ABUS AZ6302 Terxon GSM dialer - Manual (Page 61)

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6.2.2 Negative trigger
In order for a negative trigger to be made, a 0 V DC signal must be present on
an input.
6.2.2.1 NO wiring
6.2.2.2 NC wiring
6.3 Tamper
These connector clamps are normally connected to the tamper zone of an
alarm centre. When the housing is opened, the NC contact of the GSM dialer
is also opened and the tamper line is interrupted.
6.4 Outputs (OP1-OP4)
Four negative switching transistor outputs are present. If certain events take
place, these switch other external devices with a maximum switching current of
100 mA.