Technical data

Chapter 4: Installation
Series SPB Audio Boosters Manual, Revision A
4-23
Figure 4-19 Input Power Connection Location,
SPB Power Supply
2. Connect the battery to the BATTERY terminals on the Audio Booster PC Board shown
in Figure 4-20. The DC OUT on the Audio Booster is used to power the splitter modules
only.
3. Calculate proper backup battery requirements, using Section 4.8, Battery Care and
Backup Battery Calculations. Section 4.9 is the AC and battery installation procedures.
4.4.6.B SPB-320 Power Connection Requirements
The SPB-320 Audio Booster Panel contains two 24VDC Power Supplies (SPBPS). AC input
power to the Line (L) and Neutral (N) terminals on the Power Supply Motherboard is factory
connected from the Terminal block. Connect the AC input power to the Line (L) and Neutral (N)
terminals on the Terminal block as shown in the figure below.