Grass Valley 8920ADT - Manual (Page 11)

8920ADT Instruction Manual 5
Installation
Outputs
The 8920ADT provides two unbalanced AES3id/EBU serial digital outputs
J6 (AES Output +) and J8 (AES Output –). The module can be jumpered to
use these outputs as a balanced differential AES3id output using the BNC-
to-terminal strip output adapter provided.
Connect balanced or unbalanced outputs as specified in Table 3 .
Delay Control In/Out
An RS-232 level control signal from a frame synchronizer can be connected
to the Delay Control In BNC at J5 for auto-tracking audio delay. The Delay
Control In signal is also buffered and sent to the Delay Control Out BNC at
J7 so multiple units can be daisy chained to the frame synchronizer control
line.
Reference Inputs
Loop-through input BNCs at J9 and J10 are provided for the required
module reference. The reference signal can be an AES 48 kHz Word Clock,
video reference (NTSC/PAL color black), or an AES3id signal. If the
looping connector is not used, terminate the BNC into 75
Ω
.
Table 3. Output Connections
Unbalanced Outputs Balanced Outputs
Audio Channel BNC Connector Audio Channel Terminal Block
AES3id Output + J6, + OUT
Single balanced output +, GND, –
AES3id Output – J8, – OUT