Making Reference Connections; Making Aes Reference Connections - GRASS VALLEY NV8500 Series User Manual

Inputs and Outputs
Audio and Video References
Switch points use references based on priority, as follows:
Reference
Redundant
Dual

Making Reference Connections

AES reference connections require a stable audio signal source set at 48 kHz. Video reference
connections require a stable source of PAL, NTSC, or tri-level sync. The control card uses these
references to perform takes at the proper point in time (according to SMPTE RP168).

Making AES reference Connections

1 Locate the AES reference connections on the rear of the router, as shown in Figure 2-20. AES
reference connections are labeled AES REF 1 and AES REF 2.
Fig. 2-20: AES Reference connection (Rear View
2 Connect AES REF 1, using a 75 W BNC cable, to a stable 48 kHz audio source.
3 For redundancy, also connect AES REF 2 to a stable 48 kHz audio source.
58
First Second
VIDEO REF 1 VIDEO REF 2
VIDEO REF 1 Internal free run-
or ning
VIDEO REF 2
Third
Internal free running. Such signals are passed
through the router even though not locked to
a reference.
-n/a-
AES Reference Con-
nectors