Bird Technologies ACMI - Manual (Page 19)

7
Power/Alarm Connector
Note: The power cable must be <50m in length.
Connect the external power supply here. Pin numbers and descriptions are given
in Figure 3.
CAUTION
The input voltage must be clean and stable. Ensure that the input voltage
does not surge and does not contain spikes. Failure to comply may result in
permanent damage to the instrument.
CAUTION
The maximum input voltage differential is 72 V for High Voltage models, 36
V for Medium Voltage models, and 18 V for Low Voltage Models. Do not
apply an input voltage differential greater than the voltage limit for the
model. Failure to comply may result in permanent damage to the
instrument.
High voltage models (ACMI-x-xxxxxH and ACMI500-x-xxxxxH) require 36 to 72
VDC (48 V nominal) @ 2 W. Either terminal (10 or 11) may be connected to DC
input ground, as dictated by the power supply requirements.
Medium voltage models (ACMI-x-xxxxxM and ACMI500-x-xxxxxM) require 18 to
36 VDC (24V nominal) at 2 W. Either terminal (10 or 11) may be connected to DC
input ground, as dictated by the power supply requirements.
Low voltage models (ACMI-x-xxxxxL and ACMI500-x-xxxxxL) require 9 to 18 VDC
(12 V nominal) @ 2 W. Either terminal (10 or 11) may be connected to DC input
ground, as dictated by the power supply requirements.