Filter
Top Products
D9112 Operation & Installation Manual
Page 2074-06144-000-C 2/96
© 1993-1996 Radionics
Secondary Power Terminals 4 5
Secondary (DC) Power
A 12V, 7 Ah sealed lead-acid rechargeable battery (Radionics D126) supplies secondary
power for auxiliary and alarm outputs, and powers the system during interruptions in
primary (AC) power.
Lead Acid Batteries ONLY: The D9112 charging circuit is only calibrated for lead-acid
batteries. Do not use gel-cell or nicad batteries.
Extra Batteries Increase Back-up Time: To increase battery back-up time, connect a
second 12V, 7 Ah battery in parallel to the first battery to form a 12V, 14 Ah battery. Use
a D122 Dual Battery Harness to ensure proper and safe connection. You can use the
D8132 Battery Charger Module to connect two additional batteries for a total of four. See
the D9112 Standby Battery and Current Rating Chart in this manual for battery standby
time calculations.
Installing the Battery
Place the battery upright in the base of the enclosure. Locate the red and black leads
supplied in the literature pack. Connect the black battery lead to terminal 4, and then to
the negative (-) side of the battery. Connect the red battery lead to terminal 5, and then to
the positive (+) side of the battery.
Warning, High Current Arcs Possible: The positive (red) battery lead and Terminal 5
can create high current arcs if shorted to other terminals or the enclosure. Use caution
when working with the positive lead and terminal 5. Always disconnect the positive (red)
lead from the battery before removing it from terminal 5.
Replacement
Radionics recommends battery replacement every 3 to 5 years under normal use.
Exceeding the maximum output ratings, or installing the transformer in an outlet that is
routinely switched off, causes heavy discharges. Routine heavy discharges can lead to
premature battery failure.
D8132 boosts battery backup: Adding a D8132 Battery Charger Module supports
additional batteries of up to 36 Ah capacity if required.
Warning: The transformers for the D9112 and any D8132 modules connected to it must
be powered from the same 120 VAC circuit. The D9112 supervises AC power by
monitoring the power from the transformer connected to terminals 1 and 2. It cannot
supervise the AC power for D8132 modules if their transformers are not plugged into the
same AC circuit as the transformer for the panel.
Battery Supervision
When the battery voltage drops to 13.8 VDC, the yellow Charging Status LED lights.
When the battery drops to 12.1 VDC the red Low Battery LED lights and the panel, if
programmed for power supervision, transmits a BATTERY LOW report in the Modem II
transmission format. It transmits a TROUBLE ZN 9 report in the BFSK format.
If the battery is missing or shorted, the red Low Battery LED flashes at the same rate as
the green Operation Monitor LED. If the panel is programmed for power supervision, it
transmits a BATTERY MISSING report in the Modem II transmission format, or TROUBLE
ZN 9 report in the BFSK format.