Find an article for your system
All articles 19
Latest article Networks & Infrastructure
The Complete Company Systems Map
A working map of 16 building systems, the standards that govern them, shared cabling and rooms, the integration matrix, UPS, cybersecurity, pre-sales checks and commissioning.
Haytham Mohamed 29 min read - Networks & Infrastructure
The Complete Company Systems Map
A working map of 16 building systems, the standards that govern them, shared cabling and rooms, the integration matrix, UPS, cybersecurity, pre-sales checks and commissioning.
- UPS & Batteries
What a UPS Does, and How the Main Types Differ
UPS topologies compared — offline, line-interactive and online double-conversion, kW vs kVA, battery runtime, VRLA vs lithium, bypass, EPO and generator bridging.
- Voltage Stabilizers
Voltage Stabilizers: Servo, Relay, and Static
Relay, servo and static AVR compared — buck-boost, accuracy, response, kVA sizing, motor inrush, three-phase regulation, bypass, troubleshooting and selection.
- Solar Power
Solar Power for a Site: On-Grid, Off-Grid, and Hybrid
On-grid, off-grid and hybrid solar — PV and inverter sizing, MPPT strings, batteries, performance ratio, clipping, Egypt yield and net-metering notes, commissioning.
- Generators
Standby Generators: What the Set Actually Includes
Standby gensets explained — engine and alternator, ESP PRP COP, kVA vs kW, ATS and paralleling, ventilation, fuel autonomy, wet stacking, commissioning and troubleshooting.
- Building Management Systems (BMS)
A Building Management System in Plain Terms
BMS architecture, DDC points, BACnet Modbus KNX DALI, sequences of operation, integration, commissioning and troubleshooting — in plain terms.
- Automation Systems
Automation Systems: PLC, HMI, Drives, and SCADA
PLC, HMI, VFD and SCADA — architecture, I/O and scaling, industrial protocols, EMI, BOQ sizing, commissioning, troubleshooting and OT cybersecurity.
- CCTV Surveillance Systems
CCTV: Cameras, Recorders, and What Coverage Means
IP versus HD-over-coax, camera types and specs, DORI coverage, DVR/NVR/VMS, storage and PoE sizing, network design, integration and commissioning.
- Access Control & Time Attendance
Access Control: Doors, Readers, and Attendance
Access control versus Time & Attendance — readers, credentials, controllers, fail-safe locks, OSDP, BS 7273-4 fire release, power sizing and BoQ essentials.
- Fire Alarm Systems
Fire Alarm: Conventional and Addressable Systems
Smoke, heat, multi-criteria, beam, ASD and flame detectors — plus conventional versus addressable architecture, spacing, loops, cause-and-effect and battery sizing.
- Networks & Infrastructure
Networks: The Cabling Under Every Other System
Copper categories, shielding, PoE types, fiber backbone and certification — how the physical layer under cameras, doors and the office is chosen and proven.
- Public Address & Voice Evacuation
Public Address and Voice Evacuation
PA, PAVA and voice alarm — 100 V sizing, active versus passive speakers, SPL and STI, EN 54-16/-24, and how fire-alarm integration decides what people hear.
- Intrusion Alarm Systems
Intrusion Alarm: Zones, Sensors, and Arming
Door contacts, glass-break, PIR and dual-tech, zones versus partitions, arming modes, EOL supervision and EN 50131 grades — how an intrusion system is built to respond.
- Access Control & Time Attendance
Parking and Barrier Systems
Paid parking, boom barriers, ANPR/RFID, tariffs, lane throughput, ultrasonic and camera guidance, Find My Car, loops, civil works and commissioning.
- CCTV Surveillance Systems
Video Wall and AV Systems
LCD vs LED walls, pixel pitch, PPI, controllers vs matrix vs decoder, AV-over-IP, DSP/AEC audio, heat load, service access and commissioning.
- Access Control & Time Attendance
Physical Security and Vehicle Barriers
Vehicle barriers, boom arms, road blockers, bollards, tyre killers, UVIS, crash ratings PAS 68/ASTM F2656, drainage, foundations and checkpoint integration.
- Access Control & Time Attendance
X-Ray and Security Screening
Design a security checkpoint — X-ray tunnel classes, dual energy, penetration, WTMD zones, throughput, EMI, radiation safety and equipment selection.
- CCTV Surveillance Systems
How to Add a Dahua DVR or NVR to DMSS on a PC
Add a Dahua recorder to DMSS on Windows or macOS by serial number (P2P) or by local IP address, check the connection, and fix the most common errors.
- Servers & Storage
Servers and Storage for Recordings and Site Data
How servers, DAS, NAS, SAN and RAID fit together for CCTV recordings and site data, with a capacity formula and a clear NVR versus VMS choice.
No article on this yet. Tell us what you are stuck on and a PSS engineer will answer. Ask an engineer
Did not find your answer?
Send the question to the PSS engineering team. Urgent problems on a running site go to the 24/7 technical support line.