Tecnoalarm Tecnofire TFA2-596, Руководство по установке, Страница: 52 / 64

TFA2-596 - TFA4-1192
52
L1B L1A
- + - +
LO
OP
O
U
T
IN
R
IP
SH
IE
LD
-
+
LO
OP
O
U
T
IN
R
IP
SH
IE
LD
-
+
LO
OP
O
U
T
IN
R
IP
SH
IE
LD
-
+
-
OUT6
- +
- +
-
OUT6
- +
- +
- +
-
OUT6
- +
47K
The sirens are connected via a controlled output (terminals 25 SIR+ and 26 SIR-).
The line must must be terminated with a 47K resistance:
• If no siren is connected, a 47K bus termination resistor must be connected between terminals 25 and 26.
• If one siren is connected, a 47K resistor must be connected in parallel next to the siren.
• If multiple sirens are connected, a 47K resistor must be connected in parallel next to the last siren.
N.B. The polarity of the terminals refers to the alarm state, in stand-by the polarity is reversed.
Open loop connection
10-2 - Siren connection
Warning: the sirens and the optical-acoustic alarm devices manufactured by Tecno fi re
are equipped with protection diodes and with bus termination resistors
(the resistors can be enabled through a dip-switch).