Handbook

Table Of Contents
70
Redbox User Handbook No 3
GENERAL INTERFACES
GENERAL INTERFACES - RB-OA3
12
Rear Panel Connections and Operation
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 oer 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 dierent Mode ID.
The identity of the unit is dened by setting the rst two MODE ID DIP switches as per the
following table:
DIP
Switch 1
DIP
Switch 2
Unit Identity Denition
OFF OFF MASTER
ON OFF STUDIO EXPANSION SLAVE
OFF ON BUS EXPANSION SLAVE
ON ON STUDIO & BUS EXPANSION SLAVE
Fig 12-4: RB-OA3 Unit Identity Denitions.
If you have just a single RB-OA3, dene 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 rst 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 dierent modes provided are:
Mix Input
Connector
Studio 1 Audio Connector
Studio 1 Control
Connector
Profanity Delay
Control
LSO Expansion
Connector
Serial
Port 1
Serial
Port 2
Fuse
IEC Mains
Input
Mode Select
Switches
Transmission
Output Connector
Studio 3 Audio
Connector
Studio 2 Audio
Connector
Studio 3 Control
Connector
Studio 2 Control
Connector
Mix Input
ON/OFF Switch