User manual

AVMFlex-SA Series User Manual P/N 821624 Rev-A

Please refer to Figure-2c on the facing page to familiarize yourself with the rear panel features of the AVMFlex-SA Series units. The

following sections describe these features and are referenced, by letter, to Figure-2c.

Rear Panel Features

Section 2: Operation

Power Connector

Attach the supplied standard IEC-320 power cord between this connector and mains power (100 - 250VAC, 50/60 Hz).

RS232 Connector

This connector is used for uploading revision data into the 910935 Audio/Video demux PCB.

Tally Connector

This 25 pin sub-miniature female “D” connector (TALLY) allows you to tally the Tally Indication LED (Item 1, page 10).

Connection details are described on page 23.

SDI Digital Gain Calibration DIP Switch

SDI input Digital Gain Calibration, the analog level which corresponds to a given digital input value, is settable via this 2-

position DIP switch module. The factory setting is +4 dB (analog) = -20 dBFS (digital). See the silk-screened chart on the

rear panel or the diagram below for settings.

SDI Input and Output Connectors

The SDI IN female BNC connector is meant to receive standard audio/video embedded SDI signals and is configured for an

unbalanced 75 Ω connection. Use the SDI Group Select Switch (Item 3, page 8) to choose the SDI Group and Subgroups

to monitor. To monitor this input, the A/B Select Switch (Item 4, page 10) on the VPOD module must be set to A.

The SDI OUT female BNC connector outputs a reclocked (regenerated) copy of the signal entering the SDI IN input

connector and is configured for an unbalanced 75 Ω connection. This output functions regardless of other selection settings.

This feature enables output of the re-clocked SDI signal independant of the units other monitoring functions (as long as a

valid SDI source is present at the SDI IN input connector).

CVBS Video Ouput (From SDI Input)

The SDI CVBS OUT female BNC connector outputs CVBS (composite analog) video signals de-embedded from the SDI

bitstream entering the SDI IN input connector (Item E).

This output functions regardless of other selection settings. This feature enables de-embedding of the SDI signal to CVBS

independant of the units other monitoring functions (as long as a valid SDI source is present at the SDI IN input connector).

CVBS Video Input and Loop-Through Connectors

The CVBS IN female BNC connector accepts standard CVBS (composite analog) video signals and is configured for 75 Ω

impedance connections. To monitor this input, the A/B Select Switch (Item 4, page 10) on the VPOD module must be set

to B. Note that the Balanced Analog Audio Input Connectors (Item J, page 14) are relayed to the CVBS input selection,

and so are automatically selected for audio monitoring when the CVBS video input source is selected for video monitoring.

The CVBS LOOP female BNC connector provides passive signal-through connections from the CVBS IN connector to

down-stream equipment. See Item H for information about setting the termination for these connectors. Note that these

outputs function even if power to the AVMFlex-SA unit is turned OFF.

CVBS Input Temination Switch

The LIFT/TERM slide switch is used to set the termination for the CVBS input. If the CVBS LOOP connector (Item G)

is connected to downstream equipment, un-terminate by setting the switch to the DOWN position (LIFT). If no

downstream equipment is connected, terminate by setting the switch to the UP position (TERM).

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