Contemporary Control Systems AI-SRVR Servers to Ethernet Installation Guide - Manual (Page 6)

TD000200-0IH
6
pOwERING THE AI-SRVR
See the specifications for power requirements. Apply low voltage to the
four-pin removable keyed connector using one the powering methods.
DC Powered
The unit accepts 10–36 VDC. The “0Vdc” connection is connected to
chassis within the unit. Input connections are reverse-voltage protected.
Figure 7 — DC Powered Figure 8 — Redundant DC Power
Redundant DC Powered
For backup power, redundant diode-isolated DC power inputs are provided.
Either power supply must be capable of powering the unit. Do not assume
that input currents from the two supplies will be balanced.
Figure 9 — AC Powered Figure 10 — AC Power with
Grounded Secondary
Figure 11 — AC Power
with Battery Backup
AC Powered
The AI-SRVR can be powered by 8–24 VAC from the secondary of a
low-voltage transformer. If using a grounded secondary transformer,
refer to Figure 10. If needed, two auxiliary power supplies are available
from Contemporary Controls: the AI-XFMR is for 120 VAC primary
power and the AI-XFMR-E uses 230 VAC.
AC Powered with Battery Backup
You can apply power from both an AC and DC source (usually a battery).
If the AC source fails, the unit will operate from the battery — but separate
provisions are required for charging the battery.
— Figure 11
— Figure 9
— Figure 8
— Figure 7