1. Introduzione
This manual provides detailed instructions for the installation, operation, and maintenance of the SDC CB402-B Communicating Bathroom Control and Emergency Access Switch. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Prodotto finitoview
The SDC CB402-B is a panel-mounted control switch designed for bathroom lock systems, providing both locking/unlocking functionality and emergency access. It features a clear indicator light for lock status.

Figure 1: SDC CB402-B Control Panel
This image displays the SDC CB402-B control panel. The panel is rectangular, silver-colored, and features the "SDC" logo at the top. Below the logo, text reads "BATHROOM LOCK" and "BOTH DOORS MUST BE CLOSED TO LOCK". A prominent red square button is located in the center. Below the button, text indicates "PUSH TO LOCK OR UNLOCK" and "LIGHT ON DOOR LOCKED". There are also two visible screws for mounting.
Caratteristiche principali:
- Integrated lock/unlock button.
- Visual indicator for door lock status.
- Designed for bathroom lock applications requiring two doors to be closed for locking.
- Panel mount design for secure installation.
3. Configurazione e installazione
Informazioni importanti sulla sicurezza: Installation should only be performed by qualified personnel in accordance with all local electrical codes and regulations. Disconnect power before beginning installation.
- Posizione di montaggio: Select a suitable indoor location for panel mounting, typically adjacent to the door frame or on a wall within easy reach.
- Cablaggio: The CB402-B requires electrical connections for power and communication with the locking mechanism. Refer to the wiring diagram provided with your specific lock system for correct connections. Ensure all connections are secure and insulated. The unit utilizes an X-10 connectivity protocol for communication, which must be integrated with a compatible system.
- Montaggio a pannello:
- Prepare the wall opening according to the dimensions specified in the product packaging.
- Feed the necessary wiring through the opening.
- Secure the CB402-B panel to the wall using appropriate screws (as shown in Figure 1). Do not overtighten.
- Integrazione del sistema: Connect the CB402-B to your bathroom lock system and power supply as per the system's instructions. Verify all connections before restoring power.
- Test iniziale: After installation, restore power and perform a functional test to ensure the lock/unlock button and status indicator light operate correctly.
4. Funzionamento
The SDC CB402-B is designed for straightforward operation:
- Chiusura della porta: To lock the bathroom door(s), ensure "BOTH DOORS MUST BE CLOSED TO LOCK" as indicated on the panel. Press the red square button labeled "PUSH TO LOCK OR UNLOCK".
- Sblocco della porta: To unlock the bathroom door(s), press the red square button again.
- Indicatore di stato: The panel includes a light indicator. When the "LIGHT ON DOOR LOCKED" is illuminated, it signifies that the door(s) are securely locked.
5. Manutenzione
The SDC CB402-B requires minimal maintenance to ensure continued reliable operation:
- Pulizia: Periodically wipe the surface of the control panel with a soft, dry cloth. Avoid using abrasive cleaners or solvents, which can damage the finish or internal components.
- Ispezione: Regularly inspect the panel for any signs of physical damage, loose connections, or wear.
- Controllo della funzionalità: Periodically test the lock/unlock function and the status indicator light to ensure they are working correctly.
6. Risoluzione Dei Problemi
If you encounter issues with your SDC CB402-B, consider the following:
- Il pulsante non risponde:
- Check if the power supply to the unit and the associated lock system is active.
- Verify all wiring connections are secure and correct according to the installation diagram.
- Ensure both doors are fully closed if the system requires this condition for locking.
- Status Light Not Illuminating:
- Confirm the door is actually locked.
- Controllare l'alimentazione e il cablaggio.
- If the light is still not working, the indicator bulb or LED may need replacement, or there might be an internal fault. Contact SDC support.
- Funzionamento intermittente: This could indicate loose wiring or an issue with the X-10 communication. Re-check all connections and ensure there is no interference with the X-10 signal.
For persistent issues, contact SDC technical support.
7. Specifiche
| Specificazione | Dettaglio |
|---|---|
| Modello | Codice articolo: CB402-B |
| Marca | SDC (Security Door Controls) |
| Peso dell'articolo | 1 libbra |
| Tipo di montaggio | Montaggio a pannello |
| Protocollo di connettività | X-10 |
| Conteggio unità | 1 Conteggio |
| Dimensioni | 2-7/8 inches W (Width) - Other dimensions not specified. |
8. Garanzia e supporto
For information regarding the product warranty, please refer to the official SDC (Security Door Controls) websito o contattare direttamente il servizio clienti. I termini e le condizioni di garanzia possono variare.
For technical support or further assistance, please visit the SDC Security websito or contact their authorized distributors.





