Cable Specifications
Installation Handbook, Autroprime Interactive Fire Detection System, 116-P-APRIME2-INSTAL/DGB, Rev. C, 2016-29-02,
Autronica Fire and Security AS
Page 22
8.4.3 Cable Length and Power Consumption
The maximum cable lengths are defined for each segment
between panels. Each panel has a built-in electrical repeat of the
signal.
Power loss, however, is defined from the maximum power
consumption along the cable.
Note: RS-485 Panel Bus contains both the RS-485 signalling and
the redundant power to all panels. Two four pair cable will be
suitable.
Note: For redundancy, the power supply has to be supplied by two
physically separated cables in a loop structure to maintain
connection in case of damage to one cable. See drawing
(Simplified cable routing between panels).
NOTE: If separate power supplies are installed locally to source
the panels, the following shall be ensured:
The local power supply shall be galvanically isolated from its local
power source and earth.
The reference (0V) of this power shall be connected to 0V of the
Fire Alarm Control Panel to ensure same reference for all signaling
nodes. As described in the tables below, one of the pairs may be
used for this.
In this case, an earth fault at this panel’s power supply will be signaled
as a global earth fault by the Fire Alarm Control Panel.
The local power supply to the panel should include a local backup
source in case of loss of mains supply. In some installations it may
be required (by local regulations) that the power supply includes a
monitoring of internal condition in accordance to EN-54-4, and that
it signals a fault if present. The wires from the power supply’s fault
relay output has to be connected to J23, replacing the jumper. A
break in this circuit path makes the panel signal a fault in the
system. Total loss of power will be signalled in the system as a
missing panel.
Panel 1
(BS-200)
Cable 1
From Fire Alarm Control Panel to external
panel
Panel 2
(BS-210/
BU-210 etc)
J4/9
Panel Bus In A
Pair 1+
J14/5
A_1
J4/10
Panel Bus In B
Pair 1-
J14/6
B_1
J1/5
+24V out 1
Pair 2 (both wires)
J14/1
24V IN 1
J1/6
0V out 1
Pair 3 (both wires)
J14/2
0V IN 1
Not connected
Pair 4
Not
connected
Panel 2
(BS-210/BU-210
etc)
Cable 2a
From external panel (n) to next external
panel (n+1)
Panel 3
(BS-210/
BU-210 etc)
Terminals
J13/5 A_2
Pair
1+
A_1
J14/5
J13/6 B_2
Pair
1-
B_1
J14/6
J13/1
24V IN 1
Pair 2 (both wires)
24V IN 1
J14/1
J13/2
0V IN 1
Pair 3 (both wires)
0V IN 1
J14/2
Not connected
Pair 4
Not
connected
Содержание Autroprime
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