QR Readers & Terminals
QR reader
A QR reader with Ethernet and a relay interface for 86-box installations. Connect phone or paper credentials to your application, then configure how a validated response controls the next step.
Inside FC7769
FC7769 combines QR reading, an Ethernet connection and a relay interface in a compact wall installation. A phone or paper code becomes input for your access application. Configure the server connection and response behaviour together so the system can turn a valid credential into the intended action.
Plan the installation
Choose around your project
The manual describes TCP, HTTP and HTTPS communication. Match the server address, protocol, credential payload and response handling to the supplied firmware.
The manual identifies COM and NO relay connections. Check the lock or control input, supply and load requirements with the installer before selecting the circuit.
The manual describes configuration through a generated QR code. Request the applicable configuration tool and firmware reference for the unit being evaluated.
From credential to action
The relay is part of the hardware interface. Credential validity, timing and behaviour when the server cannot be reached must be defined and tested with your application.
A user presents a phone-screen or printed code to the reader.
The configured network exchange lets your application validate the credential and apply its access rules.
The configured device and relay behaviour carries out the result. Verify allowed, denied and network-unavailable cases during commissioning.
Example workflow · confirm the configuration and wiring for the supplied equipment.
Technical details
Options vary by configuration. Use these details to plan your evaluation.
| Code sources | Phone-screen and printed QR codes |
|---|---|
| Network | Ethernet; TCP, HTTP and HTTPS communication described in the manual |
| Control interface | Relay COM / NO; match the circuit and firmware configuration |
| Dimensions | 86 × 86 × 39 mm |
| Mounting | 86-box assembly with mounting frame and front trim |
| Power input | 9–15 V DC |
Installation & connections
Product resources
Manual · English · PDF · 680 KB
The source manual uses the MET hardware designation.
Do not assume so. Reader firmware and access-control firmware can use different tools, configuration codes or platform commands. Share the overseas model, firmware and intended operating mode so the matching method can be checked before changing settings.
Transparent output normally forwards the decoded content, while a protocol-based connection can wrap it with device or transaction data and may require a defined response from the server. The available transports and response rules vary by product and firmware, so use the matching integration reference.
First confirm that the reader has started normally and that the code is complete, correctly generated and presented within the usable reading area. For codes shown on a phone, raise the screen brightness and remove glare; if known-good codes still produce no response, record the indicator and buzzer behavior for support.
Your next step
Tell us where it will be used, how it should connect and the quantity you need.
Continue exploring
Allow Google Analytics to help us understand traffic sources, page visits, submitted inquiries, document clicks, email-link clicks and visits to Alibaba or WhatsApp. We do not send your name, email or inquiry message to Analytics.
Analytics stays off until you allow it. Your choice does not affect inquiries or videos you choose to play. You can change it here at any time.
Current choice: not selected.
Read the website privacy notice
