Advanced ExGo Series Manual - Página 16

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3.4.1.3 RS485 Communications

One RS485 bus circuit is provided for connection
of the Remote Status Indicator panels to the
Extinguishing Control Panel.
SUPERVISED. POWER LIMITED.
Wiring to be twisted pair. The use of screened
cable is recommended in noisy environments.
Maximum distance 1000m. Maximum line
impedance 50Ω.
Connect the cable from 'A' to 'A' and from 'B' to 'B'.
Equipment is connected via a daisy chain. A 150Ω
End-of-Line resistor to be fitted at last unit.
Connect the screen to one of the earth studs in
the back of the panel enclosure and to the
designated point in the remote status indicator
panels. Ensure the screen is continuous.

3.4.1.4 Input Circuits

Two Programmable Function Input Circuits are
provided.
Each input circuit is monitored for open and short
circuit conditions – see typical arrangement below.
EOL = 6800Ω. Maximum line impedance 50Ω.
Connect to volt-free switches / relay contacts only.
6K8
470R
The VALVE MONITOR input is used to monitor the open / closed state of a mechanical valve control
device.
If the valve is in an indeterminate state (neither fully open nor fully closed) for more than 30 seconds, the
panel will indicate a fault condition.
The function / action of the inputs is defined in the control panel. Refer to the control panel manual for
further details. If unused, connect a 3300Ω (or 2x 6800Ω in parallel) EOL across the terminals.

3.4.1.5 USB

The USB socket is for connection to a Laptop or PC.
This can be used for upload of a new logo.
C O N T R A S T
A D J U S T
16
M O D E
M A N U A L O N L Y
S U P P L Y
C O N T R A S T
A D J U S T
E X T I N G U I S H A N T
R E L E A S E
I M M I N E N T
T I M E R H E L D
D I S A B L E D
M A N U A L O N L Y
S U P P L Y
C O N T R A S T
A D J U S T
TYPICAL SWITCH
ARRANGEMENT
E X T I N G U I S H A N T
R E L E A S E
R E L E A S E D
I M M I N E N T
A B O R T E D
T I M E R H E L D
D I S A B L E D
M O D E
M A N U A L O N L Y
S U P P L Y
I N P U T S
A U T O +
M A N U A L
4 8 5 - I N
I N P U T S
R E L E A S E D
SCR
Remote
Status
A B O R T E D
Indicator
F A U L T
Extinguishing
Panel
A B
RS485
AUX Supply
M O D E
A U T O +
M A N U A L
I N P U T S
6K8
6K8
470R
F I R E
Z O N E - 1
Z O N E - 2
F A U L T
Z O N E - 3
A U T O +
S Y S T E M F A U L T
M A N U A L
4 8 5 - I N
4 8 5 - O U T
S Y S T E M F A U L T
4 8 5 - O U T
R E B O O T
S W I T C H
F I R E
Z O N E - 1
B A
SCR
B A
SCR
B A
SCR
B A
Remote
IN
OUT
IN
OUT
Status
Z O N E - 2
Indicator
150Ω
Z O N E - 3
S Y S T E M F A U L T
4 8 5 - I N
4 8 5 - O U T
VALVE MONITOR SWITCH
ARRANGEMENT
VALVE FULLY OPEN
VALVE FULLY CLOSED
U S B
R E B O O T
S W I T C H
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U S B
R U N P R O G
R e m o
U S B
R U N P R O G
R E B O O T
S W I T C H
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