Introduction
3
1.7 Power Supply
Both units are powered by an internal mains-fed power supply. The mains input voltage is
100-250VAC, 50/400Hz. An alternative -48VDC power supply is available on all units as a
custom order item. The power consumption of each model in the range is shown below,
together with the current consumption over the operating voltage ranges.
An alternative -48VDC or -24 VDC power supply is available on most units as a custom order
item.
The supply definition of the -48VDC supply is minus 36 to minus 72 VDC, 200-100 mA. DC
power is supplied via a 3 pin Buccaneer socket fitted to the rear panel.
The supply definition of the -24VDC supply is minus 12 to minus 36 VDC, 700-125 mA. DC
power is supplied via a 2 pin Buccaneer socket fitted to the rear panel. The surrounding label
is cloured blue for the -12V/-24 option.
A Buccaneer plug is supplied with the unit for customer’s own wiring. The connections are
labelled on the rear panel of the unit as shown in the schematics below.
Pin1
-48V
Pin5
Pin3
0V
VDC IN
40-72V/200mA
Pin2
0V
VDC IN
12-24V/700mA
Pin5
12-24V
Figure 1. 3 Buccaneer DC sockets
The units must be connected to safety earth for correct operation. The FC power supply
should be connected to a supply socket that is physically located close to the unit and is
easily accessible.
The power consumption of the units is shown below, together with the current
consumption over the operating voltage ranges.
power consumption
Product
Watts Power
Consumption
100-250 VAC
Current Range
mA
-36 to -72 VDC
Current Range
mA
-12 to -36 VDC
Current range
mA
MTU9230 & MTU9240 6.0
60 - 25
200 - 100
600-200
