Fig 12-13: Rb-Oa3 Mix Input Connector; Fig 12-14: Rb-Oa3 Mix Input Connector Details - Sonifex Redbox RB-SS10 User Handbook Manual

12
GE N E R AL IN TERFACES
Mix Input Selection
The interface is a 9 pin female D-type and is used to mix a stereo feed into the transmission
path by using the MIX INPUT ON/OFF SWITCH, push button (rear panel, located next to the
mix input). This could be an emergency announcement system, PC automation playout
system, or other audio source.
Note: If this input is not being used it must either be switched off using the push-
button, or terminated by connecting pins 2 & 7 together and pins 4 & 9 together. If it is
not terminated the noise on the transmission output can be worse by 3-6dB.
Mix Input Connector Details
1 Mix Input Right Phase
2 Mix Input Right Non Phase
3 Mix Input Left Phase
4 Mix Input Left Non Phase
5 NC
6 Analogue Ground
7 Impedance Connection
8 Analogue Ground
9 Impedance Connection
Fig 12-13: RB-OA3 Mix Input Connector Definitions.
5
9

Fig 12-14: RB-OA3 Mix Input Connector Details.

80
1
6
If not being used these pins
must be connected
Mix Input Left
Mix Input Right
If not being used these pins
must be connected
Redbox User Handbook No 3