
2. Technical Description 9651
Page 8 11772232
Outputs
OP 1, 2, 3 Open-collector transistor outputs, 500mA,
12VDC, negative applied.
LS Supports two parallel-connected, externally
mounted loudspeakers for internal sounder or
EE tones: minimum speaker impedance 8Ω.
AUX 500mA, 12VDC minimum, 13.8VDC
maximum, ripple ±2% maximum.
Communications outputs 12V logic outputs, negative applied in alarm
(positive removed), 50mA maximum.
Inputs
TR Tamper return for Bell
Tellback/Remote reset** +12V applied to operate reset.
Line Fault input** +12V applied to indicate line failure.
** These inputs appear as pins on the connector for the plug-by
communicator. See page 25.
Fuses
The panel uses fast-acting polyswitch fuses for overcurrent protection:
F1 – 12V AUX output
F2 – Battery output
F3 – Bus 1
Note: Polyswitch fuses automatically reset when the load is entirely removed.
The panel uses a T-250mA mains fuse.
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