Typically, the operating voltage of a fail-safe electric strike lock is 12V DC or 24V DC. For example, The ES-100B and ES-110 B of S4A Access Control also have an operating voltage of 12V DC, and the ES-120B can be customized to 24V. 

Whether an additional power supply is needed depends on the specific situation:

When Integrated with an Access Control System

1. If the access control system has a built-in power supply with the appropriate voltage and sufficient power output to support the electric strike lock, then no additional power supply is required. For example, some advanced access control systems have a 12V or 24V power output interface, which can directly supply power to the fail-safe electric strike lock connected to it.

2. If the access control system's power supply does not match the voltage requirements of the electric strike lock or lacks sufficient power, an additional power supply needs to be added.

Standalone Installation

If the fail-safe electric strike lock is used independently without being integrated into an access control system, an external power supply must be provided to ensure its normal operation. The power supply needs to meet the voltage and current requirements of the lock.

Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED

If the electric strike lock malfunctions, the following steps can be taken for repair or part replacement:

Troubleshooting the Malfunction

1. Check the Power Supply

    The first step is to ensure that the electric strike lock is receiving power. Use a multimeter to test the voltage at the power input terminals of the lock. If it's a 12V or 24V lock and the measured voltage is significantly lower or non - existent, check the power source, such as the transformer or the battery backup (if applicable). The power supply wires may also be damaged or loose. Inspect the wiring connections from the power source to the lock and tighten any loose connections.

2. Inspect the Wiring

    Examine the wires connecting the electric strike lock to the access control system. Look for signs of damage, such as cuts, frayed wires, or loose connections. If the wires are damaged, they may need to be replaced. In some cases, improper wiring during installation can lead to malfunction. Make sure the wiring is correctly connected according to the manufacturer's instructions, especially the signal wires (for activation and feedback).

3. Verify the Access Control Signal

    If the power supply and wiring seem fine, the problem may lie in the access control signal. Check if the access control system is sending the correct signal to the electric strike lock. Some access control systems have diagnostic tools or logs that can help identify if a signal is being sent when access is supposed to be granted. If the signal is not reaching the lock, there may be a problem with the control panel, relays, or communication between the system and the lock.

4. Examine the Lock Mechanism

    Sometimes, the problem is with the internal lock mechanism itself. The solenoid, which is responsible for retracting the latch, may be jammed or damaged. Listen for any unusual clicking or grinding noises when the lock is supposed to activate. If the solenoid is jammed, it may need to be disassembled and cleaned or replaced. Also, check the latch and striker plate for proper alignment. If they are misaligned, it can prevent the lock from functioning correctly.

Repair and Part Replacement

1. Replacement of Small Components

    If the problem is identified as a faulty component such as a solenoid or a micro - switch, you can usually obtain replacement parts from the manufacturer or an authorized distributor. To replace a solenoid, first, disconnect the power and carefully remove the housing of the electric strike lock. Locate the solenoid and disconnect the wires connected to it. Then, remove the old solenoid and install the new one, making sure to reconnect the wires correctly.

2. Replacement of the Entire Lock

    If the damage to the electric strike lock is extensive or if it's an older model and replacement parts are not readily available, it may be more practical to replace the entire lock. When replacing the lock, make sure to choose a compatible model that matches the voltage, size, and functionality requirements of your access control system. Follow the installation instructions provided by the manufacturer to install the new lock properly. This includes drilling new holes (if necessary), running wires, and setting up the access control connections.

3. Seeking Professional Help

    If you are unsure about how to repair or replace parts of the electric strike lock, it's advisable to seek professional assistance. A locksmith with experience in electronic access control systems or an authorized service technician from the lock manufacturer can diagnose and fix the problem more accurately. They have the necessary tools and expertise to handle complex repairs and ensure that the lock is installed and functioning correctly.

Author: Written by Ms.Anna Zhang from S4A INDUSTRIAL CO., LIMITED

If the TTLock Hotel Access Control malfunctions or fails to unlock, you can try the following solutions:

General Troubleshooting Steps

1. Check the Batteries: Low battery power is a common cause of malfunctions. Replace the batteries in the lock with new ones and try unlocking again.

2. Check Bluetooth Connection: Make sure your smartphone's Bluetooth is turned on and within range of the lock. If the connection is weak or interrupted, try moving closer to the lock or restarting your phone's Bluetooth.

3. Update the App: Ensure that you are using the latest version of the TTLock app. Sometimes, bugs in the app can cause unlocking issues, and updating it may resolve the problem.

4. Restart the Lock: Locate the reset button on the lock, usually on the interior side. Press and hold the reset button for a few seconds until you hear a beep or see the lock restart. Then try unlocking again through the app.

Emergency Unlocking Methods

1. Use a Backup Key: Some TTLock hotel access control systems come with backup keys. Check if your lock was supplied with backup keys and use them to unlock the door in case of emergencies.

2. Use the Keypad: If your lock has a keypad, you can try entering the password or PIN code to unlock the door. Make sure you enter the correct code and press the enter or lock button to complete the unlocking process.

3. Contact Hotel Staff: If you are a guest and unable to unlock the door using the above methods, contact the hotel front desk or staff immediately. They have master keys or other means to assist you in unlocking the door.

In modern communication networks, fiber optical switches serve as the core devices for data transmission. Their stability and reliability are crucial to the operation of the entire network system. To ensure sustained high-efficiency and fault-free performance, regular maintenance of fiber optical switches is indispensable. What specific maintenance tasks are required for these devices?

I. Environmental Monitoring and Cleaning

First, the operational environment of fiber optical switches directly impacts their performance. Regularly inspecting temperature, humidity, and dust accumulation in the equipment’s surroundings is essential. Extreme temperatures, humidity fluctuations, or dust buildup can damage the switch, impairing heat dissipation and signal quality. Use professional cleaning tools and materials to avoid secondary damage during dust removal.

II. Port Inspection and Maintenance

Fiber switch ports are gateways for data transmission, and their condition directly affects throughput efficiency. Maintenance personnel should regularly check for loose, contaminated, or damaged ports to ensure proper fiber jumper connections. Additionally, periodically test long-idle ports to prevent aging or failure due to prolonged disuse.

III. Firmware Upgrades and Configuration Checks

As technology evolves, fiber switch firmware (embedded software) is updated to fix vulnerabilities, enhance performance, and add new features. Regularly review and update firmware to stay current. 同时，verify configuration settings to ensure parameters align with network requirements, minimizing risks of misconfiguration-induced outages.

IV. Performance Monitoring and Troubleshooting

Leverage professional network management tools for real-time performance monitoring, including bandwidth utilization, packet loss, and latency. Detect anomalies promptly and initiate troubleshooting through log analysis and port testing to maintain service continuity.

V. Security Hardening and Backup

In an era of escalating cyber threats, security maintenance for fiber switches is critical. Beyond physical security, regularly update security policies like Access Control Lists (ACLs) and port security settings to prevent unauthorized access. Additionally, back up critical configurations and data to ensure rapid network recovery.

As a leading Chinese manufacturer of optical communication equipment, FiberWDM is dedicated to delivering high-reliability, low-latency, and scalable fiber switching solutions worldwide. Our product portfolio includes full specifications such as 1×1, 1×2, 1×4, 1×8, 2×2, 2×8, and 4×4 switches. Built with compact designs and industrial-grade materials, they meet diverse needs in data centers, 5G base stations, smart grids, and more. Notably, our switches support deep customization, tailoring parameters and interfaces to perfectly match unique network architectures.

For customized fiber switching solutions, contact FiberWDM’s technical team at: sales@fiberwdm.com