Structured Cabling is the comprehensive cabling infrastructure that are used for telecommunications in buildings and campuses. It is inclusive of cabling systems and related hardware, and consists of standardized subsystems including entrance facilities, equipment rooms, backbone cabling, horizontal wiring, telecommunications rooms and work-area components. Owing to these subsystems, structured cabling is called so.Read More..
A good, structured cabling system integrates the complete communications of the building via voice, data, video, and utility systems such as access, alarms, lighting of a building, and ensures high performance. It brings:
- Flexibility for further add-ons and changes
- Optimizes resources
- Makes the network agile and future-ready for growth and expansion
Power over Ethernet (PoE) is the LAN switching technology that delivers both DC power and data to devices over copper Ethernet cabling. DC power is transmitted from Power Sourcing Equipment (PSE) over the existing twisted pair Ethernet cable which enables connectivity in Powered Devices (PD) such as IP phones, video cameras, wireless access points, point-of-sale machines, access control card readers, LED luminaires, and other industrial and building automation applications.
The PoE technique:
- Eliminates the need for separate power supplies and outlets
- Reduces capital expenditure requirement
- Lowers the return of investment (ROI) of projects
It is important to note that fundamental physical factors affect powering lines irrespective of the method used. Loss in the cables, therefore, is normal for devices that are powered over the communications cables. This raises the temperature of the cables. Temperature rises in structured cabling networks, in turn, affect cable performance and their distance reach.
To address this, STL developed a proprietary PoE calculator that helps in selecting the correct cable for 4PPoE applications. It calculates the impact of cable type and its installation condition on rise in temperature to enable accurate selection.
The PoE calculator is used as a reference of following ISO/IEC 14763-2, IEEE P802.3bt Type 4 guidelines to support delivery of power using all four pairs up to 1000 mA per pair for a maximum power of 100 Watt at power source.Read Less..
