Office PoE Network Infrastructure Design

Project Overview:

The client was upgrading its office network, which included IP surveillance cameras, wireless access points, IP telephony, and access control systems. As the number of PoE-powered devices increased, the company required a properly engineered network capable of delivering reliable power and ensuring uninterrupted operation.

SVC Service performed a complete infrastructure assessment, calculated the required PoE power budget, selected appropriate managed switches, and designed a scalable network architecture with sufficient capacity for future expansion.

Initial Conditions and Challenges:

• Growing number of PoE-powered devices.
• Need to support surveillance, Wi-Fi, and IP telephony.
• Limited PoE capacity of existing switches.
• Risk of switch overload.
• Continuous operation of security systems required.
• Need for future scalability.
• Network cabling with varying cable lengths.

Project Objectives:

• Accurately calculate the required PoE power budget.
• Provide stable power delivery to all devices.
• Eliminate switch overload risks.
• Optimize network equipment selection.
• Prepare the infrastructure for future growth.
• Improve overall network reliability.

Solution Architecture:

Every PoE device was analyzed to determine its maximum power consumption, including peak operating conditions. Power loads were balanced across multiple switches, and networking equipment was selected with at least a 20% power reserve to ensure reliable long-term operation.

• PoE budget calculation.
• Selection of switches with sufficient power capacity.
• Distribution of devices across PoE and PoE+ ports.
• Load balancing between switches.
• Verification of cable quality and cable lengths.
• Reserved capacity for future expansion.

Implemented Tasks:

• Network infrastructure audit.
• Inventory of all PoE-powered devices.
• Maximum power consumption calculations.
• Selection of managed PoE switches.
• IEEE 802.3af/at/bt compatibility verification.
• Cabling system inspection.
• Stress testing under maximum load.
• Preparation of network documentation.

Technologies Used:

• MikroTik CRS / CSS switches
• Ubiquiti UniFi Switches
• PoE (IEEE 802.3af)
• PoE+ (IEEE 802.3at)
• PoE++ (IEEE 802.3bt)
• IP surveillance cameras
• Wi-Fi access points
• IP telephony
• Cat5e/Cat6 copper cabling

Project Results:

• Reliable operation of all PoE devices.
• Elimination of switch overloads.
• Continuous operation of surveillance systems.
• Stable power delivery for Wi-Fi and VoIP infrastructure.
• Power capacity reserved for future expansion.
• Reduced risk of downtime.
• Optimized investment in networking equipment.

This project demonstrates that successful PoE infrastructure begins with accurate power planning rather than simply selecting a switch. SVC Service designs scalable, reliable, and energy-efficient network infrastructures that remain stable even under peak loads.
SVC is an IT outsourcing company specializing in infrastructure projects for businesses across Ukraine.