User manual GRASS VALLEY 8921ADT DATASHEET

[. . . ] [. . . ] In addition to conversion, it offers two forms of delay. These delays are summed--a fixed delay of up to 1. 5 seconds and a variable delay based on a signal from video decoders fitted with frame synchronizers or directly from a frame sync card, enabling adjustment for large, fixed lip sync errors while continually adjusting audio delay to match video delay created by the frame synchronizer. Operational modes allow modification to the outgoing signal, such as levels, channel swapping, channel summing, and phase inversion plus channel pairing for the digital audio streams. Many adjustments to this card can be performed directly on the module card-edge controls, while a few of the more complex adjustments require the Web-based interface or the Newton control panel. Audio Input 1 Audio Input 2 Audio Processing Sum Swap Invert Etc. Pin 3 + Pin 2 _ Pin 1 G 8900A-R J1 J2 J3 J4 J5 J6 J7 J8 J9 G Pin 1 _ + Pin 3 Pin 2 AES 1-1 AES 1-2 AES 1-3 Audio In 1 Audio In 3 Tracking Input (J5 to pins 2-3) or AES 1 Out (J5 to pins 1-2) Looping Reference Input AES 2-1 AES 2-2 AES 2-3 Audio In 2 Audio In 4 Tracking Output (J6 to pins 2-3) or AES 2 Out (J6 to pins 1-2) J11 J12 J13 J14 Loopthru Unbalanced AES 1/ Tracking Input A-to-D Conversion Gain, Delay and Pairing Balanced AES 1 Audio Input 3 Unbalanced AES 2/ Tracking Input Audio Input 4 Balanced AES 2 Reference Input Ethernet LEDs Specifications Supported Frame Types GeckoFlex with 8900A-R GeckoFlex Audio rear module, Gecko audio frames: 8900TX-A, 8900TF-A, 8900TFN-A Ordering Information Digital Outputs Number of outputs: Three balanced and one unbalanced per channel Signal type: ·Balanced:AES-3id-1992 ·Unbalanced:AES-3id-2001 Output voltage level: ·Balanced:3Vp-p±0. 2V@110 ·Unbalanced:1Vp-p±0. 2V@75 Output impedance: ·Balanced:110 ·Unbalanced:75 Connector type: Three-pin mini-terminal strip Sample rate: 48 kHz or 96 kHz jumper selectable This module can be mounted in a GeckoFlex frame when ordered with the 8900A-R GeckoFlex Audio Rear module. 8921ADT Four-channel audio analog-to-digital converter with delay tracking Power Rating 4. 7 Watts ­ single slot Analog Inputs Number of inputs: Four balanced Impedance: >22 k Common mode input voltage: 20V maximum Connector: Three-pin mini-terminal strip 8900-A-CBL (Gecko Frames only) Package of four three-terminal to dual BNC cables, used for unbalanced outputs on modules in a Gecko frame 8900-GFA-CBL (GeckoFlex Frames only) Package of four three-terminal to dual BNC cables, used for unbalanced outputs on 8900A-R modules in a GeckoFlex frame Reference Input Number of inputs: One differential loop-through Impedance: High Z loop-through Input return loss: >40 dB 100 kHz to 10 MHz @ 75 Common mode input voltage: ±1V maximum For detailed specifications, installation, and setup instructions see: www. grassvalley. com/docs/modular [. . . ] [. . . ]