Nautel NX5 AM, Руководство по эксплуатации и техническому обслуживанию

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NX5 OPERATION & MAINTENANCE MANUAL DESCRIPTION
PAGE 3.1.6 VERSION 0.1 2015-08-01
 Accepts customer D-sub connections for digital remote inputs, digital remote outputs and
analog outputs.
 Accepts customer connections to complete the external interlock and transmitter (PDM)
inhibit circuits.
 Accepts customer Ethernet connection to allow access to the transmitter’s remote AUI feature.
 Accepts customer USB connections for audio playlist.
 Contains a microcontroller that: manages presets, scheduler and exciter changeover; controls
RF on/off status, controls RF symmetry, controls RF monitor level, stores network settings;
manages the transmitter’s response to certain alarm/fault conditions.
 Contains a CPLD that: performs basic logic operations on logic inputs to produce logic
outputs; latches off RF drive during certain alarm/fault conditions; routes program inputs and
synchronization signal to the exciter(s); muliplexes exciter A and B’s PDM outputs.
 Contains an ARM processor (host)that: runs the operating system and server that provides
remote AUI functionality; accepts USB and Ethernet inputs.
Local and Remote Interfacing
The transmitter’s local interface is provided via the front panel UI display (U3) - a 4 x 20 graphic LCD
display - and its adjacent keypad. The front panel UI contains a menu-based series of pages that serve
specific functions. Similar interfacing, as well as more advanced functionality, is available on a remotely
accessed AUI. The AUI is a flash graphic that can be accessed via an Ethernet connection on any web-
based PC or handheld device.
The UI interface PWB (A3) provides an interface between the front panel display (U3) and the control/
interface PWB (A4). It also contains the pushbutton switches (
RF ON , RF OFF and LOCAL/REMOTE )
and associated status LEDs that protrude through the front panel, below the UI.