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 10 - RB-SD1 Silence Detection Unit
Redbox User Handbook 10-3
10.3. Rear Panel Connections and Operation
Fig 10-3: RB-SD1 Rear Panel
10.3.1. A/B Inputs (Left and Right)
There are four XLR-3 inputs, two for channel A (Left & Right) and another two for
channel B (Left & Right). The XLR 3 pin sockets are used for the input channels and
are electronically balanced. They have the following connections: -
Pin 1: Screen.
Pin 2: Phase.
Pin 3: Non-phase.
10.3.2. Outputs
The stereo input consists of two XLR male connectors professionally balanced with
following connections: -
Pin 1: Screen.
Pin 2: Phase.
Pin 3: Non-phase.
10.3.3. Level Control
The level rotary switch (Level) adjusts the input sensitivity gain. The gain may be
varied from –15dB to -60db in 3db steps by adjusting the switch, which is accessible
on the rear panel.
Switch 0 1 2 3 4 5 6 7 8 9 A B C D E F
Level dBu -60 -57 -54 -51 -48 -45 -42 -39 -36 -33 -30 -27 -24 -21 -18 -15
10.3.4. Time Control
The time rotary switch (Time) adjusts the duration over which a silence is detected
before alarming and ranges from 2-30 seconds (0 – E in 2 second intervals) with F on
the switch being a 2 min 5 second silence. This maximum time can also be activated
or de-activated remotely via the remote connector.
Switch 0 1 2 3 4 5 6 7 8 9 A B C D E F
Seconds 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 125
REMOTE ALARMS
L - OUTPUT - RL - INPUT B - RL - INPUT A - R
LEVEL
TIME
MODE
Disconnect the mains supply before removing the equipment covers.
This product must be earthed
10.3.1 10.3.2 10.3.3 10.3.5
10.3.6
10.3.4