Astra-931
Indication Panel
Operation Manual
The operating manual describes the operating principle, opera-
tional and maintenance conditions pertaining to indication panel
Astra-931 (hereinafter
“IP”).
The manufacturer reserves the right to make alteration regarding
refinement of the product without prior notification. All changes
will be imported into new edition of the operation manual.
1
Function
1.1 Indication panel is intended for indicating numbers and infor-
mation on battery discharge of wireless transmitters Astra-TRC,
Astra-TRC ver. M (hereinafter referred to as the
“transmitter”),
operating together with the wireless receiver (the receiver) of
wire
less alarm system “Astra-R”.
The transmitter number is the ordinal number under which the
transmitter is registered in the receiver.
1.2 IP can store and display (by sequential enumeration) up to 99
transmitter numbers.
1.3 IP provides for forced reset of acquired info.
1.4 Information is not stored once the IP power supply is switched
off.
2
Specifications
Digits, max ...................................................................................... 2
Character height, mm, max .......................................................... 14
Power supply voltage, V ................................................. 10.0 to 15.0
Current consumption, mA, max .................................................. 130
Readiness time after switch-on, s, max .......................................... 5
Overall dimensions, mm, max ....................................... 80
50
25
Weight, kg, max ......................................................................... 0,05
Operating conditions:
Temperature range,
°С ........................................ from -30 up to +50
Relative air humidity,
........................................ up to 95 at +35
C
no moisture condensation
3
Delivery Set
Indication panel Astra-931 .................................................... 1 pcs.
Screw 2-3x30 ........................................................................ 2 pcs.
Dowel 5x25 ........................................................................... 2 pcs.
Operating manual ................................................................ 1 copy
4
Structure
Structurally, IP is comprised of a base, a printed circuit board with
radio elements, and a cover, attached to the base with a screw
(Fig. 1). A safety plug covers the screw.
Plug
Cover
Screw
Mounting holes
Ø 3.5
Screw
terminal
blocks
Wire hole
Button
Cover not shown
PCB
Base
LED display
Fig. 1
Terminal marking is shown in Fig. 2.
5
Operating Principle
5.1 In the initial condition, the
“-” symbol is displayed in each digit
on the IP display.
5.2 Once the receiver sends
– via serial interface – a number and
battery discharge information of a transmitter, the IP display shows
the transmitter number, and a 4 s sound signal. From that moment
IP will generate a 1 s sound signal every 4 s.
5.3 The number of the transmitter with the battery discharged
below the level, given in Astra-TRC and Astra-TRC ver. M operat-
ing manuals, is displayed in the pulse mode.
5.4 When another number is sent from the receiver, this new
number is displayed on the IP display, and a 4 sec. sound signal.
«+12V»
«GND»
«In/Out»
«GND»
Fig. 2
