Interface Panel | Siemens RL-854 guide

RL-854 Radio Control Unit
Type I, Style A	Description

Main Assembly (contd.)

The secondary power source for T1 is 25.2 V ac, center-tapped. This voltage is applied to the Decoder PCB, which contains a full-wave rectifier. Capacitor C1 provides the filtering for the rectifier via connector J2 pin 9, which is 17.5 V dc and acts as the DC source for relays and lamps. All relays have a 62-Ωresistor in series with their coil to drop the coil voltage to 12 V dc.

Interface Panel

See Figure 3. The RL-854 Interface panel is used to interface an air-to- ground Radio Control unit with an L-821 control panel and L-828 constant current regulator (CCR). The CCR control voltage can be either +48 V dc or 120 V ac.

 2001 Siemens Airfield Solutions, Incorporated	96A0027L	Page 14
All rights reserved	Issued 5/01

Image 19

Siemens RL-854 manual Interface Panel

Contents

RL-854 Radio Control Type I, Style a Rev Description EC No Checked Approved Date Record of Changes Table of Contents List of Figures Warranties Disclaimers RL-854 Radio Control Unit Type I, Style a Safety Safety Symbols Intended Use Safety Symbols contd Qualified Personnel Operation Installation Action in the Event of a System or Component Malfunction Maintenance and Repair Introduction Description Introduction contd Options Radio Controller Power Handling CapabilityHeater Receiver Equipment Specification DataMain Assembly Cabinet Equipment Specification Data Number Part Description Quantity Description Part Number Interfacing Radio Controller Radio Control RestrictionsIntensity Control Periods Microphone Clicks Intensity Control contdClicks General Theory of Operation Main Assembly contd Interface Panel Interface Panel contd Automatic Radio Control Other L-821 Configurations Installation Unpacking Installing Standard RL-854 Contd Tighten jam nuts against the hub to secure the radials Assembling Antenna Assembling Antenna Safety Precautions Installing Antenna Mounting Antenna Installing RL-854PR Radio Controller Operation Incremental Relay Option Installing RL-854PR Radio Controller contd Decoder PCB Controls Controls and IndicatorsStartup Procedures Indicators Startup Procedures contd Startup Procedures contd Maintenance Introduction Switch Receiver Frequency Setting Problems and Possible Causes Solutions Troubleshooting Description Part Number Troubleshooting contdParts Using the Illustrated Parts List RL-854 Radio Control Unit Part Numbering System Type RL-854 Main Assembly Parts ListHeater RL-854 Motherboard Assembly Parts List RL-854 Main Assembly Parts RL-854 Motherboard Assembly Parts List contd DS1 RL-854 Control Board and Fuse Assembly Parts List Item No Description Part Number Optional Parts RF Frequency Switch Settings for Frequency Control of Receiver PCB A-2 A-3 A-4 A-5 A-6 A-7 A-8 A-9 A-10 A-11 A-12 A-13 A-14 A-15 A-16