APEX
™
Exciter Incorporating FLO
™
Technology
Introduction
Physical Description
Page: 1-2
888-2604-001
03/08/07
WARNING: Disconnect primary power prior to servicing.
1.3
Physical Description
The APEX exciter consists of a single rack mounted chassis with the analog section
available from the top of the exciter and the digital section available from the bottom.
The exciter is normally mounted in the transmitter on slides, permitting it to be extended
forward out of the cabinet for service.
The exciter is 5.25" high and 19" wide to allow mounting in a 3 rack unit space in a
standard 19" EIA rack. A minimum of 25" depth in the mounting rack is needed to allow
space for the exciter and connecting cables.
The exciter contains a cooling blower mounted in the rear of the top side. Cooling air is
drawn into the assemblies from the rear and forced over the circuits.
The top and bottom covers may be removed to provide access to the digital and analog
circuit boards, however, there are no adjustments on the circuit boards. The upper side of
the chassis is the analog section, and the bottom side of the chassis is the digital section.
Figure 5-1 shows the top (analog) view and Figure 5-2 shows the and bottom (digital) view
of the exciter with the covers removed. These drawings provide the names and locations of
the various circuit boards of the exciter.
All system interconnections are via the rear panel, see Figure 1-1. An RS232 diagnostic
port is provided on both the front and the rear panels.
Figure 1-1 Rear Panel View APEX Exciter Incorporating FLO Technology
Refer to Figure 1-2 for a picture of the exciter. A front mounted (user interface) touch panel
is provided for quick and easy configuration and operation, with minimum internal user
adjustments. Extensive self diagnostics are included to aid the user.
AC Power
Off/On Switch
