page 16 579-1150 Rev M
4010ES IDNAC Fire Alarm System Installation Guide
3.3 Extended system supply
The ESS is the FACU’s power source and arrives installed in the cabinet. The ESS provides the following:
• 24VDC card power
• 6A of available IDNAC SLC current
• Battery charger
Note: The 4010ES can hold a maximum of 33Ah batteries in the one-bay box
and 50Ah in the two-bay box. The ESS charger is listed for 110Ah UL and 50Ah
ULC.
• 1 AUX Relay (2A, 32V)
• 1 AUX Power / Simple NAC Tap (2A)
• 2 IDNAC Channels
• 1 IDNet 2 Channel with 2 Isolated Loops
The ESS also performs standard fire alarm functions, such as brownout
detect, battery transfer, battery recharge, earth fault detection and power
limiting per UL 864. Figure 11 and Figure 12 illustrate the 4010ES ESS.
Figure 11: ESS position in a 4010ES bay
Figure 12: ESS card layout