Sirius 800 Series User Manual
Video Reference Inputs
Product Overview 3.11
Iss 5 Rev 7
Page 43
© 2017 SAM
3.11 Video Reference Inputs
The video reference signal inputs are used to ensure that the router crosspoint switch is
compliant to SMTPE RP168-2009 for that video standard. The Nucleus controller
automatically detects the incoming signal and therefore it can be configured to switch on a
specific standard.
The Workbench Switch Point Editor specifies which reference type the signal can switch from.
Set from
Edit Configuration
,
Routers
,
Advanced Configuration, References....
See the
Workbench user manual for details on how to configure the switching points.
The Sirius 800 router has four analogue BNC video reference inputs:
•
4 x analogue video, all auto sensing to 525 and 625 B&B, or HD tri-level reference
See section 16.2 for the video reference connector locations.
3.11.1 Derived Video References (Nucleus2 Controllers Only)
Derived video references enable the router to use a reference signal standard that is not
available from outside of the router frame as if it is a standard physical video reference input.
Video reference signals are derived (created) from the BNC video reference inputs on the
rear of the router. These derived video references can be a different format than the signal on
the BNC reference input but they must share the same frame rate as the original reference
signal they are created from.
Each router has a maximum of four references in total in any mix of BNC and Derived
references.
See section 5.3.3 for details on setting references for the router using the Door screen.
Alternatively Derived references can be configured in Workbench from:
Edit Configuration
,
Local Router Hardware
,
Advanced Configuration
,
Edit Derived References....
See the Workbench user manual for full setting details.
Example
(also shown in Figure 18)
•
525 59 Hz BNC Video Ref 1 used directly as a video reference.
This uses up one of the four available references.
•
625 50 Hz BNC Video Ref 2 used directly as a video reference and to produce a
1080i 50 Hz derived reference.
This uses up two of the four available references.
•
1080P 60 Hz BNC Video Ref 3 used to produce a 720P 60 Hz derived reference.
This uses up one of the four available references.
•
BNC Video Ref 4 not available as the maximum of four references are already in use.
Important:
If there is no reference signal, the router will crash switch on receiving the switch
command.
Important:
Ensure module address 279 is configured as “ReferenceControl”. If the module address
isn’t configured correctly derived references will not work. Configured in Workbench:
Edit
Configuration
,
Local Router Hardware
,
Advanced Configuration
,
Edit Module
Configurations...
See the Workbench user manual for full setting details.
Note:
•
A BNC video reference input can be used to create between one and four derived
video reference signals for use in the router.
•
Each router has a maximum of four video references in total in any mix of BNC and
derived references.