Siren Connection - Tecnoalarm Tecnofire TFA2-596 Installation Manual

Open loop connection
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.
-
- +
OUT6
47K
-
- +
OUT6
52
TFA2-596 - TFA4-1192

10-2 - Siren connection

- +
- +
L1A L1B
- + - +
Warning: the sirens and the optical-acoustic alarm devices manufactured by Tecnofi re
are equipped with protection diodes and with bus termination resistors
(the resistors can be enabled through a dip-switch).
-
- +
- +
OUT6