Aiphone AI-900 - Manual (Page 39)

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12.10. AI-900MF Main Frame and AI-PU200 Power Transformer Connection
[Connection]
Connect as shown below using 2 parallel pair cables. Use cables with a sufficient current capacity and a
heavier gauge than AWG18. Two AI-PU200 units are required when using 3 or 4 AI-900RS cards.
AI-900MF and power supply connection
AI-900MF
24 V DC
AI-PU200
To commercial power supply
AI-PU200
To commercial power supply
OUTPUT
20V AC 2.5A 20V AC 2.5A
OUTPUT
20V AC 2.5A 20V AC 2.5A
from AI-PU200
AC-IN AC-IN
1 2
DC24V IN
G1 FG
from AI-PU200
AC-IN AC-IN
3 4