2
4 DESIGN
4.1
The BPA is made in the form of a module, consisting of a base
and a removable cover. The PCB with radio elements is mounted in-
side the device (Pic. 2).
Picture 2
4.2
The PCB has 9 LEDs:
-
POWER
– power supply status led
-
FAILURE
– failures led
-
INTERFACE
– SLC status led
-
OUTPUT1, OUTPUT2
– to display respectively the status of control
outputs OUT1, OUT2
-
ZONE1 - ZONE4
– state display
4.3
There is a tamper switch on the PCB to control opening of the
cover
4.4
The PCB has screw terminal blocks, the function of terminal de-
scribed in Table 1.
Table 1
Name
Terminal function
U1, GND
Main external power supply connection
U2, GND
Connecting a backup
external power supply
+OUT1-
+OUT2-
Load connection
Zone1
–
Zone4
(AL1-AL4)
Connection of addressable detectors (devices) for
fire, security (including those powered by AL)
А, В
Connection to SLC information line from RPA
+,
–
Connection to SLC power line from RPA
4.5
The design of the BPA provides the posibility to install and use
the BPA inside control cabinets.
5 AL OPERATING MODES
BPA distinguishes the following AL states:
- double-event smoke (Fire)
- double event heat (Fire)
- fire single event (Fire)
- alarm
- emergency
- emergency with short circuit control (Open circuit).
The AL state is determined by the parameters according to table 2.
Table 2
AL Type
Alarm Loop resistance, kOhm
0
–1.5
from 1.5
to 3.0
from
3.0 to
5.0
from
5.0
to 12.0
more
12.0
Fire smoke
double-
event
Fire
Fire danger Norm
Fire
Open
circuit
Fire heat
double event
Short
Cicuit
Norm
Fire dan-
ger
Fire
Open
circuit
Fire single
event
Short
Cicuit
Fire
Norm
Fire
Open
circuit
Alarm
Alarm
Alarm
Norm
Alarm
Alarm
Emergency
Alarm
Alarm
Norm
Alarm
Alarm
AL Type
Alarm Loop resistance, kOhm
0
–1.5
from 1.5
to 3.0
from
3.0 to
5.0
from
5.0
to 12.0
more
12.0
Emergency
short circuit
(Open circuit)
control
Short
Cicuit
Alarm
Norm
Alarm
Open
circuit
6 INDICATION
TEST
led is generated when the power supply is turned on via any of
the inputs U1 or U2, or by the CONTROL PANEL command, once the
indication is turned on for 1 sec in turn on all leds of the BPA: POWER
- green, FAILURE - yellow, OUT1 - red/yellow, OUT2 - red/ yellow,
AL1 - AL4 - red/yellow, INTERFACE - green/red/yellow.
Table 3
-
POWER
LED
notifications and CONTROL PANEL
Notification
LED POWER
CONTROL
PANEL
External power normal
Green
+
Failure of the main (or back-
up) power supply (lower or no
voltage at the inputs U1 or U2,
GND)
x1 green flashes every
sec.
+
Recovery of the main (or
backup) power supply (volt-
age recovery at inputs U1 or
U2, GND)
Green
+
Generic Failure (lack of power
at both inputs U1 and U2,
GND)
Off
+
Recovery from a general Fail-
ure (both inputs U1 and U2,
GND energized)
Steady on or flashing
green x1/sec (accord-
ing to current power
status)
«+» - notification is transmitted to Control Panel
«-» - notification is not transmitted to Control Panel
Table 4
- Notifications to the
FAILURE
LED
and Control Panel
Notification
LED FAILURE
CONTROL
PANEL
No Failures
Off
-
Failure (any)
Yellow
+
«+» - notification is transmitted to CONTROL PANEL
«-» - notification is not transmitted to CONTROL PANEL
Table 5
- Notifications to
LEDs OUTPUT1, OUTPUT2
and Control
Panel
Notification
LED
OUTPUT 1, OUTPUT2
CONTROL PANEL
Output on (Integrity contol)
(straight polarity applied)
Red
-
Output on (no integrity con-
trol) (straight polarity voltage
applied)
-
Output off (Integrity control)
(reverse polarity voltage ap-
plied)
Off
-
Output off (no integrity con-
trol) (straight polarity de-
energized)
-
Output
interruption
(with
output integrity control ena-
bled)
x1 yellow flashes
every 2 sec.
+
Output short circuit (with
output integrity control ena-
bled)
x2 yellow flashes
every 2 sec.
Output short circuit recov-
ered
Solid red or off.
(
depending on the
current state of
the
output
-
whether the out-
put is enabled or
disabled
)
+
Output open circuit recovery
«+» - notification is transmitted to CONTROL PANEL,
«-» - notification is not transmitted to CONTROL PANEL
