teko Astra-824 User Manual

Astra-824
Relay unit
User guide
Manufacturer:
ZAO NTC TEKO
420108, Russia, Kazan,
Gafuri str., 71
Tel.:+7(843) 528-03-69
export@teko.biz
www.teko.biz
Made in Russia
Rev. 824А-v1_4_instr_en

1 FUNCTION

Signal relay unit (RU) is designed to receive notifica-
tions from Control Device (CD) via the RS-485 wired
interface and to issue notifications to the relay outputs.
It is possible to connect the relay unit to the RS-485
ring interface of the Control Panel using isolators
Astra-ILS compatible with control panel and Relay unit
of 5.5 versions.
The relay unit is controlled with Control Panels Astra-
812 Pro and Astra-8945 Pro, radio extender Astra-WE
433 (WE-433).
Sources of notifications for the relay unit are sections
of the Control Panel or detectors registered in the WE-
433.
The RU has two independent power supply inputs: U1
and U2, and a Zone input for monitoring the servicea-
bility of power supplies.
2 SPECIFICATION
Power supply voltage, V ..................................... 10 - 27
Maximum interface length RS-485, m................1000
Relay quantity...................................................8
Max. amperage switched by relay, A....................0.1
Max. switched voltage relay, V...........................100
Zone input resistance, kOm,
Norm...................................................from 3 to 5
Violation ..........................from 0 to 3 or more than 5
Dimensions, mm................................. 121x80x31
Operating Conditions
Temperature, °С
.................................. from - 30 to + 55
Relative air humidity, % ...................... up to 93 at +40°С
without moisture condensation

3 DELIVERY SET

resistor 3.9 kOm – 1, fastening
Delivery set includes:
user guide –
parts (dowels - 4, screws - 4),

4 INDICATION

Condition
Power supply
(norm)
Main power
failure
Backup power
failure
Power failure
Software
change
Not registered
Interface -
norm
interface
malfunction

5 TERMINALS FUNCTION

Terminal
485A, 485B
U1, GND
U2, GND
Zone, GND
Relay1 – Relay8
1.
LED 1
LED
-
Green
-
Green blinking 1
time per sec.
-
Yellow blinking 2
times per sec.
Yellow blink 1
time per sec.
off
Red
off
-
Green
-
Yellow blinking 2
-
times per sec.
Function
Interface line RS-485
Main power supply input
Backup power supply
input
Input for monitoring the
serviceability of power
supplies
Relay outputs