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 13 - RB-PLI6 6 Way Mono Passive Line Isolation Unit
Redbox User Handbook 13-1
13. RB-PLI6 6 Way Mono Passive Line
Isolation Unit
13.1. Introduction
Fig 13-1: RB-PLI6 Front Panel
The RB-PLI6 6 way mono passive line isolation unit is used to isolate audio signals
from inter area ground hum loops, which could be caused by equipment being
powered by different mains power supplies or phases on the same supply.
The input and output are connected together through a transformer and the unit has
internal jumpers allowing the inputs and/or outputs to be balanced about ground. The
unit requires no mains power for operation.
This unit is useful where audio is required to be driven over a relatively long length of
cable. By isolating the signal using transformers, ground loop currents that can be
present in non-isolated signals, are eradicated completely.
13.2. System Block Diagram
Fig 13-2: RB-PLI6 System Block Diagram
Input
x6
Output
Ground Balancing