Om20 Configurations - Radyne OM20 Installation And Operation Manual

OM20 Universal Outdoor Modem
The OM20 supplies DC voltage and 10 MHz reference to the BUC and LNB via the IF Cables.
The output from the TX Port (J8) consists of the L-Band output frequency, high-stability 10 MHz
reference, and an optional 24 or 48 Volts to the BUC. The RX Port I/O (J7) consists of the L-
Band input frequency (from the LNB), high-stability 10 MHz reference and 13, 15, 18, and 21
volts. The OM20 has the capability to enable and disable the BUC/LNB voltages and 10 MHz
reference.
In addition, monitoring features provide verification of BUC and LNB status. The OM20
monitors both the current and the voltage at the output of the TX and RX Ports, thus allowing the
user to monitor the operating status of BUC and LNB.
Redundancy for the OM20 is supported by the OMS11, Outdoor Modem Switch. OMS11 offers
redundancy for Data and supplies power for switching TX and RX Waveguide switches. For
additional information, refer to TM133 OMS11 Operational Manual.
Radyne's OM20 Ethernet Graphical User Interface (GUI) offers browser based control of the
OM20, BUC, and LNB with numerous user-friendly GUI programmable functions (see Figure 1-
2). The OM20 GUI provides selectable functions for different services: Intelsat IDR and IBS, as
well as closed networks. All of the configuration and Monitor and Control (M&C) functions are
available using the GUI (Ethernet J4) or is also available using the conventional RS-232/485
terminal port (J2). Operating parameters, such as variable data rates, FEC Code Rate, modulation
type, IF Frequencies, IBS/IDR Framing, and interface type can be readily set and changed by
earth station operations personnel, using either the GUI or terminal interfaces.
1.1

OM20 Configurations

The OM20 can be configured in the following different ways:

Features and options are installed as specified when the unit is ordered from the factory,

Optional software feature upgrades in the future while deployed in the field,

Future hardware options can be installed to a unit that is sent back to a Radyne facility.
MN-OM20– Revision 5
Figure 1-2. OM20 Outdoor Modem Upper GUI Screen
Introduction
1–2