User Manual
CXE280
59300460
Rev.002
17.12.2013
6(20)
Interfaces
Underneath the CXE280 amplifier there are three cable connection points: input
and two outputs. The amount and function of actual connectors varies with the
chosen configuration. All coaxial connection points have a standard PG11
thread and they accept a KDC type adapter or connector. Available connector
types are F, IEC, PG11, 5/8” and 3.5/12.
8905010
Figure 2. Centre conductor length
Powering
The supply voltage of the remote powered amplifier (26...65 V AC or ± 30...90 V
DC) can be fed through either of the output ports (Figure 1 pos. 3 & 4) or the
input port (Figure 1, pos. 1). Make sure the remote powering jumpers (Figure 4,
pos. 20 & 21) are in the correct positions for remote powering. Refer to
External power can also be fed through the amplifier into the network
by moving remote powering jumpers of the output ports to “on” position.
Maximum feed-through current is 3 A per port (6 A total).
Note that the external wiring connected to terminals that are hazardous live
requires installation by an instructed person. Because the amplifier is not
equipped with an all-pole mains switch, the powering shall be carried out in
accordance with all applicable installation rules. The power intake of the remote
powered amplifier may also be done externally via the cable feed-through that is
located on the upper right corner of the amplifier (Figure 3). The protective fuse
is located on the left hand side of the power supply board.
8904054
Figure 3. Remote cable connector
The locally powered amplifier is connected to the mains voltage of
180…255 V AC via its own power cord. The mains power supply is double
shielded and does not require separate grounding. However, the amplifier
housing has to be grounded from the grounding point. The supply voltage fuse
is located on the upper right corner of the amplifier, beneath the shroud of the
power supply unit.
AC
GND
led