Manual
Table Of Contents
- part i INTRODUCTION
- 1 GENERAL INFORMATION
- 1.1 Introduction
- 1.2 Product Type Numbers
- 1.3 Abbreviations
- 2 Physical organisation
- 2.1 Configurations
- 3 System Description
- 3.1 Introduction / Overview
- 3.2 Transmitters / Modulators
- 3.3 Monitors / Transmitter Control
- 3.4 Power Systems
- 3.5 Remote control system
- 3.6 Remote Maintenance Monitoring (RMM)
- 3.7 RMM Access
- 3.8 Local Keyboard/Display Functions
- 3.9 Document structure
- 4 Technical Specifications
- 4.1 Signal Requirements
- 4.2 Environmental characteristics
- 4.3 EMV-charakteristics
- 4.4 Mechanical characteristics
- 4.5 Power supply
- 5 Electrical installation
- 5.1 Marker beacon cabinet
- 5.2 Tower equipment
- 6 Antenna
- 6.1 Antenna NM 3561 / NM 3562 For Ils Marker Beacon
©1999 Navia Aviation AS 21464-5 System Description
USER MANUALNORMARC 7050
MARKER BEACON
3-5
The local keyboard/display allows readings and controls through an LCD display and a seven-
button keypad. This gives access to the RMM functionality without the need for a PC.
3.7 RMM Access
Access to the RMM system is controlled by multiple hardware and software access controls.
One password is required for each access level, i.e. one password for level 1, two for level 2
and three for level 3. Optional hardware controls may inhibit writing in the upper access lev-
els.
Access level 1
• Readout of all the monitor values, warning and alarm limits.
• Readout of all the maintenance values and warning limits.
• Readout of all the delays.
Access level 2
• TX1 and TX2 : morse normal, continuous or off.
• TX1 and TX2 : test signals 50% depth of mod. and 50% RF level.
• Diagnostics.
Access level 3
• Settings of all the monitor warning and alarm limits.
• Settings of all the maintenance warning limits.
• Settings of all the delays.
3.8 Local Keyboard/Display Functions
Through a menu based interface all main commands, adjustments and monitor limits are
accessible from the front panel keypad and LCD display. In addition a quick read function
gives readout of all main monitor parameters at a glance.
3.9 Document structure
In Figure 3-3 the document structure is shown. The upper tree is the contents of the cabinet,