RS485, FIBRE OPTIC or TCP/IP
JUNO-NET TOPOLOGIES
RS485
SIMULTANEOUS
FIBRE OPTIC
RS485,
FIBRE OPTIC
or
TCP/IP
INTERFACE
If the system is distributed, the communication between the main panel and the external sub-panels or repeaters is
supported by either an RS422/485 fully redundant loop, fibre-optic cable or alternatively by TCP/IP.
For redundancy in the case of RS422/485 and Fibre Optic this can be wired in the form of a Loop, thus protecting the
Data Loop from interruptions or short circuits by creating a bi-directional communications flow. If the panel loses
communications with the repeater it will try via the opposite path.
RS422/485 may be used for distances of up to 1200m. For longer distances (up to 4,5km) Fibre Optic Data connections
should be used.
SUB
SUB
SUB
DIRECT TTL CONNECTION
BETWEEN UP TO THREE SUB-PANELS
MAIN
SUB
SUB
SUB
DIRECT TTL BUS
12 LOOPS
IN ONE BOX
MAIN
JUNO-NET
PANEL
SUB
PANEL
REPEATER
REPEATER
&
SUB
PANEL
27
Manufacturers of Fire Detection Equipment
INSTALLATION & COMMISSIONING MANUAL REVISION 4.0 05/2013
JUNO NET - NETWORKABLE ADRESSABLE PANEL
globalfire.pt
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