2-8 | Cyber Hardened IBUC 2, IBUC 2e, IBUC 2G, IBUC R, IBUC G Operations Manual: Functional Description
DC Supply
DC power can be supplied through the N-connector or F-connector of the L-band
input (labeled J1) or through the external power connector (labeled J3). For the high-
power units, DC power is supplied through the six-pin circular connector (labeled J3)
of the DC input. Higher-power units (such as Ku-band 20 watts and higher, C-band 30
watts and higher, X-band 25 watts and higher, or Ka-band 16 watts and higher) cannot
accept DC input through the L-band input connector due to the higher current draw.
Terrasat IBUCs have several supply voltage options. The standard configuration is
48 VDC. However, a 24 VDC option is available for lower power units. Refer to the
datasheets in Appendix D for more information. This choice of 24 VDC or 48 VDC is
available only when the IBUC is ordered and configured at the factory. The operating
voltage range for the 24 VDC option is 20 VDC to 28 VDC. The operating voltage
range for lower-power units with 48 VDC is 37 VDC to 60 VDC. The operating
voltage range for higher power units is 42 VDC to 60 VDC. DC-powered units are
configured at the factory to have floating input.
Terrasat offers the low power, low energy consumption IBUC 2e. These units are DC
powered only via coaxial cable. While lower power versions of the IBUC 2e can
support voltage swings from 18 VDC to 75 VDC, higher power versions can only
support swings from 37 VDC to 60 VDC. More information about the operating
voltage range maximum power consumption for these units can be found in the
datasheet in Appendix D.
AC Supply
Some IBUCs are available with optional AC power, delivered through connector J3,
as seen in Figure 2.3. Table 2.6 lists the voltage ranges for different bands and power
levels.
Table 2.6
AC Supply Operating Voltage Ranges
Voltage Band Watts
100 VAC to 240 VAC C-band 5 watts to 125 watts
200 VAC to 240 VAC C-band 150 watts to 400 watts
100 VAC to 240 VAC X-band 5 watts to 125 watts
200 VAC to 240 VAC X-band 150 watts to 400 watts
100 VAC to 240 VAC Ku-band 4 watts to 125 watts
200 VAC to 240 VAC Ku-band 150 watts to 400 watts
100 VAC to 240 VAC Ka-band 5 watts to 80 watts
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