Monitor & Control - Comtech EF Data UT-4579 Installation And Operation Manual

UT-4579 X-Band Up Converter
Introduction
OPERATION for more information about the UT-4579's use in redundant
applications. RF signal processing is accomplished when the 70/140 MHz IF input
is mixed in the first mixer with an 1150 MHz IFLO signal. The IFLO is locked to a
5/10 MHz reference oscillator. (The first mixer is located in the Signal Path
Assembly.)
The intermediate IF of 1220 MHz is mixed in the second stage mixer with a 6680
to 7180 MHz synthesizer signal to provide an RF output frequency of 7900 to
8400 MHz in 125 KHz fine tuning steps. The synthesizer is also locked to the 5/10
MHz reference oscillator. (The second mixer is located in the converter Signal
Path Module, and the synthesizer consists of the Coarse/Fine Step Module and
Sum Loop Module.)
1.2.3 Monitor & Control
The Monitor & Control Assembly is designed to monitor the functions of the
UT-4579, and provide the local and remote control command inputs to the
converter.
For Local Monitor & Control: Local operator input commands and the status of the
UT-4579 display on the front panel Vacuum Fluorescent Display (VFD). The unit
indicates converter faults via the front panel "FAULT" and "STORED FAULT" LED
indicators. Use the VFD and local keypad to browse and manage the stored events
and faults log.
For Remote Monitor & Control: All configuration control, status retrieval and
adjustments are available with connections to the converter rear panel:
• A DB-9F selectable EIA-232C/EIA-485 'J1 | COM1' female connector
interface provides for serial-based remote control communications. ASCII
commands and queries are issued through the serial remote interface.
• A 100BaseTX 'Ethernet' female RJ-45 port provides Ethernet-based
remote monitor and control capability via SNMP, Telnet, or the HTTP
(Web Server) Interface.
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MN/UT4579.IOM
Revision 1