The maximum allowable field wiring resistance between the transmitter and the IOTA connection terminal is dependent upon the voltage requirement of the transmitter. The formula for calculating the maximum wiring resistance for the Series C UIO channel used as an analog input is given by the following equation.
SECURE DATA TRANSMISSION
On the web, Hypertext Transfer Protocol (HTTP) is the foundation of data
communication protocols. When we type strings of a website address starting
with http://, we send access requests to the web page. Behind the scenes,
the HTTP protocol enables a session with a sequence of network request
response transactions, which transmits the web page to the end user.
HTTP sites are not encrypted and are vulnerable to man-in-the-middle and
eavesdropping attacks. A more secure protocol, “HTTPS,” also called Hypertext Transfer
Protocol Secure, takes the place of HTTP and builds a more secure communication by
providing both encryption of the communication and authentication of the remote hosts.
In a video system, data may transfer through an untrusted or unsafe network. Honeywell
uses the HTTPS protocol to provide bi-directional, encrypted communication
between devices and systems. Please check Honeywell webpage https://mywebtech.
honeywell.com/Account/Login/ for the latest list of products supporting HTTPS
encryption. For products without HTTPS encryption capability, please avoid using
them in untrusted networks or install them behind a firewall to mitigate potential risk.
When an HTTPS session request is sent to an IP camera, the camera and
server will authenticate each other by exchanging certificates. Only after both
identify and authenticate each other a secure session is established.
