Snell MV-16, User Manual

Page: 13 / 92

MV-16 Multiviewer www.snellgroup.com Installation
Issue 1 Rev 12 Page 13 © 2013 Snell Limited
2.4.1 Video Inputs
All inputs (except DVI-I) are assigned to the 16 x BNC input connectors at the rear of the unit.
Up to 16 inputs can be applied if the configured video format uses a single BNC (SDI,
HD-SDI, composite). For S-Video, two connectors are required, for RGB/YUV three
connectors are required.
There are two DVI-I input connectors, as this is the maximum number of DVI-I inputs
supported per frame. All input types are assigned within the unit's system menu.
Component inputs such as YUV or RGB require three connections per channel and only one
channel can be handled per input card. However, a further two channels can be fed via the
analogue pins of the two DVI input connectors (and suitably assigned in the unit's menu)
making a maximum total of six channels. Any unused BNCs can be used for other video
formats.
For Y/C, two connections per channel are required. Therefore two channels can be handled
per input card, giving eight channels per frame. Any unused BNCs can be used for other
video formats.
2.4.2 Video Outputs
The main DVI-I output supports resolutions up to HD 1080p60, 16:9 (1920 x 1080). Both
digital and analogue outputs are available on this connector. Images on the output screen can
be varied continuously in size and position, cropped or displayed in pre-configured screen
layouts on a chosen colored background.
The main output is also used to display the unit's system menu when screen configuration
and set-up options are selected. This is not necessary when using external control via the
LAN.
2.4.3 Audio I/O
Audio levels may be displayed using up to 16 bargraphs in each tile, either superimposed on
each video image or outside active video. Audio is derived from the incoming embedded
audio (when using SDI or HDSDI inputs), or from up to 32 channels from external analogue or
AES/EBU sources, for which the appropriate audio input card option must be installed.
Additionally, external audio may be monitored using level data from the Snell NGM-164 via
the LAN.
Note:
1. When external inputs are not required, an optional output card (32 channels
analogue or 16 AES/EBU pairs) may be employed to provide demuxed outputs
from embedded audio.
2. There is an 8 channel analogue audio monitor output, which may be assigned from
any input channel of any format, excluding incoming external audio level data.
3. The number of audio channels described always refers to individual channels, not
channel pairs. For example, eight monitor outputs relate to eight individual
analogue channels or 4 pairs AES/EBU channels.
4. All bargraph scales and ballistics conform to international standards and include
BBC PPM, DIN PPM, Nordic PPM, VU, extended VU, and AES/EBU digital.