Manual
Table Of Contents
- Analogue Redbox User Handbook rev 1.92
- Contents
- Figures
- Warranty, Safety & Installation Information
- RB-MA1 Single & RB-MA2 Dual Microphone Amplifiers
- RB-SM1 Single & RB-SM2 Dual Stereo To Mono Converter
- RB-UL1 Single, RB-UL2 Dual & RB-UL4 Quad Stereo Unbalanced
- RB-LU4 Quad Stereo Balanced To Unbalanced Converter
- RB-BL2 Single & RB-BL4 Dual Bi-Directional Matching Converte
- RB-SL2 Twin Mono, or Stereo, Limiter
- RB-DA6 6 Way Stereo Distribution Amplifier
- RB-HD1 Stereo Headphone Amplifier
- RB-HD6 6 Way Stereo Headphone Distribution Amplifier
- RB-SD1 Silence Detection Unit
- RB-PMX4 10 Input, 4 Output Analogue Preset Mixer
- RB-LI2 Stereo Line Isolation Unit
- RB-PLI6 6 Way Mono Passive Line Isolation Unit
- RB-SS10 10 Way Stereo Analogue Source Selector/Mixer
- RB-LC3 3 Way Light/Power Controller
- Glossary
- Connectors And Cabling
- Index
Chapter 15 - RB-LC3 3 Way Light/Power Controller
Redbox User Handbook 15-1
15. RB-LC3 3 Way Light/Power Controller
15.1. Introduction
Fig 15-1: RB-LC3 Front Panel
The RB-LC3 is a triple output switching unit for controlling external mains indicators,
primarily studio status lights for broadcasting applications, such as On-Air, Mic-Live
and Rehearsal/Live lights. Each output can be individually controlled by one of three
remote inputs (pulled high, or low), by a telephony input (when ringing, or off-hook or
both), or a combination of two inputs (to control two outputs, e.g. for Rehearsal/Live
situations). The type of control is set using a 12 way DIP switch (4 switches for each
output allowing 16 different settings, 14 for control type selection and 2 for operating
mode selection).
All connections are on the rear panel. The three IEC outputs are controlled by zero-
cross point drivers. When an output is activated, the A.C. voltage level at that output
will be equal to the mains input voltage used to power the unit.
External control of the switched mains outputs is via the 15 way D-type plug
connector.
The telephone Line input and Handset output are via two RJ11-4 type connectors. The
telephone connections are wired pin to pin from Line to Handset except when the
remote Ring Mute control input is asserted. In this case the ring signal to the Handset
is muted. The status of the telephone Line is continually monitored so that Handset
ringing and off-hook conditions can be indicated.
A pre-set potentiometer on the rear panel controls the flash rate of the output when
the appropriate mode is selected. Neon indicators on each power socket show the
status of the mains output.
An LED power indicator on the front panel displays the incoming power supply
connection.