Blackmagicdesign Micro Videohub User Manual

Developer Information
81
In the absence of simultaneous updates, the dialog expected for a simple label change is as follows:
OUTPUT LABELS:↵
6 new output label seven↵
↵
ACK↵
↵
OUTPUT LABELS:↵
6 new output label seven↵
↵
The asynchronous nature of the responses means that a client should never rely on the desired update
actually occurring and must simply watch for status updates from the Videohub Server and use only these
to update its local representation of the server state.
To lock a port, send an update to the port with the character “O” indicating that you wish to lock the port
for example:
SERIAL PORT LOCKS:↵
7 O↵
↵
ACK↵
↵
SERIAL PORT LOCKS:↵
7 O↵
↵
To forcibly unlock a port that has been locked by another client, send an update to the port with the character
"F" instead of using the usual unlock character "U". For example, to override a lock on port 7:
SERIAL PORT LOCKS:↵
7 F↵
↵
ACK↵
↵
SERIAL PORT LOCKS:↵
7 U↵
↵
Hardware status blocks can only be sent by the Videohub Server. If a client sends hardware status blocks,
they will be ignored.

Blackmagicdesign Micro Videohub Specifications

General

Brand	Blackmagicdesign
Model	Micro Videohub
Category	Switch
Language	English