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12
GE N E R AL IN TERFACES
Rear Panel Connections and Operation
LSO Expansion
Connector
Mix Input
Connector
Mix Input
ON/OFF Switch
Fig 12-3: RB-OA3 Rear Panel.
Installation Guide for the RB-OA3
Setting the Unit's Identity Using The Mode ID DIP Switches
Multiple RB-OA3 units can be combined to offer expansion of either the number of
studios (STUDIO EXPANSION), or the number of stereo audio pairs available to switch (BUS
EXPANSION), or both (STUDIO & BUS EXPANSION). Up to 4 units can be connected together
and each unit will have a different Mode ID.
The identity of the unit is defined by setting the first two MODE ID DIP switches as per the
following table:
DIP
Switch 1
OFF
ON
OFF
ON
Fig 12-4: RB-OA3 Unit Identity Definitions.
If you have just a single RB-OA3, define it as the MASTER, i.e. DIP switches 1 and 2 set to OFF.
For more information on the expansion modes, see pages 72-74.
If you would like to change the identity of a unit, it will have to be reset.
Note: The recommended time to change the unit ID is on power down.
Setting The Boot Up Mode
On first powering up the RB-OA3, the unit will default to giving transmission control to
Studio 1. The third DIP switch controls what studio the unit will boot to on subsequent
initialisations. The different modes provided are:
70
Transmission
Output Connector
Studio 1 Audio Connector
Studio 2 Audio
Connector
Studio 3 Audio
Connector
DIP
Unit Identity Definition
Switch 2
OFF
MASTER
OFF
STUDIO EXPANSION SLAVE
ON
BUS EXPANSION SLAVE
ON
STUDIO & BUS EXPANSION SLAVE
Studio 2 Control
Connector
Studio 1 Control
Profanity Delay
Connector
Studio 3 Control
Connector
Serial
Serial
Port 1
Port 2
Fuse
IEC Mains
Control
Input
Mode Select
Switches
Redbox User Handbook No 3
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