5
1.4
The keypad is powered from external DC redundant power supply units with
nominal voltage
12 V
or
24V
.
1.5
The keypad has two independent power supply inputs (main and auxiliary).
Switching between them occurs automatically when voltage is below the acceptable level
according to GOST R 53325.
1.6
The keypad has an input controlling consolidated signal “Failure” from power
sources (terminals
Zone1, GND
).
Note
– The input
Zone1
is not intended for connection of any detectors or their
power sources across the alarm loop.
2 Technical Specifications
Power supply voltage, V ................................................................................... 10 - 27
Current consumption, mА, max .............................................................................. 150
Characteristics of AL1, AL2 (terminals Zone1, GND, Zone2):
Voltage across terminals of AL in standby mode, V ......................................... 10 - 27
Short-
circuit current across AL, mА, max ................................................................. 20
Alarm loop resistance* in kOhms for the following statuses:
-
«Normal» ............................................................................................................ 3 - 5
-
«Violation» .......................................................................................... 0 -3 or above 5
Integration time AL1, ms ..................................................................................
300 ± 30
Integration time AL2, ms ..................................................................................
500 ± 50
Resistance in wires connected to AL
(exclusive remote mounted units), Ohm, max ......................................................... 220
Leakage impedance between wires in AL or
each wire and “Ground”, kOhm, min ......................................................................... 20
Characteristics of Relay1 output
:
Maximum load voltage AC, V .................................................................................. 250
Maximum load voltage DC, V ................................................................................... 30
Maximum load current AC, DC, А ............................................................................... 5
Characteristics of Out output
:
Maximum load current, mА ..................................................................................... 100
Maximum load voltage, V.......................................................................................... 27
RS-485 interface line length
, m, max ................................................................. 1000
Dimensions, mm, max ..........................................................................
174 × 150 × 43
Weight, kg, max ..................................................................................................... 0,42
Содержание Atra-814 Pro
Страница 1: ...Research and Development Center TEKO CONTROL KEYPAD Operation Manual...
Страница 35: ...35 MOUNTING LAYOUT...