English
Hebrew
Spanish
French
Italian
中文
Integration
Products
Solution
Projects
ServiceCentre
News
Keyking
Sphinx Integration Platform
Web Server
Smart Phone APP
Access Control
Time & Attendance
Patrol Online
EntryPOS
Car Parking
Parking Guidance
Library Management
Hotel Lock Management
Access Control
Elevator control
Proximity/Smart Reader
Biometric Reader
Face Recognition
Car Parking
Hotel Lock
POS
Turnstile
Accessories
Guard Patol
Converter
Environmental Control Equipment (ECE)
Face Recognition
Wireless Fingerprint Lock
Parking
Bank & Finance
House
School & University
Children School
Factory Solution
Enterprise Solution
Police
Power Station
Airport & Station
Bluetooth & QRCode
Trouble Shooting
Download
Contact Us
Keyking News
Security News
Products
About US
Certificate
Key Events
Sales Network
Join keyking
Your Position is:
Home
> ServiceCentre > Trouble Shooting
Trouble Shooting
Download
Contact Us
Hardware problems
System problems
No communication with RS-232 or RS-485 controllers
No communication with controllers
Communication with the controllers intermittent
The card number is different to what is expected
The lock cannot be locked.
Some of the controllers on the RS-485 LAN cannot communicate.
Converter cannot communicate with PC.
The controller cannot communicate with the converter.
With power on, the reader goes “BEEP” but the controller cannot process the information.
Cannot open the door when flashing the cards. (Check review event on PC first)
Reader range is too short.
LED on reader dead
Yellow power LED dead
Quick Links
About Us
Sales Network
Certificate
Contact Us
Download
Privacy Policy
Live Tech Support
E-mail: info@keyking.net
Office hours are from 9:00 am – 6:00 pm Local Time Monday to Friday.
Technical Support phone 9:00 am – 8:00 pm Local Time Monday to Friday.
Copyright © SHENZHEN KEYKING TECHNOLOGY CO., LTD 1995-2022. All Rights Reserved
粤ICP备18022877号