AJA 3G-AM - Chapter 1 - Introduction; Overview; Features

3G-AM Mini-Converter v1.2r3 4 www.aja.com
Chapter 1 – Introduction
Overview
The 3G-AM is a triple rate 8 channel AES audio embedder/disembedder. AES
audio can be embedded and disembedded simultaneously. The embedder is
user selectable, on a channel pair basis, to either “pass” existing SDI input audio
or embed AES input audio from the breakout cable. The ability to pass incoming
ancillary data makes it possible to embed up to 16 channels of audio by cascading
two units. Horizontal ancillary data (HANC) packets in compliance with SMPTE
291M can also be dropped at the input.
The 3G-AM automatically detects and configures to the input video standard.
3G-SDI formats up to and including 2048x1080p 60 YCbCr 4:2:2 are supported
(see ""Appendix A Specifications" on page 21 for a complete listing). SDI video
loops through the device with minimal delay. Loop through embedded SDI audio
supports up to 16 channels.
NOTE: 2048x1080p/psf 29.97 and 30 formats support a maximum of 8 channels
embedded audio.
Two 3G-AM packages exist. The 3G-AM-XLR ships with a four in, four out XLR
connector AES breakout cable. The 3G-AM-BNC ships with a BNC connector AES
breakout cable.
Using the Mini-Config application, you can configure data packets to be passed
from the AES inputs to embedded ancillary packets un-altered. This, along with
minimized embed/disembed latency, ensures 100 percent compatibility with
Dolby® bitstreams.
Features
• Triple rate 3G, HD, and SD-SDI embedder/disembedder
• 8 Channel AES I/O
• Supplied AES breakout cable, either XLR or BNC
• 1 x BNC 3G-SDI input
• 1 x BNC 3G-SDI output
• Setup via DIP switch or PC/Mac using USB port and supplied USB cable (Mini-
Cong conguration software application available via download from AJA
website)
• Uses universal input +5V power supply AJA model DWP-U-R1 (included)