Design Installation Operation Manual NANO/MAR/SYSTEM January 1, 2023 | version 1.2 P
18
20
C
ONNECTING USING THE EXTINGUISHER TERMINAL BOX
(NETB)
The NETB is developed for use with the NCP and aerosol extinguishers. This terminal connection
board is equipped with built-in security electronics, which ensures that all igniters of the extinguishing
units are activated. Together with an end line switch, this option turns the NMS into a complete and
reliable fire detection and extinguishing system.
WARNING
Incorrect placement of the end line sw
itch makes it possible to disable a part of the extinguisher’s
activation circuit. Therefore, a visual inspection is an essential part of the commissioning and
maintenance engineers’ work. This visual inspection must be a standard provision in the
commissioning regulation.
21
E
XAMPLE SWITCH POSITION
NETB
5
WITH
3
EXTINGUISHERS
DISCONNECT EXTINGHUISHER
Move the disconnect switch in the YES
position and the aerosol extinguisher
is disabled and can not be activated.
All ETB’s
connected thereafter will
remain in operation. A disablement
will be signalized as fault on the NANO.
ENABLE END OF LINE DIODE
To monitor for short circuit or wire
break, only the end of line switch on the
last ETB must be set into the YES
position. A failure to do so will be
signalized as a fault on the NANO panel.
EXT 1
EXT 2
EXT 3
ETB 1
on
off
Disconnect
Extinguisher
switch
End Of
Line
switch
ETB 2
on
off
ETB 3
on
off
ETB 4
on
off
ETB 5
on
off
IN
The ETB dip switch positions on a NETB 5
in use with 3 Stat-X extinguishers
Disconnect
Extinguisher
switch
N/A
N/A
