User guide

© 2009 Wohler Technologies, Inc. All rights reserved.
15
AVMFlex58W Series User Guide
Rear Panel
SDI Output (BNC-F):The SDI output connector outputs a reclocked
(regenerated) copy of the of the signal entering the SDI input connector
and is configured for an unbalanced 75 connection. This output
functions regardless of other selection settings so that the reclocked
output can remain independent of the unit’s other monitoring
functions (as long as a valid SDI source is present on the SDI input).
SDI/CVBS Out (BNC-F): CVBS video signal converted from SD-SDI
video. Active as long as SDI video is present.
CVBS In: Much like CVBS In B on LP2S model.
Tally Control
The VPOD LCD display module provides a dual-color tally indication
LED accessed by the tally control connector located on the chassis rear
panel. The tally indicator LED is capable of displaying three colors: red,
green, and amber. Illuminating the red or green LED separately will
result in that tally color. Illuminating the red and green LEDs
simultaneously creates the amber color. For tally control connector pin
out functions, see Table 1–5 on page 17 below.
Two examples of tally connection configurations are shown in Figure-
3b, below. You can operate the Tally Indication LED by numerous
methods. The two tutorial examples showing isolated and non-isolated
activation are illustrated to show basic operation. Although switches
are employed in these examples, the LEDs interface with TTL levels.
You can design illumination circuits as shown, by using TTL buffers, or
by using transistors as switches.
Isolated
Operating the Tally Indication LED in an isolated configuration
requires an external (customer provided) power supply and tally
system. If your facility currently has a tally system with companion
power source, use this method to integrate the AVMFlex58W Series
tally with your existing tally matrix.
Note:
Ensure the LED power supply provides +5 to +12VDC.