Dmd20 Configurations; Features/Options Installed At Time Of Order; Feature Upgrades - Radyne DMD20 Installation And Operation Manual

Introduction
A full range of Industry Standard Interfaces is available for the DMD20. Interface types are
selectable from V.35, RS-232, RS-422/-530, ITU G.703, HSSI, ASI, and DVB/M2P.
The DMD20 LBST (Figure 1-2) offers additional features that are not included in the standard
DMD20 Modem. The features included in DMD20 LBST serves as an interface between the
indoor unit (DMD20 LBST) and the outdoor units (consisting of the BUC and LNB). The output
frequency of the LBST is 950 to 2050 MHz. It does not offer a 70 MHz output that is included in
the standard unit. The LBST can supply voltage and 10 MHz reference to the BUC and LNB via
the IFL Cable. The output from the Tx Port consists of the L-Band output frequency, high-stability
10 MHz reference, and either 24 or 48 Volts to the BUC. The Rx Port consists of the L-Band
input frequency, high-stability 10 MHz reference and 13, 15, 18, and 21 volts. The LBST has the
capability to enable and disable the BUC/LNB voltages and 10 MHz reference via the front panel.
In addition, monitoring features provide verification of system status. The LBST monitors both the
current and the voltage at the output of the Tx and Rx Ports, thus allowing the user to monitor the
status of both the indoor units and outdoor units.
Figure 1-2. DMD20 LBST Universal Satellite Modem Front Panel

1.1 DMD20 Configurations

The DMD20 can be configured in the following different ways:
•
features and options that are installed when the unit is ordered
•

feature upgrades

•
hardware options that the user can install at their own location
•
options that are installed to a unit that is sent to a Radyne facility

1.1.1 Features/Options Installed at Time of Order

Features installed at the time of ordering are the options pre-installed/initialized in the factory prior
to shipment. These can be reviewed from the front panel. Refer to Section 4, User Interfaces for
information on how to view these features.
Factory installed options are chassis and board configurations that are introduced during
manufacture.
1.1.2 Feature Upgrades
Feature Upgrades are a simple and quick way of changing the feature set of an installed modem.
Feature upgrades are how most DMD20 options are implemented. Features may be purchased
at any time by contacting a Radyne Corp. salesperson. Refer to Section 4 and Appendix D, for
information on how upgrade features.
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DMD20/DMD20 LBST Universal Satellite Modem
TM103 - Rev. 2.5