Table of Contents
Advertisement
Installation
(Operation Mode). Enter the menu and select TX only. This will mask the receive faults
and receive stored faults in the faults menu.
For a RX only system, the modulator (0773-X) is removed. Enter the Utility Menu on the
front panel and select OP MODE). Enter the menu and select RX only. This will mask
the transmit faults and transmit stored faults in the faults menu.
The modem interface is configured by the selection of the data interface card. Refer to
Section 4.2 for discussion on the data interfaces.
The modem data/code rate is configured by the installation of a daughter card (0715 or
0930) on the modulator and a daughter card (0698 or 0929-X) on the demodulator. The
UTILITIES function must be set up to be compatible with the daughter cards. Refer to
Section 3.1.8 for information on the UTILITIES function. The modem will be set up to
match the daughter cards when it is shipped from the factory.
2.4 System Installation
After unpacking the modem per Section 2.1, installation of the modem can be done as
follows:
a. Mount the modem chassis in the assigned position in the equipment rack.
b. Connect the cables on the rear panel to the appropriate location. Refer to Section
c. Open the front panel and verify the three (3) main cards and the M&C and Data
d. Before turning on the power switch, read and become familiar with Section 3.1,
e. Turn on the power switch that is located inside the front panel.
f. Check for proper TX signal level and spectrum.
g. Check for proper RX signal level and spectrum.
h. If there is any problem on installation refer to Section 6.0 for trouble shooting
2-2–6
2.2 for connector pinouts, placement, and function.
Interface cards are properly seated. Refer to Figure 1-3 for position of the cards.
When the cards are installed correctly, the color of the card guides on the chassis
will match the color of the card ejectors on the cards.
the Front Panel Operation.
the system.
SDM-309B Satellite Modem
MN/U-SDM309B Rev. #
Advertisement
Table of Contents
