Symmetry™ multiNODE-2 Controllers
Intelligent Modular Controllers
The Symmetry multiNODE-2 controllers utilize up to the minute
surface mount technology, provide high levels of resilience from electrical interference
and contain additional protection circuitry.
UL listed variants are available as an option, in hinged, lockable steel enclosures
with integral power supply and tamper facility.
A Symmetry multiNODE-2 360 Elevator NODE is also available which can control up
to 32 floors on an individual basis.
MDU-2 & MDU-4 Database Units
The Symmetry multiNODE-2 database units provide distributed processing for access
control and alarms monitoring applications.
When the MDU-2 or MDU-4 is networked
with other Symmetry multiNODE-2 database units in conjunction with the software
they form the basis of a fully integrated system. The MDU-2 and MDU-4 supports either
hard-wired connections to a PC port or can be configured to communicate via a standard
ethernet Local or Wide Area Network (LAN/WAN).
The MDU-2 and MDU-4 will also support "dial-up" modem reporting for those installations
with remote locations requiring centralized administration.
2-DC Door
Controller
The 2-DC door controller provides a means of extending an MDU-2 or MDU-4 to a maximum
of eight readers. The 2-DC units interface directly with readers and provide
all door control inputs and outputs. This configuration provides a lower cost alternative
to adding more MDU's and reduces cabling cost, as only a single twisted pair cable
is required to interconnect the units to their decision making MDU. This allows each 2-DC unit to be mounted local to the readers/doors it controls.
Option Modules
The MDU-2 and MDU-4 database units support an optional plug–in Network Interface
Card (NIC) to allow direct connection to a Local or Wide Area Network (LAN/WAN).
An additional RS-232 plug in interface module can be used within MDU-2 or MDU-4
database units to allow direct connection to a PC or dial-up modem.