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Find answers to 600 common questions about choosing, installing, setting up and maintaining KDT equipment, all in one place.
Popular topics: CCTV Cameras HDD Capacity Calculation Bandwidth Calculation Network Switches
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- CCTV Cameras cameras, lenses, images, night vision, recording, AI, installation 50 questions
- Network Switches switches, PoE, VLANs, uplinks, management, SNMP, networking 50 questions
- Network Storage NVRs, hard disks (HDD), storage, RAID, backup, data retention 50 questions
- Fiber Optic Products fiber, SFP, SFP+, ODF, OTDR, fusion splicing, optical links 50 questions
- IP Phones IP phones, SIP, IP-PBX, PoE, voice VLAN, call quality 50 questions
- IP Speakers IP speakers, PoE, paging, zones, multicast, voice announcements 50 questions
- Burglar Alarm Systems control panels, sensors, PIR detectors, magnetic contacts, sirens, batteries, security alerts 50 questions
- Bandwidth Calculation bitrate, link capacity, uplink, traffic, QoS, network design 50 questions
- Smart Home lighting, curtains, HVAC, security, scenes, control, automation 50 questions
- Software VMS, CMS, firmware, SNMP, OID, remote access, API, management 50 questions
- Infrastructure racks, cabling, fiber, UPS, power, Wi-Fi, VLAN, network design 50 questions
- HDD Capacity Calculation bitrate, retention period, HDD capacity, RAID, recording, backup 50 questions
Popular questions
Answers to the questions customers and installers ask us most often.
CCTV CamerasWhy does my CCTV camera drop its connection from time to time?
Common causes include unstable power, an unreliable cable or link, heavy load, incorrect settings and firmware issues. Reviewing the event log and testing step by step will help you pinpoint the cause.
HDD Capacity CalculationHow do I work out how much hard disk capacity a storage system needs?
Base the calculation on the number of devices, actual usage, how long the system will be in use and how much the project is likely to grow. It is also wise to keep some capacity in reserve.
Bandwidth CalculationHow do I work out how much bandwidth a network needs?
Base the calculation on the number of devices, actual usage, how long the system will be in use and how much the project is likely to grow. It is also wise to keep some capacity in reserve.
CCTV CamerasDoes after-sales service for CCTV cameras continue after the warranty expires?
As long as a product can still be supported technically and its technology has not become obsolete, we can continue to provide repairs and spare parts after the warranty expires.
Network SwitchesWhere should I start when choosing the right network switches?
Start by defining the intended use, the number of devices, the installation environment, the capacity required and your plans for future expansion. Then choose the model and technical specifications based on what the project actually needs.
CCTV CamerasDo CCTV cameras need an internet connection?
Not necessarily for basic operation. Some management or remote-access features may require internet access, but local operation can work independently.
IP PhonesWhy isn't my IP phone working properly?
First check the power, the cable or connection, the settings, the network address and the software status. Then you can move on to more in-depth checks and the logs.
Burglar Alarm SystemsCan burglar alarm systems be managed remotely?
Yes, if the product and the network architecture support it. Remote access must also be protected with authentication, a secure connection and access restrictions.
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