1
BASIC
DESCRIPTION
1.1
Basic Features
Door Entry Control Unit:
•
Buttons to dial extensions or groups;
•
Options for single/double buttoned which call different numbers/groups
•
Backlit buttons;
•
Two internal SPDT relays for controlling a door opener or light etc.
•
Relays controlled individually by DTMF tones; and
•
SIP Protocol.
Unit with IP camera (as above with):
•
Optional real-time IP camera viewed via a computer terminal;
•
View and talk to callers as well as opening the door remotely; and
•
Camera permanently operational, not just during calls.
ProTalk Support Kits:
•
A range of electronically controlled door devices to connect to the door phone;
•
12v power supplies with battery backup option;
•
Exit Relays; or
•
Bundles [of above] as complete door entry kits.
1.2
Terminology
•
Ethernet
is a family of frame-based computer networking technologies for local area
networks (LANs).
•
A
local area network
(
LAN
) is a computer network covering a small physical area, such as
home, office or small group of buildings, such as a school or an airport
•
10BASE-T
runs over four wires (two twisted pairs) on a Category 3 or Category 5 cable.
•
100BASE-TX
Uses two pairs, but requires Category 5 cable (FastEthernet)
•
Twisted pair
cabling is a form of wiring in which two conductors (the forward and return
conductors of a single circuit) are twisted together for the purposes of cancelling out
electromagnetic interference (EMI) from external sources.
5
|
P a g e