Time&Space terminals are key hardware components and share
the same hardware architecture. Both support the same
subnetwork communication based on RS485 standard and both can
be a part of the same subnetwork segment. According to their
communication capabilities, terminals fall into four
connectivity types:
-
Master: Device with host communication and RS485 subnetwork
interface. Acts as communication bridge and connects up to 31
slave devices to host.
-
Slave: Pure RS485 subnetwork device.
-
Single: Device with host connection only and no subnetwork
capability.
- Stand-alone: Device without any data communication
(also called "unplugged").
Master-slave device configuration
Single device configuration
For host communication, terminals (master and single device
types) are equipped with serial port (RS232, 20mA current
loop) or optional integrated Ethernet interface.
Host communication options
All devices (except stand-alone) support online and offline
operation with full autonomy (offline access control, offline
event logging). All devices are equipped with two door strike
controls and two card reader interfaces.
The combination of full offline autonomy and master/slave
subnetwork concept assures high degree of flexibility without
any extra control or storage devices which are often
significantly increasing complexity and vulnerability of the
system.
Wireless terminal connection
There are more and more situations
requiring wireless or even mobile terminal connections. Some
examples:
- Construction and other temporary
sites that don’t have fixed installations.
- Mobile sites or teams that
frequently move from location to location.
- Any building or site where
cabling is too expensive or not practical.
Read more on how Time&Space terminals offer various
wireless connection possibilities.
Learn more about how to use Time&Space with mobile technology.
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