Removal And Assembly; Mounting Considerations - Radyne DMD20 Installation And Operation Manual

DMD20/20LBST Universal Satellite Modem
2.3

Removal and Assembly

The Modem is shipped fully assembled. It does not require removal of the covers for any
purpose in installation.
Always ensure that power is removed from the before removing or installing
any optional modules. Failure to do so may cause damage to the equipment.
CAUTION
Carefully unpack the unit and ensure that all of the above items are in the carton. If the available
AC mains power at the installation site requires a different cord set from the one included in the
package, then a suitable and approved cord set (for the country where the equipment is to be
installed) will be required before proceeding with the installation.
Should the Power Cable/AC Connector be of the wrong type for the installation, either the cable
or the power connector end should be replaced. The power supply itself is designed for universal
AC application. See specifications for appropriate voltages and currents.
2.4

Mounting Considerations

The can be installed within any standard 19 inch equipment cabinet or rack. The unit is a one
rack unit (RU) mounting space (1.75 inches) vertically and 19 inches of depth and requires a
minimum rack depth of 22 inches for cabling. The rear panel of the DMD50 is designed to have
power enter from the left and IF Cabling enter from the right when viewed from the rear of the
unit. Data and control cabling can enter from either side based on data interface option.
unit can be placed on a table or suitable surface if required
When mounted in an equipment rack, adequate ventilation must be provided. The ambient
temperature in the rack should be between 10° and 35° C, and held constant for best equipment
operation. The air available to the rack should be clean and relatively dry. The DMD50 units may
be stacked one on top of the other up to a maximum of 10 consecutive units before providing one
RU of space for airflow. Demodulator units should not be placed immediately above a high heat
or EMF generator to ensure the output signal integrity and proper receive operation.
Do not mount the in an unprotected outdoor location where there is direct contact with rain, snow,
wind or sun. The is designed for indoor applications only.
Shielded cables with the shield terminated to the conductive backshells are required in order to
meet EMC directives. Cables with insulation flammability ratings of 94 VO or better are required
in order to meet low voltage directives.
The unit CANNOT have rack slides mounted to the side of the chassis.
Cooling fans are mounted on the right-hand side of the unit.
If the unit is to be mounted in a rack, ensure that there is adequate clearance
IMPORTANT
for ventilation, particularly at the sides. In rack systems where there is high
heat dissipation, forced air cooling must be provided by top or bottom
mounted fans or blowers. Under no circumstance should the highest internal
rack temperature be allowed to exceed 50°C (122°F).
MN-DMD20-20LBST Revision 14
PROPER GROUNDING PROTECTION REQUIRED: The installation
instructions require that the integrity of the protective earth must be
ensured and that the equipment shall be connected to the protective earth
Installation
The
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