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User Operations Guide—Mira Instant Replay Server
Revised: 5 September 2014
Copyright ©2014, Abekas Incorporated
179
Multi-Screen Video+Key Channel Modes
The following configurations of the Mira 8-Channel and Mira 4-Channel servers allow multiple video+key channel pairs to operate as a
“Multi-Screen Video+Key” (VK) transport, with each multi-screen VK element transport having one RS422 serial control port.
With Mira configured this way, each multi-screen VK channel pair is a single transport, and this multi-screen VK transport can operate as
either a recorder or player.
When Media Files of non-standard resolution (i.e. 5,760x1080) that contain “RGB+Alpha with Audio” are ingested with the Mira Media File
Import utility, the clips created in Mira will have VKA (video+key+audio) tracks—and will play the video and key on the multiple VK paired
channels.
IMPORTANT NOTE:
Multi-Screen Import for information on importing multi-screen files.
IMPORTANT NOTE:
The following tables detail the channel pairing for multi-screen VK channel configuration, with RS422 serial control.
No other multi-screen VK channel pairing is possible. The shading highlights channels that are paired together for multi-screen VK
operation.
Mira 4-Channel & Mira 8-Channel Servers
Configuration
SD/HD-SDI Video IN / OUT
RS422 Control Port
ChA+ChC | ChB+ChD
2X VK
[2-wide video+2 key]
= VIDEO
= KEY
= 2X VK
= Unused
= VIDEO
= KEY
= Unused
= Unused
Mira 8-Channel Servers Only
Configuration
SD/HD-SDI Video IN / OUT
RS422 Control Port
3X VK + 2V
[3-wide video+3 key]
and
[2 Record or Play]
= VIDEO
= KEY
3X VK
Unused
= VIDEO
= KEY
Unused
Unused
= VIDEO
= KEY
Unused
Unused
V REC/PLAY
V REC/PLAY
V REC/PLAY
V REC/PLAY
3X VK + 1VK
[3-wide video + 3 key]
and
[1 VK Record or Play]
= VIDEO
= KEY
3X VK
Unused
= VIDEO
= KEY
Unused
Unused
= VIDEO
= KEY
Unused
Unused
= VIDEO
= KEY
VK
Unused
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Summary of Contents for Mira
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