Technology
IP (ingress protection) class of enclosures is according to IEC 529 given in the form of IP classification, a two digit coding which is shown below. The first table shows IP classification criteria. NEMA performance criteria... (Read more)
The Open Systems Interconnection Basic Reference Model (OSI Reference Model or OSI Model for short) is a layered, abstract description for communications and computer network protocol design, develope... (Read more)
EIA-485 (TIA-485) Balanced (differential) interface defines a standard physical communications layer. EIA-485 is protocol independent and often called the RS485 standard (the term RS485 is out-dated). EIA-485 specifies bidirectional, half-duplex data transmission.... (Read more)
The American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) Standard 55 - 2004 'Thermal Environmental Conditions for Human Occupancy' provides guidelines for acceptable ran... (Read more)