Page 99
490X Engineer’s Reference Guide
AUX 12V Terminals
This pair of terminals supply the + and - supply for the detectors. 1A is available from
these terminals (see power supply rating above).
Strobe Terminals
This pair of terminals are the output for the Strobe. The negative terminal is switched
during an alarm period. A maximum of 600mA may be drawn from these terminals (see
power supply rating above).
Bell Terminals
This pair of terminals are the output for the Bell or external sounder. The negative
terminal is switched
during an alarm period. A maximum of 1A may be drawn from these terminals
(see power supply rating on previous page).
490X 1.qxd 11/07/2006 12:32 Page 99
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