Serial essernet
®
interface (SEI1)
54 FB 798819 / 05.18
10.2.1 Connecting the power supply
The power supply of the serial essernet
interface (SEI1) may optionally be carried out via the
power supply unit of a fire alarm control panel or via an external power supply unit.
F1
1AT
X2
UB+
GND
external power supply
+
-
Fig. 8: Terminal X2
Operating voltage: 10.5 V DC to 28 V DC
Current consumption: max. 60 mA @ 12 V DC
• Protective Earth (PE) must be connected to terminal X13!
• Observe permitted torque (max. 0.4 Nm) of the terminals!
•
If the SEI1 is connected to a VAS, the power supply to the SEI1 must also
take place via the power supply unit/PSU of the VAS, as otherwise a fault to
ground may be generated on the FACP.
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