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Redbox Embedder/De-embedder User Handbook
4
R B - V H C M A 4
RB-VHCMA
4
The Network connectors pin assignations are as follows:
Network Connector (RJ-45)
Pin No.
Function
1
Transmit Data (Positive)
2
Transmit Data (Negative)
3
Receive Data (Positive)
4
No connection
5
No connection
6
Receive Data (Negative)
7
No connection
8
No connection
SDI Input
The SDI input is connected using a single female BNC and has a 75Ω input impedance. It is
a triple rate SDI receiver with automatic input rate detection and equalisation. It supports
the full range of 3G, SD and HD standards from NTSC and PAL up to 1080p 60Hz. The status
of the input is displayed on the status LEDs on the front panel. When the SDI input rate
and format has been detected, the SDI lock indicator will be lit.
SDI Outputs
The two SDI outputs are connected using the two female BNC connectors on the rear
panel. They have a 75Ω output impedance in accordance with the SMPTE standard and are
both re-clocked and independently buffered. Each output can be configured separately for
embedding and group deletion settings.
Audio Connections
Analogue Audio Inputs
The RB-VHCMA4 has four analogue inputs grouped into a single embed bank. The
analogue inputs are converted to digital audio using high performance, low noise stereo
24-bit ADC’s. They are connected using balanced connections through the D-type
connectors or unbalanced connections through BNC connectors, all are available on the
rear panel. The balanced analogue inputs can be wired unbalanced by connecting non-
phase (-) pin to the ground pin for that input, and then connecting the audio signal to the
phase (+) pin.
The two input types are connected internally, so please ensure that only one type of
connection is used per input.
