes to suit your operational needs.
- Volume Control: Adjust the volume from 0 (mute) to 9 levels.
- Language Support: The system supports English, Japanese, German, and Spanish.
- Remote Control: Use the included remote control to easily adjust settings, page up/down digits, and confirm selections.
3.4 System Combinations
The WNKRUN system supports various configurations:
- One-to-One: A single call button paired with a single receiver (display or watch).
- One-to-Many: A single call button paired with multiple receivers.
- Many-to-One: Multiple call buttons paired with a single receiver.
- Many-to-Many: Multiple call buttons paired with multiple receivers.

4. Maintenance
4.1 Call Button Battery Replacement
The CS-M2 call buttons use CR2032*2 batteries. To replace them:
- Use a screwdriver to open the four screws on the back cover.
- Carefully open the back cover and remove the old batteries.
- Insert new CR2032 batteries, ensuring correct polarity.
- Replace the back cover and secure the screws.

4.2 Watch Pager Charging
Recharge the CS-200E watch pagers regularly using the provided USB cable to ensure continuous operation. A full charge provides up to 72 hours of standby time.
4.3 Cleaning
Wipe all components with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners. Ensure the call buttons are dry after cleaning, especially given their waterproof rating.
5. Troubleshooting
Refer to the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No signal received on display/watch pager. | Out of range, low battery in call button, interference. | Check call button battery. Ensure devices are within operational range. Consider adding a signal amplifier. |
| Short signal distance. | Environmental obstructions (walls), interference. | Add a WNKRUN signal amplifier to extend range. Reposition devices to minimize obstructions. |
| Display unit not powering on. | Power adapter disconnected or faulty. | Check power adapter connection and ensure it's plugged into a working outlet. |
| Watch pager not charging. | USB cable or charging port issue. | Ensure USB cable is properly connected. Try a different USB port or charger. |
| Multiple display receivers needed. | System configuration. | The system supports multiple display receivers with all call buttons simultaneously (many-to-many configuration). Ensure all units are properly paired. |
6. Specifications
| Feature | Specification |
|---|---|
| Brand | WNKRUN |
| Model Number | 400D-M2-15-200E-2-160A |
| Display Unit Model | CS-400D |
| Call Button Model | CS-M2 |
| Watch Pager Model | CS-200E |
| Voltage | 12 Volts (DC) |
| Control Method | Remote, Touch |
| Mounting Type | Tabletop Mount (Display) |
| UPC | 755749783881 |
| Item Weight | 4.09 pounds (total package) |
| Call Button Batteries | 15 CR2032 batteries required (included) |
| Watch Pager Battery | Built-in rechargeable Lithium-Ion |
| Watch Pager Standby Time | Up to 72 hours |
| Call Button Waterproof Level | IPX67 Fully Waterproof |
| Outdoor Range | Up to 500m / 1640ft (open area) |
| Indoor Range | 100-300m / 328-984ft (environment dependent) |
| Display Unit Capacity | Compatible with up to 400 call buttons (001 to ZZZ) |
7. Support
For any questions, technical assistance, or support regarding your WNKRUN Wireless Calling System, please contact our professional after-sales team. We are available to provide assistance and ensure your system operates effectively.
Please refer to the product packaging or the official WNKRUN website for specific contact information.