2. Technical Description
9752 Installation Guide
Page 10
497098 Issue 3
Standby battery (not supplied) 12V rechargeable lead-acid, gel-type battery.
Low battery voltage cutoff = 10V.
Recommended manufacturers: Yuassa, Yucel
or Fiamm.
Note: Grade 1 and 2 compliance requires the panel to continue for a minimum
period of 12 hours on a standby battery. To calculate the minimum
capacity battery to achieve this requirement, determine the total current
taken by external devices and the panel and multiply by 12.
The maximum recharge time for a 17Ah battery is 72 hours (complies
with Grade 1 and 2 requirements). A lower capacity battery will take less
time to charge.
Outputs
OP 1 and 2
Voltage-free, single-pole relay contacts, rated
24VDC @ 1A.
OP3
Open-collector transistor output, 500mA,
12VDC, negative applied.
LS
Supports two parallel-connected, externally
mounted loudspeakers for internal sounder or
EE tones: minimum speaker impedance 16
Ω
.
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 35.
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.
