Mobatime DTS 4138.timeserver - Power Supply Alternatives

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10 Power supply alternatives
The DTS 4138 permits 2 different power supply alternatives:
1. DC power supply with 24VDC +20% / -10% to “DC in 1” or “DC in 2”
Notice:
In the menu: ‘2 Configuration’  ‘4 General’  ‘3 Power’ must be set
to '0=single'.
2. Redundant power supply:
Supply1: Supply2:
DC in 1 DC in 2
Supply is checked once per minute for correct functioning. The alarm ’loss of power
1’ or ’loss of power 2’ is set in case of error.
Notice:
In the menu: ‘2 Configuration’  ‘4 General’  ‘3 Power’ must be set to
'1=redundant'.
Block diagram of power supply:
processor
board
DC/DC
Supervision
Supervision
DC in 1
24VDC
+20%-10%
DC in 2
24VDC
+20%-10%
logic supply
24VDC out
(e.g. GPS 4500)
power
power
fail
U, I,
control
U, I,
control