
Section 15
Glossary
AC
Alternating current
APN
Access Point Name
CHAP
Challenge handshake authentication protocol
CTS
Clear to send
DC
1. Direct current
2. Disconnector
3. Double command
DCD
Data carrier detect
DHCP
Dynamic Host Configuration Protocol
DI
Digital input
DIN rail
A standardized 35 mm wide metal rail with a hat-shaped
cross section
DIP
Dual in-line package
DIP switch
A set of on-off switches arranged in a standard dual in-line
package
DNP3
A distributed network protocol originally developed by
Westronic. The DNP3 Users Group has the ownership of
the protocol and assumes responsibility for its evolution.
DNS
Domain Name System
DSR
Data set ready
DTE
Data Terminal Equipment
DTR
Data terminal ready
EMC
Electromagnetic compatibility
Ethernet
A standard for connecting a family of frame-based
computer networking technologies into a LAN
GND
Ground/earth
HMI
Human-machine interface
HTML
Hypertext markup language
HTTPS
Hypertext Transfer Protocol Secure
I/O
Input/output
IEC
International Electrotechnical Commission
IEC 60870-5-101 Companion standard for basic telecontrol tasks
1MRS758459 C
Section 15
Glossary
ARC600
77
User Manual