TM 11-5895-846-14
EL6PEO6I
Figure 6-7. CDF Program Pin Crosspoint Switch Function
between the entry panel/MDF (user) side and the patch
are nomenclatured in accordance with associated
panel (equipment) side.
signals passing through each panel. Patch panels
crosspoint switch function by the insertion of a program
shown in the terminal functional block diagram, figure
pin. Both user side and patch panel side of the CDF
matrix board are marked with destination information for
TTY/low level patch panel, TTY/FSK patch panel and
operator reference.
the IF patch panel.
h. Voltage Regulation Monitor Panel. A voltage
(1) VF patch panel. Location of the VF patch
regulator monitor panel, located at the bottom of rack 5,
panel is shown in figure 6-4. The electrical interface of
is provided to monitor the voltage output of the 115 volt
this panel within the CSS network is shown in figure FO-
regulated supply which is mounted behind the data patch
4. This termination point provides access to both
panel in rack 6. The voltage regulator is used to power
equipment and line sides of each individual signal
off-line test equipment such as the spectrum analyzer,
processing module for monitoring and maintenance
the data test set, and the RF power meter, since these
purposes. This facility also permits emergency routing of
units require closer tolerance input voltage than other
signal processing equipment to specific user lines when
equipments in the terminal. The VR monitor panel
required. The jackstrips are arranged with monitor line
contains a meter-relay unit which indicates the regulators
and equipment appearances on a 4-wire full-duplex
output voltage, and senses over-voltage or under voltage
basis. When used with 2-wire circuits, the uplink
according to limits preset by markers on the face of
transmit pair is active.
(2) Data patch panel. The data patch panel
meter. If out of tolerance voltage occurs, the meter-relay
causes a fault lamp on this panel to light. The panel also
provides the interface point for all digital equipment
provides an outlet for regulated 115 Vac.
within the CSS complex, as shown in figure FO-4.
i.
Patch Panels. Patch panels included as a
Access to all digital inputs and outputs is available at this
portion of the CSS equipment complement serve as
facility for test and monitoring purposes. The data patch
interface points for various equipments and provide
panel is located in CSS rack 6 as indicated in figure 6-4,
access to numerous circuits for monitoring processes.
adjacent to its supporting digital test set. Looping plugs,
Routing of equipments and selection of redundant units
patch cords, parallel networks, and looping plug with
are accomplished at appropriate panels. Patching is
cable adapters are provided for use
accomplished by patch cords and looping plugs supplied
with each type of panel. Five major patch panel
assemblies are included within the CSS racks. These
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