RLE FMS V.1.13 - Manual (Page 24)

24 FMS User Guide 800.518.1519
2 Getting Started
recommends powering the FMS from a UPS supply to allow the FMS to send alarm
notification during a power outage.
Figure 2.1 24VDC Power Supply Connection
If you are installing a 48VDC FMS, the FMS must be connected to either:
a An external 48VDC supply that can be unplugged or switched off.
b The 48VDC supply bus via a switch or a circuit breaker. The switch or circuit breaker
must be suitable located and easily reached. It must be clearly marked as the
disconnecting device for the FMS.
For a 48VDC model FMS, connect a 48VDC supply through a circuit breaker to TB1 as
shown below. In telecommunications applications, the 48VDC supply is typically connected
to the 48VDC battery system through a DC distribution panel.
Figure 2.2 48VDC Power Supply Connection