User guide

© 2009 Wohler Technologies, Inc. All rights reserved.
14
AVMFlex58W Series User Guide
Rear Panel
CVBS In A and B: Each of these two female BNC connectors (CVBS A,
IN and CVBS B, IN) accept standard CVBS (Composite Analog) video
signals and are configured for 75 Ω impedance connections. Note that
video input selection is linked to the audio input selection.
CVBS Loop Out A and B: Each of the two loop output connectors
(CVBS A and CVBS B) provide passive signal-through connections
from the associated CVBS IN connector to down-stream equipment.
Note that these outputs function even if power to the AVMFlex58W
unit is turned off.
Balanced Audio In A and B: These female XLR connectors accept
standard analog audio signals and are configured for 40K Ω impedance
connections. Left and Right inputs are provided in each of the two
input sections (Balanced In A and Balanced In B). Note that audio input
selection is linked to the video input selection.
AVMFlex58W-SA Rear Panel
Figure 1–5 AVMFlex58W-SA Rear Panel
RS233 (DB-9): This connector is used for uploading software upgrades
into the 910935 audio/video demux board.
Digital Gain Calibration (Dip Switch): You can set the SDI input gain
calibration (the analog level that corresponds to a given digital input
value) using this two-position dip switch. The factory setting is +4 dB
(analog) = -20 dBFS (digital). See Figure 1–1 on page 10 for details.
SDI Input (BNC-F): The SDI input receives standard audio/video
embedded SDI signals and can be configured for an unbalanced 75 Ω
connection. Use the
SDI Group Select switch (SA only) and
subgroups to monitor. To monitor this input, you must set the
Input
A/B
switch to A.
Power Connector
RS232
Tally
Digital Gain Calibration
SDI Out
SDI In
SDI/CVBS Out
CVBS In
CVBS Loop Out
Analog Audio Out from SDI
Balanced Analog Audio In
Selected Balanced Analog Audio Out