Grass Valley 8911 - Manual (Page 7)

8911 Instruction Manual 1
8911 AES/EBU Reclocking
Distribution Amplifier
Introduction
The 8911 module is a digital audio 1x8 distribution amplifier that provides
reclocking of the digital signal. The amount of digital audio is ever
increasing as studios and broadcast facilities transition to digital transmis-
sion. The 8911 offers a low cost method of reclocking AES/EBU digital
audio signals. Reclocking reduces the signal jitter resulting from numerous
passes through other equipment such as audio routers and switchers. The
8911 fits into the 8900 series frames which offer passive loop-through
inputs, high density and a wide range of distribution and format conver-
sion functions.
The 8900 Series product line is a family of serial digital distribution ampli-
fiers (DAs) and signal processors that reside in a 2 rack unit frame which
accommodates up to ten modules. A variety of modules are available that
can provide fanout, timing/reclocking, monitoring, or error detection and
handling capabilities. Modules are selected by the user to suit their partic-
ular requirements.
The 8911 distribution amplifier provides:
■ Signal reclocking to reduce jitter,
■ Support of 32, 44.1 and 48 KHz sample rates,
■ Eight outputs for ample distribution,
■ Loop-through input enabling redundant system design,
■ Accepts input cable lengths of up to 1000m (Belden 8281 or equivalent),
and
■ Ten module capacity in a 2 rack unit 8900 frame.