DVTEL 7701DA, User Manual

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Connection jacks
The connection jacks of the 10-block terminal block are used to connect to power, alarm switches, relays, and
audio.
Terminal allocation
Glossary
A few brief explanations of the most important terms and abbreviations used in the field of communications
technology can be found below.
Terminal Function
Li audio input (line level)
Lo audio output (line level)
IN1 Alarm 1 input
R alarm output
+ power supply, 9 to 24 V
GND electrical ground
GND electrical ground
IN2 Alarm 2 input
R alarm output
– power supply
10/100 Base-T IEEE 802.3 specification for 10 or 100 MBit/s Ethernet
ARP Address Resolution Protocol: a protocol for mapping MAC and IP addresses
Baud rate The data transfer rate
bps Bits per second, the actual data rate
CIF Common Intermediate Format, video format with 352 × 288 pixels
DHCP Dynamic Host Configuration Protocol: a protocol for dynamic allocation of IP addresses
DNS Domain Name Service
FTP File Transfer Protocol
Full duplex Simultaneous data transmission in both directions (sending and receiving)
G.711, G.728 Standard ITU-T audio coding algorithms
H.224 Standard protocol for data communication and remote control
H.261 Standard video CODEC published by ITU-T
HTTP Hypertext Transfer Protocol
HTML Hypertext Markup Language
hub Multiplexer to connect a number of Ethernet units to a 10 Base-T segment
ICMP Internet Control Message Protocol
ID Identification: a machine-readable character sequence
IEEE Institute of Electrical and Electronics Engineers
IGMP Internet Group Management Protocol
Internet Protocol The main protocol used on the Internet. Together with the Transfer Control Protocol
(TCP), it constitutes "TCP/IP"
IP See "Internet Protocol"
IP address A 4-byte number uniquely defining each device on the Internet. It is usually written in
dotted decimal notation with periods separating the bytes, for example "209.130.2.193".
ISDN Integrated Services Digital Network
ISP Internet Service Provider