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1.1 6400 NETWORK OVERVIEW
6400 PSU
To supply LPN
6400 PSU
To supply DCN
6400 DCN node
Has FULL display and control of
the network
6400 LPN
can drive up to 4 loops of
127 devices
(508 devices)
in total
6400 LPN
can drive up to
8 sounder circuits
6 aux contacts
6400 LPN node
Drives field wiring
NO control of network
KEY
Secure network (RS485)
24 volt supply from PSU to node.
LPN = Loop processing Node
DCN = Display control Node.
RDN = Repeat display Node
LCD = Network LCD repeater.
PSU = Power supply unit.
6400 DCN & LPN
Drives field wiring & has FULL
control of the network
6400 LPN
can drive up to 4 loops of 127
devices (508 devices) in total, 8
sounder circuits and 6 aux contacts
6400 PSU
To supply LPN
6400 RDN Node
Has full LCD display
with (optional printer).
Limited control of the network
6400 Network LCD (Listen)
Has full LCD display. NO printer
and NO control of the network.
Can be a spur off the network
24 volt supply to LCDs
can be taken from the
node PSU or a separate
PSU can be installed.
6400 DCN node
Has FULL display and control
of the network
2 RS232 Ports
used to connect a PC to
program the network and
operate a ‘graphics’, ‘pager’
or ‘BMS’ system.
PC or Lap-top
Can be connected to
any 6400 DCN on the
network
Zone expansion if greater
than 100 zones
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