44 FP/FR1100/1200/2000 V6: Installation and Commissioning Manual
Two 12 V batteries have to be put in series and connected to the battery terminals. No
other equipment may be connected to the battery terminations.
The PSU-2000 is designed for use in Aritech fire panel housing only.
An optional third source battery (9 V, PP3) can be installed as a third source of power.
The location of the third source battery is shown in Figure 7.
"
Refer to Section 4 – Mounting instructions for routing of mains wires in
cabinet.