Modulator Checkout; Initial Power-Up; Factory Terminal Setup - Radyne DMD20 Installation And Operation Manual

DMD20/20LBST Universal Satellite Modem
2.6

Modulator Checkout

The following descriptions assume that the unit is installed in a suitable location with prime AC
power and supporting equipment available.

2.6.1 Initial Power-Up

Before initial power up of the unit, it is a good idea to disconnect the transmit
output from the operating ground station equipment. This is especially true if
the current Modulator Configuration Settings are unknown, where incorrect
settings could disrupt the existing communications traffic. New units from
CAUTION
the factory are normally shipped in a default configuration which includes
setting the transmit carrier off.
Turn on the unit by placing the Rear Panel Switch (located above the power entry connector) to
the On Position. Upon initial and subsequent power-ups, the Microprocessor will test itself and
several of its components before beginning its Main Monitor/Control Program. These power-up
diagnostics show no results if successful. If a failure is detected, the Fault LED will illuminate.
The initial field checkout of the modem can be accomplished from the Front Panel or in the
Terminal Mode. The Terminal Mode has the advantage of providing full screen access to all of
the modem's parameters, but requires a separate terminal or computer running a Terminal
Program. The Terminal Mode is enabled from the front panel in the System M&C Submenus.

2.6.2 Factory Terminal Setup

The factory terminal setup is as follows:
Emulation Type:
Baud Rate:
Data Bits:
Parity:
Stop Bits:
MN-DMD20-20LBST Revision 14
VT-100 (can be changed)
19.2 K (can be changed via Front Panel)
8
No Parity (Fixed)
1 Stop Bit
Installation
2–6